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Jeep · Known Issues

2021 Jeep Grand Cherokee Problems: 35 Known Issues

2021 model year · 3,920+ owner reports · Updated September 2026

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2021 · All trims · All engines

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Issue summary

According to Au7o's analysis of 3,920+ owner reports, the 2021 Jeep Grand Cherokee has 35 documented known issues, with 3 rated critical. The most serious are Loss of Steering Control: Upper Control Arm Pinch Bolt & Intermediate Shaft (Recalls 23V-352, 24V-131) ($0-$0 repair), 3.6L Pentastar Upgrade Rocker Arm / Intake Camshaft Lobe Wear Causing Misfire and Tick ($600-$3,500 repair) and 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts. The most commonly reported issue is 2011-2021 Quadra-Lift Warning or Uneven Ride Height - Diagnose Before Parts with 920 owner reports. Across all issues with published estimates, repair costs range from $20 to $3,500. DIY maintenance guides at au7o.io.

In This Article

  • Grand Cherokee Engine8
  • Grand Cherokee Steering1
  • Grand Cherokee Electrical4
  • Grand Cherokee Suspension3
  • Grand Cherokee Drivetrain3
  • Grand Cherokee Body/Panels3
  • Grand Cherokee Fuel System3
  • Grand Cherokee Cooling2
  • Grand Cherokee HVAC2
  • Grand Cherokee Emissions2
  • Grand Cherokee Transmission1
  • Grand Cherokee Safety/Recalls1
  • Grand Cherokee Exterior1
  • Grand Cherokee Exhaust1
  • Recalls39
  • FAQ
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In This Article

  • Engine8
  • Steering1
  • Electrical4
Suspension
3
  • Drivetrain3
  • Body/Panels3
  • Fuel System3
  • Cooling2
  • HVAC2
  • Emissions2
  • Transmission1
  • Safety/Recalls1
  • Exterior1
  • Exhaust1
  • Recalls39
  • FAQ
  • All 35 Known Issues

    Filter:
    ALL YEARS202620252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994

    On the 2018-2024 Jeep Grand Cherokee 3.6L Pentastar Upgrade V6 (eTorque), the updated/'Upgrade' 3.6L Pentastar V6 (used on later WK2 and the WL fifth-gen) suffers premature wear of the intake rocker-arm roller bearings and/or intake camshaft lobes, traced by TSB to a manufacturing issue. As the rocker bearing or cam lobe wears, the valve no longer opens fully, producing a distinct ticking noise and a misfire on the affected cylinder; if ignored the failing rocker can damage the camshaft. This is a separate failure from the early-2011-2013 left-head defect and from the 5.7 HEMI MDS lifter — it affects the V6 valvetrain across both generations.

    This issue also affects: Alfa Romeo Stelvio

    Common Symptoms

    • Cylinder-specific misfire code
    • Ticking/tapping noise from the valvetrain
    • Rough idle, hesitation, check-engine light
    • Misfire that does not move when coil/plug is swapped
    • Reduced power

    How to Fix

    Diagnose a cylinder-specific misfire accompanied by a valvetrain tick with a scope/inspection of the intake rocker arms and camshaft lobes. Replace worn rocker arms and, where the cam lobe is scored, the camshaft, per the applicable Pentastar Upgrade TSB; address promptly to avoid camshaft and follow-on damage. Replace spark plug/coil first only to rule out the easy cause — a persistent misfire with a tick is valvetrain, not ignition.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar right intake-camshaft service kit
      OEMMopar 68661147AB

      Complete FCA bulletin repair after right-bank intake high-lift lobe/rocker wear is confirmed Fitment/availability: 68661147AB supersedes 68661147AA and is the right-side kit named in TSB 09-011-25. Confirm VIN, ERC/ERG sales code, build/…

      eBay
    • Genuine Mopar left intake-camshaft service kit
      OEMMopar 68661146AA

      Complete FCA bulletin repair after left-bank intake high-lift lobe/rocker wear is confirmed Fitment/availability: 68661146AA is the left-side kit named in TSB 09-011-25. Confirm VIN, ERC/ERG sales code, build/mileage scope and left-bank …

      eBay

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningDo not order a camshaft kit from a misfire code alone. FCA says the symptom may be related to cam/rocker wear, so the high-lift lobe and slider on the indicated bank must be inspected first.
    • TipConfirm right versus left bank before ordering. FCA provides two different complete kits, and each already includes the camshaft, rocker arms, sealer, and gaskets for that side.
    • WarningThe WL bulletin scope ends at the August 19, 2024 build cutoff even though model-year coverage extends through 2025. Verify the VIN/build record and ERC or ERG sales code.
    Typical repair cost:$600 - $3,500

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee 5.7L HEMI V8 with MDS/VVT, a persistent tick and cylinder misfire on a 5.7L Grand Cherokee can be consistent with valvetrain damage, but those symptoms do not identify a failed MDS lifter or worn camshaft by themselves. Exhaust-manifold leaks, ignition or injector faults, oil-pressure problems, rocker/pushrod faults, compression loss, and other mechanical conditions can overlap. FCA has published a cam/lifter inspection note for certain 5.7L MDS police Charger, Durango, and Ram 1500 vehicles, but that document does not establish the prior card's blanket Grand Cherokee year, mileage, DTC, or part-set claims.

    This issue also affects: Alfa Romeo Stelvio

    Common Symptoms

    • Persistent engine-speed tick that remains after warm-up
    • Cylinder-specific or random misfire
    • Rough running or reduced power
    • Abnormal rocker motion or confirmed cam-lobe/lifter-roller damage
    • Metal debris found during oil-filter inspection

    How to Fix

    Record the exact DTCs and freeze-frame data, verify oil level and mechanical oil pressure, and identify whether the sound is from the exhaust manifold or inside the valvetrain. Diagnose ignition and injector causes for the affected cylinder, then perform factory compression and cylinder-leakage testing as indicated. If the evidence remains mechanical, inspect rocker motion, pushrods, lifter rollers, and cam lobes using service information for the exact VIN and engine build. Only after lifter or cam damage is physically confirmed should a technician select the correct mix of deactivating and standard lifters, yokes, camshaft, gaskets, torque-to-yield fasteners, and any contamination-related work. Stop driving and obtain professional diagnosis if the oil-pressure warning appears, the malfunction lamp flashes, severe misfire develops, or metal is found in the oil/filter.

    Owner tips & cautions

    • WarningDo not buy a camshaft or lifter kit from a tick, a generic misfire code, or the old card's part list. The correct repair depends on physical inspection and the VIN-specific MDS valvetrain configuration.
    • TipRule out the exhaust-manifold cold-tick condition first. FCA has a separate crack-inspection path and updated manifold kits for covered 2019-2022 5.7L vehicles.

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Manually Verified
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2012-2021 Jeep Grand Cherokee 3.6L Pentastar V6, oil found around the Pentastar oil filter adapter does not prove that the complete adapter or oil cooler has cracked. FCA's service guidance separates several repair paths: a cap O-ring that is cut, damaged, or installed in the wrong groove; five adapter bolts that are not at the specified torque; and a confirmed leak at the adapter-to-block O-rings and gaskets. FCA's 2021 guidance tells technicians to reseal a confirmed interface leak rather than replace the adapter on the covered non-2014 vehicles, while model-year 2014 is handled as an adapter-replacement exception. The previous card treated 2011-2020 vehicles alike, prescribed an aluminum assembly, implied oil/coolant cross-contamination, and listed P0128 and P26B7 without reviewed support.

    Common Symptoms

    • Oil visible around the oil-filter cap or adapter
    • Oil collecting in the engine valley or running down the engine
    • A leak that reappears in dye tracing at the adapter-to-block interface

    How to Fix

    Clean the area and add approved oil dye so the source can be observed before parts are ordered. Inspect the oil-filter-cap O-ring for damage and confirm it is seated in the correct groove. Check the five oil-filter-adapter bolts against FCA's 12 N-m specification and document any under-torque condition. If dye confirms a leak at the adapter-to-block interface, follow the current VIN- and model-year-specific FCA service information: the cited guidance calls for O-ring/gasket kit 68191356A$ rather than a complete adapter on covered vehicles other than model year 2014, and calls for adapter replacement on model year 2014. Transfer sensors only when the applicable replacement procedure requires it. Verify the exact suffix and current part by VIN before ordering. Do not buy a housing, cooler, seal kit, or aluminum conversion until the leak source and installed housing are confirmed.

    Owner tips & cautions

    • TipAsk the shop to show the dye-confirmed source: cap O-ring, adapter bolts, or the adapter-to-block interface. Those paths do not all require the same part.
    • WarningDo not authorize a complete housing from oil in the valley alone. FCA specifically directs seal-only repair for a confirmed interface leak on covered non-2014 vehicles.
    • WarningModel year 2014 is an exception in FCA's cited guidance. Confirm the VIN, model year, leak source, and current part suffix before ordering anything.

    Research This Issue

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    NHTSA Verified
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2022 Jeep Grand Cherokee, the electronic-throttle-control warning lamp and reduced-power or limp mode are protective responses, not a diagnosis that the throttle body has failed. Depending on the stored DTC and application, the factory path may lead to a stuck or contaminated throttle plate, throttle motor or position-sensor response, accelerator-pedal sensors, a five-volt supply fault, damaged wiring or terminals, or a PCM issue. The old card's thermostat shopping claim is not part of the cited ETC diagnostic path, and a throttle body should not be ordered from the warning lamp alone.

    Common Symptoms

    • Electronic throttle control warning lamp
    • Reduced engine output, limited RPM, or limp mode
    • Poor or absent accelerator response
    • One or more throttle, pedal, voltage-supply, or actuator DTCs

    How to Fix

    Before clearing anything, record every PCM DTC, pending code, freeze-frame value, battery voltage, temperature, and the exact conditions under which reduced power occurred. Diagnose prerequisite five-volt-supply, throttle-position, accelerator-pedal, or other active faults in the order specified by the current factory procedure for that VIN and engine. For a P2111-style fault, inspect the throttle plate for binding or foreign material and run the scan-tool throttle-follower test, then test the motor circuits, connector terminals, and wiring as directed. For a pedal-correlation code such as P2138, follow the accelerator-pedal sensor and circuit procedure instead. Replace and relearn a throttle body only when the applicable test condemns it; do not buy a thermostat as an ETC rule-out part.

    Owner tips & cautions

    • WarningAn ETC lamp does not prove the throttle body failed. Save the codes and freeze-frame data before clearing them or disconnecting the battery.
    • TipAsk the shop to name the exact DTC and the failed factory test step before approving any throttle-body, pedal, wiring, or PCM part.

    Research This Issue

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    Manually Verified
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2023 Jeep Grand Cherokee 3.6L Pentastar V6, the 3.6L Pentastar's oil filter housing is an integrated plastic oil-cooler assembly that mounts in the valley under the intake manifold. The plastic warps and becomes brittle from repeated heat cycling — expanding and contracting at a different rate than the aluminum engine — so the gaskets can no longer seal, and the housing can crack (even from over-tightening the oil filter cap). Because the assembly also routes engine coolant through its integrated oil cooler, failures produce oil leaks, coolant loss, and in worse cases oil-and-coolant intermixing. Owners typically first notice oil pooling in the valley/rear of the engine and/or unexplained low coolant. This is one of the most common Pentastar shop repairs; Chrysler discontinued the plastic assembly but never issued a recall. It is a different failure and location from the oil-pan-gasket/oil-pressure-sensor leak, and affects a wide 2011-2023 Pentastar population across WK2 and WL Grand Cherokees.

    Common Symptoms

    • Oil pooling at rear/valley/passenger side of engine
    • Burning oil smell from engine bay
    • Unexplained low coolant / coolant loss
    • Oil and coolant intermixing (milky oil or oily coolant) in severe cases
    • Visible oil residue around the oil filter cap/housing

    How to Fix

    Replace the failed oil filter housing/oil-cooler assembly. The durable accepted fix is an upgraded all-aluminum housing (e.g., Dorman 926-959, earlier 926-876) rather than the failure-prone plastic OE part, with new housing/cooler gaskets and O-rings and fresh oil/coolant. If oil-coolant intermixing occurred, flush the cooling system and change oil. Because the housing sits under the intake manifold, replacement includes intake removal, so shops often do the intake gasket, spark plugs, and a coolant flush at the same time. Housing-only labor+part runs roughly $400-$900, rising with the added items.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar engine-oil filter for the original 2011-2013 3.6L adapter
      OEMMopar 68079744AD

      Routine oil-filter service on a confirmed original-design 2011-2013 Grand Cherokee 3.6L housing Fitment/availability: 68079744AD supersedes 68079744AC/AA/AB and is cataloged for the 2011-2013 Grand Cherokee 3.6L.

      MoparPartsGiant
    • Genuine Mopar engine-oil filter for the changed original 2014 3.6L adapter
      OEMMopar 68191349AA / 68191349AB / 68191349AC

      Routine oil-filter service on a confirmed original-design 2014 Grand Cherokee 3.6L housing Fitment/availability: 68191349AA is the filter identified by FCA for the changed 2014 design and has later AB/AC supersessions. It is not intercha…

      eBay

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningThe 2011-2013 and 2014 filters are not interchangeable. The two product links are intentionally separated by model year and original factory housing.
    • WarningAn aftermarket aluminum housing can change the required filter. Identify that housing and follow its own application instructions instead of ordering from the vehicle year alone.
    • TipCompare the new element and supplied O-ring with the parts removed before installation; use only the seal included with the correct filter.
    Typical repair cost:$400 - $900

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2023 Jeep Grand Cherokee, wK2 (and 5th-gen WL) Grand Cherokees use hydraulic fluid-filled engine mounts. The mounts commonly fail — the internal fluid leaks out (visible reddish-brown residue on the subframe) and the rubber degrades — producing a pronounced vibration felt through the steering wheel, seat, and floor at idle in gear, plus a clunk on acceleration or gear engagement. It is especially prevalent on the 3.6L Pentastar left/front mount, and forums note 2021-2022 units failing repeatedly; a service bulletin exists for the mounts. It is frequently confused with driveline vibration, so both should be checked together.

    Common Symptoms

    • Heavy vibration at idle, worse in Drive/Reverse at a stop
    • Clunk/thump on acceleration or shifting into gear
    • Reddish-brown fluid residue on the subframe under the engine
    • Vibration through steering wheel and floor
    • Engine 'settling' movement felt in cabin
    • Repeat failures on newer model years

    How to Fix

    Inspect the engine mounts for fluid weepage and separated rubber; wet/leaking hydraulic mounts should be replaced (replace in pairs on higher-mileage trucks and inspect the transmission mount at the same time). Use OEM Mopar hydraulic mounts rather than solid rubber aftermarket units, which reintroduce vibration. Re-verify idle smoothness in gear after replacement and confirm the driveshaft/mounts aren't jointly contributing.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar left-side engine mount isolator for the 3.6L V6 WK2 branch
      OEMMopar 68252518AB

      Replacement after inspection confirms the left V6 mount has leaked, separated or developed excessive movement Fitment/availability: 68252518AB replaces 68252518AA/68110950AA-AC/52124671AF and is described as the left-side all-V6 mount. U…

      Mopar Genuine Parts
    • Genuine Mopar engine mount isolator for the 5.7L V8 WK2 branch
      OEMMopar 68252522AA / 68252522AB

      Replacement after inspection confirms the applicable 5.7L mount has failed Fitment/availability: 68252522AA is replaced by AB and the live OEM catalog lists 2016-2021 Grand Cherokee 5.7L applications. Confirm VIN, mount position and curr…

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$300 - $950

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026
    Community reported
    750 owners

    On the 2011-2021 Jeep Grand Cherokee, hEMI-equipped Grand Cherokees can develop the characteristic MDS lifter tick. This ticking noise is most noticeable at idle and during light throttle. While often not immediately harmful, it indicates lifter wear from the MDS cylinder deactivation system.

    This issue also affects: Alfa Romeo Stelvio

    Common Symptoms

    • Ticking noise at idle
    • Tick follows engine RPM
    • Noise from top of engine
    • Tick more pronounced when warm
    • Noise comes and goes

    How to Fix

    Use quality synthetic oil meeting Chrysler MS-6395 spec. Consider MDS delete kit for permanent solution. Some owners have replaced lifters and camshaft under extended warranty. Regular oil changes help minimize tick progression.

    Owner tips & cautions

    • TipRegular oil changes help minimize tick progression.
    • TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
    Typical repair cost:$0 - $3,000

    Research This Issue

    Based on 750 owner reports

    GoogleRedditYouTubeNHTSA
    Community Reported
    High Confidence750 owner reportsLast reported by owners Feb 2024Reviewed Feb 2026

    On the 2011-2021 Jeep Grand Cherokee 3.6L Pentastar V6, the 3.6L Pentastar uses a two-piece (upper and lower) oil pan, and the upper oil-pan gasket commonly seeps oil down the back of the engine in a pattern that mimics a rear main seal leak. Separately, the engine oil-pressure sensor located in the valley beneath the intake manifold is a frequent leak point. Owners (and even shops) repeatedly misdiagnose these as rear main seal failures, with some reporting multiple needless rear-seal jobs before the upper oil pan gasket or pressure sensor is found to be the true source.

    This issue also affects: Alfa Romeo Giulia

    Common Symptoms

    • Oil drips/spots under the vehicle
    • Oil film down the rear/back of the engine
    • Burning-oil smell from drips on exhaust
    • Oil-pressure warning if the pressure sensor leaks/fails
    • Low oil level between changes

    How to Fix

    Clean the area and use UV dye to pinpoint the source before disassembly. For an upper oil-pan gasket leak, replace the upper pan gasket (significant labor). For an oil-pressure sensor leak, replace the sensor under the intake manifold. Rule out the oil cooler/filter housing (a separate known leak) so the correct part is fixed the first time.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar engine oil-pressure sensor for FCA P0520 service action
      OEMMopar 05149062AA

      Confirm VIN, ERB engine, MDH cutoff and P0520; it is not an oil-pan, rear-main-seal or oil-filter-adapter leak repair.

      eBay
    • Genuine Mopar upper intake-plenum seal, six required
      OEMMopar 5184562AC (quantity 6)

      Six are required; confirm retailer package qua

      MoparPartsGiant
    • Genuine Mopar lower intake-manifold seal, six required
      OEMMopar 5184331AC (quantity 6)

      Six are required; confirm quantity and VIN b

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningP0520 is a sensor-circuit code. Do not describe it as proof of an oil leak or actual low mechanical oil pressure without the required diagnosis.
    • TipConfirm the March 12, 2014 build cutoff and exact DTC before ordering. The FCA service action is narrower than the old 2011-2021 card.
    • WarningThe linked sensor is the exact 05149062AA named by FCA. The required intake seals are listed without retailer links until exact product pages and current VIN supersessions are verified.
    Typical repair cost:$150 - $1,200

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2021-2024 Jeep Grand Cherokee, on the new WL-generation Grand Cherokee and Grand Cherokee L, two assembly defects can cause loss of steering control. Upper control arm (UCA) pinch bolts damaged during assembly can break and let the UCA separate from the steering knuckle, dropping the wheel outboard. Separately, an incorrectly assembled steering column intermediate shaft can disconnect from the U-joint. Combined recalls cover well over 400,000 vehicles.

    Common Symptoms

    • Increased free play or looseness in the steering
    • Clunking or unusual noise when turning
    • Wandering or imprecise steering
    • Sudden loss of steering control
    • Wheel/knuckle separation in severe cases

    How to Fix

    Have the open recalls performed: NHTSA 23V-352 replaces the steering column intermediate shaft / U-joint assembly, and 24V-131 (with related campaigns) inspects and replaces the upper control arm pinch bolts free of charge. Address any steering play or clunking immediately rather than waiting.

    Typical repair cost:$0 - $0

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026

    On the 2021-2023 Jeep Grand Cherokee, chrysler recalled 2022-2023 Grand Cherokee, 2021-2023 Grand Cherokee L (plus 2022-2024 Wagoneer/Grand Wagoneer) because the Central Vision Park Assist Module (CVPAM) software can prevent the rearview image from displaying when the vehicle is shifted into reverse — a non-compliance with FMVSS 111 'Rear Visibility' that raises backover-crash risk. A separate small recall covered a handful of units with an improperly connected coaxial camera cable. Owners of 5th-gen WL vehicles continue to report blank/black backup-camera screens and frozen displays tied to radio/module software, with additional camera-related recalls issued through 2024.

    Common Symptoms

    • black or blank screen when shifting to reverse
    • no backup camera image
    • frozen rearview camera display
    • park-assist/camera fault

    How to Fix

    Have the dealer perform the recall software update to the Central Vision Park Assist Module (and verify the camera coaxial cable connection if applicable) at no charge. If the camera screen is black or frozen, a Uconnect/radio software update or module reset is often the fix. Check VIN recall status via NHTSA before assuming an out-of-warranty repair.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026
    Community reported
    820 owners

    On the 2014-2021 Jeep Grand Cherokee, the Uconnect touchscreen display can develop issues including delamination (bubbling/peeling of the touchscreen layers), unresponsive touch areas, and complete screen failure. Heat exposure accelerates these issues.

    Common Symptoms

    • Bubbling or peeling on touchscreen
    • Touch not registering in certain areas
    • Screen going black
    • Ghost touches (phantom inputs)
    • Display flickering

    How to Fix

    Screen replacement required for physical damage or delamination. Software issues may be resolved with updates. Some owners have had screens replaced under extended warranty. Third-party screen replacements available at lower cost than dealer.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Cuescreens DJ084NA-01A Uconnect 3C VP3/VP4 replacement touchscreen
      OEMCuescreens DJ084NA-01A

      Early-system touchscreen replacement after physical touch-layer failure is confirmed Fitment/availability: For specified 2014-2017 Grand Cherokee VP3/VP4 Uconnect 3C radios with visible DJ084NA-01A screen identification.

      Cuescreens
    • Cuescreens LA084X01 Uconnect 4/4C UAQ/UAS LCD-and-touchscreen assembly
      OEMCuescreens LA084X01 (SL01/SL02/SL03)

      Later-system LCD/touch assembly after physical delamination or panel failure is confirmed Fitment/availability: For Uconnect 4/4C UAQ/UAS radios whose removed screen label matches LA084X01 SL01, SL02 or SL03. Confirm the label rather tha…

      Cuescreens

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
    • TipSearch Jeep Grand Cherokee forums and owner groups for real-world experiences and DIY guides
    • TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
    Typical repair cost:$200 - $1,500

    Research This Issue

    Based on 820 owner reports

    GoogleRedditYouTubeNHTSA
    Community Reported
    High Confidence820 owner reportsLast reported by owners Feb 2024Reviewed Feb 2026

    On the 2014-2021 Jeep Grand Cherokee, stop-Start-equipped WK2 Grand Cherokees use a small secondary (auxiliary) AGM battery in addition to the main battery to power electronics during the engine auto-restart. This auxiliary battery (and sometimes the main AGM) fails relatively early, producing 'Stop/Start not available - battery charging' or 'Stop/Start Not Ready' messages and disabling the auto start-stop feature. Installing a non-AGM wet-cell battery causes premature failure because it cannot handle the cycling load. The Intelligent Battery Sensor (IBS) can also need a relearn after any battery replacement, during which ESS is temporarily inhibited.

    Common Symptoms

    • 'Stop/Start not available - battery charging' message
    • 'Stop/Start Not Ready' / feature disabled
    • Intermittent ESS operation that quits after a few stops
    • Possible slow crank or electrical glitches

    How to Fix

    Test both the main and auxiliary batteries; replace the failed unit with the correct AGM specification (the auxiliary is a small dedicated battery, often near the air-box/fender). After replacement allow the IBS relearn to complete (several drive cycles). Never substitute a standard flooded battery. Verify charging-system output if messages persist.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • DieHard Platinum AUX14 AGM auxiliary ESS battery
      OEMDieHard AUX14-1

      Replacement for a failed auxiliary battery in a verified AUX14-equipped dual-battery ESS configuration Fitment/availability: AUX14, 12 V, 14 Ah and 200 CCA AGM. Match the installed auxiliary battery dimensions, terminals, label and VIN; …

      Advance Auto Parts
    • DieHard Platinum H6 / Group 48 AGM main battery
      OEMDieHard H6-AGM

      Match label, dimensions, polarity, vent and VIN; it is not interchangeable with H7 merely because both appear in WK2 catalogs.

      Advance Auto Parts
    • DieHard Platinum H7 / Group 94R AGM main battery
      OEMDieHard H7-AGM

      Confirm the physical label, tray, venting, terminals and VIN; never substitute it for an H6 or use this link to infer ESS equipment.

      Advance Auto Parts

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$150 - $500

    Research This Issue

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee, grand Cherokees equipped with factory HID/xenon projector headlights are commonly reported for dim or color-shifted low beams as the bulbs age, single-side bulb or ballast failures, and internal lens condensation. Per Chrysler service guidance, some condensation inside vented HID housings is considered normal and should clear as the bulbs heat up; however, persistent moisture from a failed lens-to-housing seal can corrode reflective surfaces and shorten bulb life. Older assemblies also haze/yellow, further reducing output.

    Common Symptoms

    • Dim or yellowed low-beam output
    • One headlight out or flickering (bulb/ballast)
    • Fog/condensation inside the headlight lens
    • High beam not activating on one side
    • Hazed/yellowed lens reducing brightness

    How to Fix

    For dim/aged output replace the HID bulbs (and ballast if a bulb fails to strike); match bulbs in pairs for even color. For mechanical high/low projector faults inspect the projector shutter solenoid. If condensation does not clear after running the lights, replace the headlight assembly due to a failed seal. Restore hazed lenses or replace assemblies as needed.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Philips Xenon Standard D3S factory-HID headlight bulb
      OEMPhilips 42403C1

      Replacement for a confirmed failed or materially aged D3S bulb in a factory-HID headlamp Fitment/availability: Philips 42403C1 is D3S, 42 V, 35 W and 4300 K.

      Walmart

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    Typical repair cost:$120 - $1,000

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026
    Community reported
    920 owners

    On the 2011-2021 Jeep Grand Cherokee, quadra-Lift is a closed, electronically controlled air-suspension system, so a Service Air Suspension message, a low corner, or a denied height change does not identify one universal failed part. The factory diagnostic path covers electrical and communication faults, fuses and voltage, pinched or damaged lines, leaking springs, disconnected sensor linkages, water or blockage in the compressor intake, air-mass loss, valve/compressor faults, software, and the Air Suspension Control Module. The prior card also incorrectly treated SRT and Trackhawk as automatic Quadra-Lift applications; applicability should be established by sales code SER or the vehicle build sheet.

    Common Symptoms

    • Service Air Suspension message
    • One corner or one axle sits low
    • Ride-height change is slow, denied, or inoperative
    • Quadra-Lift height indicators flash or normal leveling is disabled

    How to Fix

    Confirm the vehicle is equipped with Quadra-Lift sales code SER, record the exact ASCM DTCs and environmental data, and check VIN/build-date-specific FCA bulletins before ordering hardware. Follow the factory sequence: repair voltage or communication faults first; inspect fuses, air lines, springs, height-sensor linkages, compressor intake/filter, and visible plumbing; then use a capable scan tool to run the Air Mass and Air Ride Height routines and follow the DTC-specific tree. On 2011-2012 vehicles built before May 1, 2012, U0415-00 or C159E-15 with a Service Air Suspension message may be addressed by FCA TSB 08-034-12's ASCM software update. Replace only the component proven failed. A completely depleted system requires the specified refill equipment, scan-tool procedure, and purity-class-5 nitrogen; do not fill it with ordinary shop air or shotgun-replace springs, sensors, and the compressor.

    Owner tips & cautions

    • WarningDo not replace a compressor because the vehicle sits low. A leaking spring or line, sensor/linkage fault, intake restriction, valve fault, low system air mass, or software condition can create overlapping symptoms and can overwork a replacement compressor.
    • TipAsk the shop to record the ASCM DTCs, air-mass result, ride-height routine result, and verified leak location. Those findings should select the part, not a generic model-level shopping list.

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    Based on 920 owner reports

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    High ConfidenceVerified920 owner reportsLast reported by owners Feb 2024Reviewed Jul 2026

    On the 2011-2021 Jeep Grand Cherokee, a WK2 front-end clunk over bumps, during braking, or while steering can come from more than the sway-bar links or lower control arms named in the old card. The source can vary with loading and may involve a stabilizer link or bushing, control-arm bushing, ball joint, tie-rod end, shock or upper mount, wheel bearing, loose fastener, brake hardware, or another nearby component. Standard and high-performance suspension packages also use different side-specific parts. Ordering four components from the noise alone risks replacing good parts while leaving a safety-relevant loose joint in service.

    Common Symptoms

    • Clunk or knock from the front over bumps
    • Noise during braking, acceleration, or steering load changes
    • Possible looseness, uneven tire wear, or steering change if a joint or bushing is worn

    How to Fix

    Record when the noise occurs and reproduce it safely on a controlled road test. With the vehicle supported according to the factory procedure, inspect wheel and tire security, brake hardware, steering linkage, stabilizer links and bushings, control-arm bushings, upper and lower ball joints, shocks and mounts, wheel bearings, subframe attachment, and nearby shields or loose hardware. Check joints and bushings in the loaded and unloaded positions specified by the service manual, and use chassis ears or controlled isolation when visual play is not obvious. If steering looseness, wheel movement, instability, or a damaged joint is present, stop driving until repaired. Replace only the confirmed failed component using the VIN, side, suspension sales code, and current supersession; torque at the specified ride-height condition and perform an alignment when the repair procedure requires it.

    Owner tips & cautions

    • WarningDo not assume a sway-bar link or control arm from the sound alone. Steering looseness, wheel movement, or a damaged ball joint requires immediate inspection before more driving.
    • TipAsk the shop to identify the exact failed joint or bushing, side, and suspension sales code and to show the measured play or isolated noise before parts are ordered.

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    On the 2011-2021 Jeep Grand Cherokee, front wheel hub/bearing assemblies are a recurring wear failure on the WK2 Grand Cherokee, producing a humming, whining, or growling noise that rises with road speed (commonly noticeable from about 35-50 mph) and often changes pitch when the vehicle is loaded or steered left/right. The integrated hub/bearing units wear relatively early, and owners frequently report needing replacement on one or both front corners. Left unaddressed the bearing can develop play and eventually trigger ABS/traction warnings or, in severe cases, lead to hub damage.

    Common Symptoms

    • Humming/whining/growling that increases with speed
    • Noise changes pitch when turning left or right
    • Vibration felt through floor/steering at highway speed
    • Possible ABS or traction-control light if bearing develops play

    How to Fix

    Confirm the failing corner by listening for the speed-dependent hum and checking for bearing play; the noise typically worsens when turning toward the good side. Replace the affected front hub/bearing assembly (sold as a complete unit). Replacing in pairs is common when both have similar mileage. Verify ABS sensor function after replacement.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar complete front hub and bearing assembly
      OEMMopar 52124767AE

      Confirm VIN/platform and the failed corner; not for a new-body WL.

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$200 - $750

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    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee, grand Cherokee 4x4 differentials (and the transfer case) are a known spot for pinion-seal leaks — owners find gear oil weeping where the driveshaft meets the diff, leaving puddles and, if ignored, running the diff low on lube. A low/contaminated differential then produces a speed-related whine or howl (rising on acceleration or deceleration depending on which gear/bearing is loaded). RepairPal documents many pinion-seal/transfer-case leak cases on the platform. A caution: careless seal replacement (over-torquing the pinion nut and crushing the collapsible spacer) destroys pinion-bearing preload, so the repair must be done correctly.

    Common Symptoms

    • Gear-oil puddle/residue at the driveshaft-to-differential joint
    • Speed-dependent whine or howl from front or rear axle
    • Whine changes on acceleration vs deceleration
    • Low differential fluid level
    • Metal glitter on the diff fill plug (advanced wear)
    • Transfer-case output seal also weeping

    How to Fix

    Inspect the front and rear diff pinion flanges and transfer-case output for gear-oil weepage; confirm fluid level. Replace the leaking pinion seal, marking pinion-nut position/turns to preserve preload (or setting new preload with a fresh crush sleeve) to avoid bearing damage. If gear whine is already present from prior low-lube running, evaluate the ring/pinion and bearings and refill with the correct spec gear oil. Address any transfer-case seal leaks at the same time.

    Typical repair cost:$150 - $900

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    On the 2011-2021 Jeep Grand Cherokee, wK2 Grand Cherokees commonly develop a speed-dependent driveline vibration or shudder felt through the floor/seat, typically appearing around 45-75 mph and often worse under light acceleration or on deceleration. The rear driveshaft uses CV-style joints and a splined slip section; grease can migrate out of the slip joint and collect in the rubber accordion boot, the CV joints wear or bind, and the center support/CV angles fall out of spec, all producing the vibration. Motor and transmission mounts (which also fail on these trucks) can amplify or mimic the symptom, complicating diagnosis. Heavier V8/SRT/Trackhawk models with more torque tend to surface it sooner.

    Common Symptoms

    • Vibration or shudder felt in floor/seat at 45-75 mph
    • Worse under light throttle or when decelerating
    • Droning/humming that rises with road speed
    • Grease slung inside the driveshaft boot area
    • Clunk on takeoff if joints are worn
    • Vibration reduced after mount replacement (partial cause)

    How to Fix

    Diagnose by roadtest and by inspecting the rear propshaft: clean redistributed grease out of the slip-joint boot and re-grease the slip yoke, check CV joints for play/binding, and verify driveshaft/pinion angles and center bearing condition. Rebalance or replace the rear driveshaft assembly if joints are worn. Confirm engine and transmission mounts are not collapsed (a frequent contributor). Replacing a worn rear driveshaft or reconditioning the slip joint typically resolves it.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar rear drive-shaft assembly for the 230-mm DR1 branch
      OEMMopar 52123627AC (replaces 52123627AA/AB)

      Complete-shaft replacement after inspection confirms a non-serviceable joint, tube or balance/runout fault in the exact branch Fitment/availability: The live OEM page supersedes 52123627AA to 52123627AC. Confirm VIN, 3.6L/5.7L applicatio…

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$100 - $1,200

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    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2021 Jeep Grand Cherokee, grand Cherokees with the two-speed Quadra-Trac II / Quadra-Drive II transfer cases throw a 'Service 4WD System' message when the transfer-case shift actuator motor (or the transfer-case control module) fails, leaving the vehicle unable to engage Low range or Neutral and sometimes producing a grinding noise. Owners and shops report it is difficult to diagnose: replacing the actuator motor does not always fix it, and some vehicles ultimately need a transfer case. Codes such as C140F are associated with the actuator failure. It is a high-demand complaint because the warning is alarming and the off-road/low-range function is lost.

    Common Symptoms

    • 'Service 4WD System' warning message
    • Cannot engage 4-Low or Neutral
    • Grinding or clicking noise from the transfer case
    • 4WD inoperative
    • C140F / transfer-case actuator fault codes

    How to Fix

    Scan for transfer-case actuator/control codes (e.g., C140F) before parts replacement. The shift motor is accessible after removing the belly skid guards (four bolts and a connector) and is the first replacement; if the fault persists, test the transfer case control module and wiring, and inspect the actuator's internal encoder ring/case for damage before condemning the whole transfer case. Verify any applicable recall coverage tied to the fault code.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar transfer-case gear motor 68071235AC
      OEMMopar 68071235AC

      Actuator replacement only after scan data and commanded testing confirm a motor or encoder failure Fitment/availability: Cataloged for 2011-2022 Grand Cherokee applications. Confirm VIN, transfer-case sales code and connector before purc…

      MoparPartsGiant
    • Genuine Mopar transfer-case control module 4854747AD
      OEMMopar 4854747AD

      Control-module replacement only after circuit and network diagnosis condemns the module Fitment/availability: The live catalog limits this part number to specified 2012-2013 applications and requires VIN confirmation. Do not apply it to …

      Mopar Online Parts

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    Typical repair cost:$200 - $2,500

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    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee, on WK2 Grand Cherokees the sunroof/panoramic roof drain tubes kink, slip off, or clog with debris and slime at the lower reducer fittings. When the drains back up, water overflows the roof track and runs down the A-pillars into the headliner and floor, soaking carpet and risking mold and electrical module corrosion. The lower hose hidden near the driver kick panel is a frequent partial-clog point.

    Common Symptoms

    • Water dripping from the headliner or A-pillars after rain or a car wash
    • Wet front or rear floor carpet
    • Musty / mildew smell inside the cabin
    • Water pooling in footwells
    • Fogged windows or intermittent electrical faults from moisture

    How to Fix

    Clear the front and rear drain tubes with low-pressure compressed air or a flexible line (avoid high pressure, which can pop the tube off the roof). Re-seat or replace cracked/disconnected tubes; some require partial headliner removal. Dry the carpet/underlayment fully to prevent mold and protect floor electronics.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar 2011-2013 GWJ rear-left panoramic-roof drain hose
      OEMMopar 68069325AB

      Rear-left hose replacement after a confirmed crack, kink or failed connection on an early-WK2 panoramic roof Fitment/availability: 68069325AB replaces AA and is the rear driver-side branch for 2011-2013 Grand Cherokee; confirm GWJ panora…

      MoparPartsGiant
    • Genuine Mopar 2011-2013 GWJ rear-right panoramic-roof drain hose
      OEMMopar 68069324AB

      Rear-right hose replacement after a confirmed crack, kink or failed connection on an early-WK2 panoramic roof Fitment/availability: 68069324AB replaces AA and is the rear passenger-side branch for 2011-2013 Grand Cherokee; confirm GWJ pa…

      MoparPartsGiant
    • Genuine Mopar 2014-2015 front-right sunroof drain hose
      OEMMopar 68243620AA

      Front-right hose replacement after damage is confirmed in the 2014-2015 branch Fitment/availability: 68243620AA is the passenger-side front hose for cataloged 2014-2015 Grand Cherokee applications and replaces 68175016AB. Confirm roof op…

      MoparPartsGiant
    • Genuine Mopar 2014-2021 GWJ rear-left panoramic-roof drain hose
      OEMMopar 68175021AA

      Rear-left hose replacement after damage is confirmed on the later-WK2 panoramic roof Fitment/availability: 68175021AA is the rear driver-side GWJ branch for cataloged 2014-2021 Grand Cherokee. Confirm panoramic roof code and VIN; GWA sin…

      MoparPartsGiant
    • Genuine Mopar 2014-2021 GWJ rear-right panoramic-roof drain hose
      OEMMopar 68175020AA

      Rear-right hose replacement after damage is confirmed on the later-WK2 panoramic roof Fitment/availability: 68175020AA is the rear passenger-side GWJ branch for cataloged 2014-2021 Grand Cherokee. Confirm panoramic roof code and VIN; GWA…

      MoparPartsGiant
    • Genuine Mopar 2016-2021 front-left sunroof drain hose
      OEMMopar 68251825AB (replaces 68251825AA)

      Front-left hose replacement after damage is confirmed in the 2016-2021 branch Fitment/availability: 68251825AA supersedes to AB and is the driver-side front hose for cataloged 2016-2021 Grand Cherokee. Confirm roof option, side and VIN; …

      MoparPartsGiant
    • Genuine Mopar 2016-2021 front-right sunroof drain hose
      OEMMopar 68251824AA

      Front-right hose replacement after damage is confirmed in the 2016-2021 branch Fitment/availability: 68251824AA is the passenger-side front hose for cataloged 2016-2021 Grand Cherokee. Confirm roof option, side and VIN; it is not the 201…

      MoparPartsGiant

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    Typical repair cost:$0 - $400

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    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026

    On the 2021-2023 Jeep Grand Cherokee, on 5th-gen WL Grand Cherokee and Grand Cherokee L with the dual-pane panoramic sunroof, water can leak into the headliner and A-pillar areas. Chrysler issued TSB 23-102-23 for 2021-2023 units built on or before Feb 6, 2023, identifying the wind deflector assembly as a cause: it can trap the sunroof panel and create a poor seal. Clogged front/rear sunroof drain channels are a second common cause, allowing water to seep into the headliner and pillars and potentially reach electrical components. A related TSB (23-035-21) addresses sunroof rattle from loose mounting fasteners on early 2021 builds.

    Common Symptoms

    • water dripping from headliner or A-pillar
    • wet headliner/carpet after rain or car wash
    • musty smell
    • sunroof rattle on rough roads

    How to Fix

    Per TSB 23-102-23, have the dealer replace the wind deflector assembly with the updated part. Independently, clear the front and rear sunroof drain tubes of debris to restore drainage. For sunroof rattle on early builds, TSB 23-035-21 replaces the sunroof mounting fasteners. Address leaks promptly to avoid wet headliner, mold, and corrosion of nearby electrical connectors.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar updated dual-pane panoramic sunroof wind deflector
      OEMMopar 68518680AC

      TSB 23-102-23 repair after confirming the trapped-deflector leak on an in-scope WL with GWJ Fitment/availability: 68518680AC supersedes AA/AB. Confirm WL platform, February 6 2023 build cutoff, GWJ sales code, trapped-deflector condition…

      eBay

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    Owner tips & cautions

    • WarningThis part is not a universal sunroof-leak fix. Confirm the WL platform, build cutoff, GWJ sales code, and trapped-deflector condition first.
    • TipAfter replacement, cycle the roof and repeat the same controlled water test before the headliner and trim are fully closed.
    Typical repair cost:$100 - $500

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    High ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee, water found in a WK2 Grand Cherokee cargo well, under the cargo floor, or near a rear pillar is a symptom, not proof that one grommet, weatherstrip, lamp gasket, antenna seal, or roof seam has failed. The factory water-leak procedure warns that water can travel through body cavities and appear far from the true entry point. The old card's shopping list could therefore send an owner to four unrelated products before the leak location was established.

    Common Symptoms

    • Standing water or dampness in the rear cargo area
    • Wet cargo carpet or insulation after rain or washing
    • Water track near a rear pillar, liftgate opening, or cargo trim
    • Musty odor or interior condensation

    How to Fix

    Dry the accessible area enough to see a new water track, protect affected electrical connectors and modules, and reproduce the conditions under which the leak occurs. Follow the factory water-leak procedure: visually inspect plugs, drains, alignment, seams, seals, and grommets; test one region at a time with an appropriate low-pressure stream or fan spray; remove trim only as needed for safe visual access; and trace the highest fresh water track to its actual entry point. Repair, reseat, or replace only the confirmed failed seal, seam, fastener, drain, weatherstrip, glass bond, lamp seal, or wiring pass-through using the current factory procedure and specified material. Dry wet insulation, inspect exposed terminals for corrosion, and repeat the water test before closing the trim. Do not smear generic RTV across several unconfirmed paths.

    Owner tips & cautions

    • WarningThe puddle location may not be the entry location. Do not buy a grommet, weatherstrip, sealant, or lamp seal until a controlled water test identifies the source.
    • TipPhotograph the first fresh water track during the test and retest after the repair before reinstalling all wet trim and insulation.

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    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2021 Jeep Grand Cherokee 3.6L Pentastar V6, on the WK2 Jeep Grand Cherokee with the 3.6L Pentastar V6, P0171 (and frequently P0174 alongside it) is most commonly triggered by unmetered air entering the engine through a deteriorated intake manifold gasket or a cracked/warped plastic intake manifold. The Pentastar's rubber-and-plastic gaskets become brittle from years of heat cycling and crack, letting in extra air so the upstream O2 sensors report a persistent lean condition. A closely related contributor is the notorious oil filter housing/oil cooler adapter in the engine valley (under the intake manifold) cracking, which is usually addressed at the same time since the intake has to come off. Some early cases are resolved with a PCM software update before parts are replaced.

    Common Symptoms

    • Check engine light on
    • Rough or shaky idle
    • Hissing/whistling sound from engine bay
    • Slight loss of power or hesitation
    • Occasional stalling at idle

    How to Fix

    Smoke-test the intake to confirm the vacuum leak, then replace the intake manifold gasket set (and the plastic intake manifold itself if cracked/warped). Because access requires removing the intake, shops commonly replace the leak-prone oil filter housing at the same time. Check for any available PCM software update first, and verify fuel trims return to normal after the repair.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar complete upper-and-lower intake-manifold gasket kit for the 3.6L branch
      OEMMopar 68535427AA

      Seal replacement after smoke testing confirms leakage at a compatible 3.6L intake-manifold joint Fitment/availability: Mopar 68535427AA is sold as a 12-piece kit containing six upper and six lower seals and is cataloged for the audited 2…

      Mopar Original Parts

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    Typical repair cost:$150 - $1,000

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    High ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2021 Jeep Grand Cherokee, the WK2 uses a saddle-style fuel tank with two fuel-level senders (one per lobe). The sender floats/rheostats stick or wear, and the PCM flags a sender that no longer tracks fuel consumption, setting P2068 (or related P0461/P0463) and a 'Service Fuel Level Sensor' message. Symptoms include a gauge stuck on Full or Empty, wildly bouncing readings, and an inaccurate Distance-to-Empty. It usually doesn't affect running but can strand an owner who trusts a stuck-full gauge, and it commonly requires dropping the tank to access the sender/module.

    Common Symptoms

    • Fuel gauge stuck on Full or Empty
    • Gauge reading bounces or drops erratically
    • 'Service Fuel Level Sensor' warning message
    • Inaccurate Distance-to-Empty / range readout
    • P2068 or related fuel-level codes
    • Gauge slow to rise after fill-up

    How to Fix

    Scan for P2068/P0461/P0463 and confirm which sender is faulty. Inspect the sender for a stuck float and check connector/wiring; some intermittent stuck floats free up, but a failed sender requires replacement of the affected fuel-level sensor/sender module (often the in-tank pump/sender assembly), which typically means lowering the fuel tank. Recalibrate/verify gauge sweep after repair.

    Typical repair cost:$200 - $600

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    On the 2011-2021 Jeep Grand Cherokee, wK2 Grand Cherokees use a capless (Easy Fuel) filler neck with a spring-loaded flapper door and an internal one-way check valve. Over time the flapper mechanism sticks or fails to seal, and the check valve at the tank inlet can hang up, causing the fuel pump nozzle to click off repeatedly and refuse to fill the tank — the classic 'won't take gas' complaint, often worse with modern ORVR pump nozzles. FCA revised the filler-neck part number multiple times, indicating a recognized design weakness. Beyond the fueling nuisance, a poorly sealing filler can contribute to EVAP (P0455/P0456) complaints.

    Common Symptoms

    • Fuel pump nozzle clicks off after a few seconds
    • Tank very slow to fill or won't accept fuel
    • Fuel splashback at the filler
    • Broken or stuck flapper door in the filler
    • Occasional EVAP check-engine light (P0455/P0456)
    • Must trickle-fill to top off the tank

    How to Fix

    Inspect the capless filler neck flapper and internal check valve; clean debris and verify the flapper closes/seals. If it sticks or the nozzle keeps clicking off, replace the capless fuel filler neck with the latest revised part. As a temporary field workaround owners report inserting the nozzle more slowly (or gently holding the flapper open) — but the durable fix is filler-neck replacement. Rule out a plugged EVAP/vent restriction if fill problems persist after replacement.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar fuel tank filler tube for ERC/EZH bulletin branch
      OEMMopar 68377769AE

      The TSB's engine-code and year branch controls; verify VIN/current supersession.

      MoparPartsGiant
    • Genuine Mopar fuel tank filler tube for ESG/ESD bulletin branch
      OEMMopar 68250911AN

      The live listing is genuine/new; use the TSB and VIN/engine sales code rather than its broader compatibility table.

      eBay

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    Owner tips & cautions

    • WarningDo not order by the symptom alone. FCA requires the other hard-to-fill diagnostics first, and the correct tube changes with engine sales code and model year.
    • TipHave the seller or installer verify the VIN, engine sales code, and current Mopar supersession before the order is placed.
    Typical repair cost:$80 - $350

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026
    Community reported
    680 owners

    On the 2011-2021 Jeep Grand Cherokee 3.6L Pentastar V6, the water pump on the 3.6L Pentastar V6 can fail, causing coolant leaks and overheating. The pump is internal and driven by the timing chain, making replacement labor-intensive. Failure often occurs between 80,000-120,000 miles.

    This issue also affects: Alfa Romeo Giulia

    Common Symptoms

    • Coolant leak
    • Overheating engine
    • Low coolant warning
    • White residue on engine
    • Sweet coolant smell

    How to Fix

    Replace water pump when symptoms appear or preventatively during timing chain service. Replace thermostat at same time. Consider replacing timing chain tensioners and guides if high mileage. Ensure proper cooling system bleeding after repair.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Crown 5184498AI external water pump for early WK2 3.6L
      OEMCrown 5184498AI

      Early-branch pump replacement after a confirmed external water-pump failure Fitment/availability: The exact page identifies 5184498AI for 2011-2015 WK2 3.6L applications. Confirm VIN, build and current OE supersession; do not infer fit f…

      Quadratec
    • Genuine Mopar 68311108AF external water pump for later WK2 3.6L
      OEMMopar 68311108AF

      Later-branch pump replacement after a confirmed external water-pump failure Fitment/availability: The live catalog covers 2016-2025 Grand Cherokee 3.6L applications. Confirm VIN, ESS equipment/build and current supersession before purcha…

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • TipReplace water pump when symptoms appear or preventatively during timing chain service.
    • TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
    • TipSearch Jeep Grand Cherokee forums and owner groups for real-world experiences and DIY guides
    • TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
    Typical repair cost:$800 - $1,800

    Research This Issue

    Based on 680 owner reports

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    Community Reported
    High Confidence680 owner reportsLast reported by owners Feb 2024Reviewed Feb 2026

    On the 2011-2021 Jeep Grand Cherokee 3.6L Pentastar V6, the integrated plastic-housing thermostat on the 3.6L Pentastar commonly fails stuck open or opens too early, so the engine never fully reaches operating temperature. The ECM sets P0128 (coolant temp below thermostat regulating temperature), and the driver gets weak cabin heat, sluggish warm-up, lower fuel economy, and increased oil contamination. It is one of the most frequently searched check-engine complaints on these engines and is an inexpensive, DIY-friendly fix.

    Common Symptoms

    • P0128 check-engine code
    • Weak or slow-to-warm cabin heat
    • Temperature gauge slow to rise or reads low
    • Reduced fuel economy
    • Engine takes long time to warm up in cold weather

    How to Fix

    Replace the thermostat (integrated into the Mopar thermostat housing, e.g. 5184651AH-family for 3.6L) using an OEM-grade unit, then properly bleed all air from the cooling system via the bleeder. Verify the coolant temperature sensor and confirm correct coolant level before condemning the thermostat. Clear P0128 and confirm the engine reaches full temp over a few drive cycles.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar integrated thermostat-and-housing assembly for the WK2 3.6L
      OEMMopar 5184651AJ (replaces 5184651AH/AI)

      Thermostat-housing replacement after temperature-data diagnosis confirms a thermostat or housing fault Fitment/availability: 5184651AH is replaced by 5184651AJ and the live Jeep catalog covers the audited 2011-2021 WK2 3.6L branch. Confi…

      MoparPartsGiant
    • Genuine Mopar 5-year HOAT antifreeze/coolant concentrate
      OEMMopar 68048953AC

      Confirm chemistry and calculate concentrate/distilled-water quantity; do not mix it with OAT or pour concentra

      MoparPartsGiant
    • Genuine Mopar 10-year OAT 50/50 premixed antifreeze/coolant
      OEMMopar 68163849AC

      Confirm the exact vehicle chemistry; do not add water to premix or mix it with HOAT.

      Mopar-Direct

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$60 - $350

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2005-2021 Jeep Grand Cherokee, because the A/C condenser sits at the very front of the Grand Cherokee behind the grille, it is highly exposed to rocks and road debris, which puncture the thin tubes and cause refrigerant loss. Condenser leaks are one of the leading causes of an A/C that blows lukewarm or no cold air; as refrigerant escapes, the system's pressure sensor will eventually disable the compressor to protect it. Owners commonly chase recharges that don't hold before the leaking condenser is identified.

    Common Symptoms

    • A/C blows warm or only slightly cool air
    • Cooling that works briefly then fades (slow leak)
    • Compressor not engaging due to low-pressure lockout
    • Refrigerant recharge that doesn't last
    • Visible oily residue/dye at the condenser

    How to Fix

    Perform a dye or electronic leak test to confirm the condenser as the leak point. A leaking condenser cannot be repaired and must be replaced, followed by an evacuation, vacuum, and recharge with the correct refrigerant/oil. Replace the receiver/drier as part of the job. Address any debris damage to prevent recurrence.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • DENSO A/C condenser for compatible 2005-2010 WK applications
      OEMDENSO 477-0800

      Condenser replacement after a technician confirms the condenser itself leaks on a matching 2005-2010 WK Fitment/availability: DENSO 477-0800 is catalog-confirmed at an audited 2008 endpoint and the live listing provides 2005-2010 Grand C…

      eBay
    • DENSO A/C condenser for compatible 2011-2021 WK/WK2 applications
      OEMDENSO 477-0810

      Condenser replacement after a technician confirms the condenser itself leaks on a matching 2011-2021 WK/WK2 Fitment/availability: DENSO 477-0810 is catalog-confirmed at audited 2015, 2020 and 2021 endpoints and the live listing supplies …

      eBay

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningDo not buy a condenser because the A/C is warm or because a recharge leaked down. The exact leak location and any separate control or air-door fault must be proven first.
    • WarningAvoid stop-leak products. FCA warns they can contaminate the system and damage recovery, evacuation, and charging equipment.
    Typical repair cost:$400 - $1,200

    Research This Issue

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 2005-2021 Jeep Grand Cherokee, grand Cherokees develop heater-core problems from two directions: internal clogging (residual casting sand/scale restricting the fine tubes, producing weak or no heat) and leaks at the core or its plastic firewall inlet/outlet elbows (producing a sweet coolant smell, a greasy fog film on the inside of the windshield, and a damp passenger-side floor). A leaking core also slowly loses coolant and can lead to overheating. The repair is labor-intensive because the dash must be removed to reach the core buried in the HVAC housing, so misdiagnosis is costly.

    Common Symptoms

    • Sweet/syrupy coolant smell inside the cabin
    • Greasy fog film on inside of windshield
    • Damp or wet front passenger floor carpet
    • Little or no heat from the vents
    • Unexplained slow coolant loss
    • Windows fog and won't clear with defrost

    How to Fix

    Confirm the diagnosis: sweet smell + foggy windshield + wet passenger carpet = leaking core; cold-only output with good coolant flow points to a clogged core (attempt a back-flush first). Pressure-test the cooling system and inspect the plastic heater pipes/elbows at the firewall, which can be replaced separately if that's the leak point. If the core itself leaks or is clogged, replace the heater core (dash-out labor). Refill and bleed the cooling system afterward and verify heat and no coolant loss.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Crown Automotive heater core for 2005-2010 WK
      OEMCrown Automotive 5143101AA

      Heater-core replacement after the core itself is confirmed leaking or irreversibly restricted on a 2005-2010 WK Fitment/availability: Crown 5143101AA is explicitly sold for 2005-2010 Grand Cherokee WK. Confirm VIN, main/front HVAC config…

      Quadratec
    • Genuine Mopar heater core for 2011-2021 WK2
      OEMMopar 68079484AA

      Heater-core replacement after the core itself is confirmed leaking or irreversibly restricted on a 2011-2021 WK2 Fitment/availability: 68079484AA is cataloged for 2011-2022 WK/WK2 3.0L diesel, 3.6L, 5.7L, 6.2L and 6.4L and includes screw…

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$300 - $1,800

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2005-2021 Jeep Grand Cherokee, the Jeep Grand Cherokee uses a Natural Vacuum Leak Detection (NVLD) approach for its EVAP system, implemented through the Evaporative System Integrity Module (ESIM) — commonly called the leak detection pump. The ESIM is a standalone unit (typically mounted on the charcoal canister near the rear driver-side wheel well) that seals the fresh-air vent and uses natural temperature-induced pressure changes to verify the fuel-vapor system holds vacuum. The internal seal/diaphragm and check mechanism in the ESIM are a well-documented common failure point on Chrysler/Jeep platforms. When the unit fails, the PCM cannot complete its EVAP self-test and falsely reports an EVAP leak, illuminating the check engine light even though no actual leak exists. Because the same codes are thrown by a loose or worn gas cap, the failure is frequently misdiagnosed: owners (and even shops) replace the gas cap first, the light returns, and the actual ESIM/leak-detection-pump fault is missed. A simple field test is to remove the ESIM and shake it — a rattle indicates the internal valve has come loose and the unit needs replacement. Note that the EVAP purge-valve hose on top of the engine also becomes brittle and cracks (covered by Jeep TSBs #25-002-15 REV-B and #18-035-20), producing the same codes, so the hose should be inspected before condemning the ESIM. This is an emissions-only fault: it does not harm the engine or transmission but will fail a state emissions/smog test.

    Common Symptoms

    • Check engine light on (often intermittent, may clear and return)
    • OBD-II scan shows P0456 (small EVAP leak), P0455 (large EVAP leak), or P0457 (loose fuel cap / large leak)
    • "Check Fuel Cap" / gas cap warning message
    • Fuel/gasoline odor near the vehicle in some cases
    • Failed state emissions or smog test
    • Light returns shortly after a gas cap replacement (sign of misdiagnosis)
    • Occasional slightly extended cranking
    • ESIM rattles when removed and shaken (failed internal valve)

    How to Fix

    Diagnose before replacing parts. (1) Inspect/re-tighten or replace the gas cap and confirm it clicks and seals — rule out the cheapest cause first. (2) Visually inspect the thin plastic EVAP purge-valve hose on top of the engine for cracks/splits (especially at connection points) per TSB #25-002-15 REV-B; replace if brittle/cracked — this alone fixes many cases. (3) Locate the ESIM/leak detection pump (on the charcoal canister near the rear driver-side wheel well); remove and shake it — if it rattles, the internal valve has failed and the module must be replaced. Replacement is a straightforward DIY: a new ESIM (OEM, or aftermarket such as Dorman 310-219) installs in place of the old one. After replacement, clear the codes and complete a few drive/fill cycles to confirm the EVAP monitor passes and the light stays off. If codes persist after ESIM and hose service, smoke-test the EVAP system to find a remaining leak (canister, lines, or fuel-tank-side seals).

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar purge hose for the 3.6L ERB bulletin branch
      OEMMopar 68189075AE

      A repair after a split hose is confirmed on an in-window 2015 WK 3.6L ERB Fitment/availability: 68189075AE supersedes AC/AD and is cataloged for 2014-2015 Grand Cherokee 3.6L.

      MoparPartsGiant
    • Genuine Mopar purge hose for the 5.7L EZH bulletin branch
      OEMMopar 68189065AD

      A repair after a split hose is confirmed on an in-window 2015 WK 5.7L EZH Fitment/availability: 68189065AD supersedes AB/AC and is cataloged for 2014-2015 Grand Cherokee 5.7L.

      MoparPartsGiant

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningP0455/P0456 does not identify an ESIM, gas cap, canister, or hose by itself. Match the build window and inspect or smoke-test the system before buying a part.
    • TipUse the VIN and engine sales code to distinguish the 3.6L and 5.7L purge hoses before ordering.
    Typical repair cost:$20 - $350

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    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026

    On the 2011-2021 Jeep Grand Cherokee, p0442 (small EVAP leak, roughly a 0.020–0.040 inch pinhole) is very common on the WK2 Grand Cherokee. The two dominant causes are a degraded gas cap rubber seal and, specific to this platform, a failed Evaporative System Integrity Module (ESIM) mounted in the rear driver-side wheel well. The ESIM is a well-documented WK2 failure point and often fails before other EVAP components; it is known to pass a smoke test yet still set the code because its internal switch fails to report the correct state to the PCM. A vapor canister purge valve stuck slightly open is a secondary cause. There are typically no drivability symptoms beyond the check engine light, and the code can be intermittent (may clear after a few good drive cycles once the cap is tightened).

    Common Symptoms

    • Check engine light on
    • Intermittent fuel/vapor smell (rare)
    • No noticeable drivability change
    • Occasional gas cap warning

    How to Fix

    Start with a new OEM Mopar gas cap and confirm it clicks/seals; clear the code and drive several cycles. If it returns, replace the ESIM in the rear driver-side wheel well (accessed behind the fender liner, on the charcoal canister). If still present, smoke-test the EVAP system to find hose/purge-valve/canister leaks.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar evaporative-system integrity module (ESIM) for the confirmed 2016-2018 branch
      OEMMopar 68505622AA

      Confirm the VIN, fuel-system configuration, connector and current part before purchase; it is not approved across the ful

      FinditParts

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$25 - $350

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    Community Reported
    High ConfidenceVerifiedReviewed Jul 2026
    Community reported
    750 owners

    On the 2014-2021 Jeep Grand Cherokee, the ZF 8HP 8-speed automatic transmission can exhibit harsh shifts, hesitation, or erratic behavior. Some owners report the transmission hunting between gears or feeling like it's in the wrong gear for the driving conditions.

    Common Symptoms

    • Harsh or jerky shifts
    • Transmission hunting between gears
    • Delayed engagement from Park
    • Rough downshifts
    • Feels sluggish to respond

    How to Fix

    Update transmission software to latest calibration. Perform fluid change with ZF-approved ATF. Adaptive learning reset may improve shift quality. If issues persist, valve body inspection or replacement may be needed.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar 8 & 9 Speed ATF 68218925AB
      OEMMopar 68218925AB

      Confirm the transmission service information, required quantity and fill-temperature procedure; never substitute ATF+4 or use this as authorization for a flus

      FORTLUFT Auto Parts
    • Crown 52854834AB 845RE/850RE transmission pan-and-filter assembly
      OEMCrown 52854834AB

      Integrated pan/filter replacement for the confirmed 845RE or 850RE branch during a proper service Fitment/availability: Crown catalogs 52854834AB for 2014-2021 WK2 845RE and 2017-2022 850RE applications. Confirm transmission code and VIN…

      CarParts.com
    • Genuine Mopar 68225344AA 8HP70/8HP75 transmission pan-and-filter assembly
      OEMMopar 68225344AA

      Integrated pan/filter replacement for the confirmed 8HP70/8HP75 branch during a proper service Fitment/availability: The Jeep catalog associates this pan/filter family with specified 3.0L diesel, 5.7L and 6.4L applications. Confirm VIN a…

      Mopar Genuine Parts

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
    • TipSearch Jeep Grand Cherokee forums and owner groups for real-world experiences and DIY guides
    • TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
    Typical repair cost:$150 - $2,500

    Research This Issue

    Based on 750 owner reports

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    Community Reported
    High Confidence750 owner reportsLast reported by owners Feb 2024Reviewed Feb 2026

    On the 2021-2023 Jeep Grand Cherokee, fCA US recalled 2021-2023 Jeep Grand Cherokee L and 2022-2023 Jeep Grand Cherokee models because software in the Central Vision Park Assist Module (CVPAM) may keep the rearview image from displaying when the vehicle is shifted into reverse. With no rear camera image on the center screen, the Grand Cherokee does not meet Federal Motor Vehicle Safety Standard 111, "Rear Visibility." NHTSA's consequence statement is direct: a rearview image that does not display while reversing reduces what the driver can see behind the vehicle and increases the risk of injury or a crash. The campaign as a whole covers 162,713 vehicles across all of the Jeep models included; that figure is campaign-wide and is not a count for the Grand Cherokee alone. FCA's internal recall number is 56A, and owner notification letters went out August 31, 2023.

    Common Symptoms

    • Rearview camera image does not appear on the screen when the vehicle is shifted into reverse

    How to Fix

    The repair is a free software update to the Central Vision Park Assist Module, performed by a Jeep dealer. There is no charge for parts or labor. If you did not receive the notification letter mailed August 31, 2023, enter your VIN at nhtsa.gov/recalls to see whether your Grand Cherokee is still open for recall 23V577000, then schedule the CVPAM reflash with any Jeep dealer. FCA US customer service can be reached at 1-800-853-1403; the manufacturer's number for this recall is 56A.

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    Community Reported
    High ConfidenceVerifiedReviewed Aug 2026

    On the 2011-2023 Jeep Grand Cherokee, owners of panoramic-sunroof-equipped Grand Cherokees (WK2 and 5th-gen WL) report the glass panel spontaneously shattering or 'exploding' with a loud pop while driving on clear days, with no impact. NHTSA complaints and forum reports describe the tempered panel bursting outward/inward, sometimes at low mileage. Suspected causes include factory pre-stress in the tempered glass, ceramic-frit edge stress, thermal cycling, and frame/mechanism stress on the panel. Beyond the repair cost, flying glass and startle-factor while driving make it a safety concern; owners frequently struggle to get warranty coverage and pay out of pocket.

    Common Symptoms

    • Loud pop/bang followed by shattered sunroof glass
    • Spider-cracked or collapsed panoramic panel with no impact
    • Glass falling into cabin (often caught by sunshade)
    • Occurs at speed on clear days
    • Wind noise/water entry after the panel breaks
    • Sudden startle event while driving

    How to Fix

    There is no preventive repair — the panel must be replaced with new tempered glass (dealer or auto-glass shop), and owners should verify the sunroof frame/track and drains are correct so the replacement isn't re-stressed. Document the event and file an NHTSA complaint (helps trigger any future investigation/coverage) and check comprehensive insurance, which often covers glass with low/no deductible. Retain any FCA/Stellantis goodwill-assistance option for low-mileage vehicles.

    Typical repair cost:$800 - $2,000

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2011-2021 Jeep Grand Cherokee 5.7L HEMI V8, on 5.7L HEMI-equipped Grand Cherokees, the steel bolts/studs that hold the cast-iron exhaust manifolds to the cylinder heads repeatedly heat-cycle and snap, most commonly at the rear of each manifold. The broken hardware opens a small gap that lets exhaust escape, producing a metallic 'tick' or 'tap' that is loudest on a cold start and quiets as the engine warms and the metal expands to temporarily reseal the leak. This is a well-known HEMI-wide failure (shared with Durango and Ram 1500) and is distinct from the MDS lifter 'HEMI tick.' Left unrepaired it worsens, can fail an emissions/exhaust inspection, and the broken stud ends can seize in the head and require drilling/extraction.

    Common Symptoms

    • Metallic ticking or tapping noise loudest on cold start
    • Tick quiets or disappears as engine warms up
    • Exhaust/ticking noise from the engine bay under acceleration
    • Soot or black leak marks at the manifold-to-cylinder-head joint
    • Slight exhaust smell at idle

    How to Fix

    Replace the failed manifold bolts/studs with the updated Mopar double-ended stud hardware and new exhaust manifold gaskets; many shops convert all fasteners to studs/nuts so the manifold can be torqued evenly. Use new hardware on every bolt location — heat-fatigued originals will fail again. Confirm the diagnosis by listening for a cold-start tick that fades when warm and inspecting for soot/leak tracks at the manifold-to-head flange. If a stud has broken flush, it must be drilled and extracted; in severe cases a warped manifold is resurfaced or replaced.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Genuine Mopar updated left exhaust-manifold kit
      OEMMopar 68591586AA

      Complete FCA bulletin repair after the left 5.7L manifold is visually confirmed cracked Fitment/availability: 68591586AA is the left WK/WD/WL kit named by TSB 09-019-23. Confirm VIN, EZH/EZC engine, 2019-2022 bulletin scope, side and sea…

      eBay
    • Genuine Mopar updated right exhaust-manifold kit
      OEMMopar 68591591AA

      Complete FCA bulletin repair after the right 5.7L manifold is visually confirmed cracked Fitment/availability: 68591591AA is the right WK/WD/WL kit named by TSB 09-019-23. Confirm VIN, EZH/EZC engine, 2019-2022 bulletin scope, side and c…

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Owner tips & cautions

    • WarningDo not order a manifold kit from the word 'tick' alone. FCA's procedure requires the cold-noise source and an actual manifold crack to be confirmed first.
    • TipUse every component in the updated kit. FCA specifically calls for the supplied gasket, new fasteners, heat shield, and tie bar, including the shorter 06510140AA fastener at the right-front position.
    Typical repair cost:$300 - $1,500

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026
    NHTSA Recalls39 recalls

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    Chrysler (FCA US, LLC) is recalling certain 2021-2024 Jeep Wrangler and 2022-2024 Jeep Grand Cherokee vehicles. A hybrid control processor (HCP) software error may cause the defrosting and defogging system to be inoperative. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 103, "Windshield Defrosting and Defogging Systems."

    Campaign #24V11100015/02/2024

    EXTERIOR LIGHTING:HEADLIGHTS

    Chrysler (FCA US, LLC) is recalling certain 2023-2024 Jeep Grand Cherokee and Jeep Grand Cherokee L vehicles. When the master headlight switch is set to the AUTO position, the driver may be unable to quickly activate the high beams. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

    Campaign #24V13000022/02/2024

    STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM

    Chrysler (FCA US, LLC) is recalling certain 2024 Jeep Grand Cherokee vehicles. An improperly machined steering knuckle may separate between the ball joint and knuckle, causing the wheel to fall outward and resulting in a loss of control.

    Campaign #24V13100022/02/2024

    BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

    Chrysler (FCA US, LLC) is recalling certain 2022-2023 Jeep Grand Cherokee and 2023-2024 Jeep Grand Cherokee L vehicles. An improperly connected coaxial cable may prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

    Campaign #24V28900025/04/2024

    AIR BAGS:FRONTAL

    Chrysler (FCA US, LLC) is recalling certain 2024 Jeep Grand Cherokee vehicles. The front bumper may be missing energy absorbing foam, which can cause the front air bags not to deploy as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

    Campaign #24V34600016/05/2024

    + 34 more recalls. Check all on NHTSA.gov

    Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

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    Leave your email and we'll alert you the moment there's a new recall or known issue for your Jeep Grand Cherokee. Free, no account needed.

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    Other Jeep Models

    Jeep Wrangler78Jeep Compass33Jeep Grand Wagoneer27Jeep Liberty21Jeep Cherokee20Jeep Patriot20

    Frequently Asked Questions

    What are the most common Jeep Grand Cherokee problems?

    According to Au7o's analysis of 3,920+ owner reports, the 2021 Jeep Grand Cherokee has 35 documented issues. The most frequently reported are: Loss of Steering Control: Upper Control Arm Pinch Bolt & Intermediate Shaft (Recalls 23V-352, 24V-131), 3.6L Pentastar Upgrade Rocker Arm / Intake Camshaft Lobe Wear Causing Misfire and Tick, 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts. Of these, 3 are rated critical and should be addressed promptly.

    Is the Jeep Grand Cherokee reliable?

    The 2021 Jeep Grand Cherokee has 35 known issues documented across 3,920+ owner reports. 3 issues are rated critical: Loss of Steering Control: Upper Control Arm Pinch Bolt & Intermediate Shaft (Recalls 23V-352, 24V-131) and 3.6L Pentastar Upgrade Rocker Arm / Intake Camshaft Lobe Wear Causing Misfire and Tick and 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

    How much does it cost to fix common Jeep Grand Cherokee problems?

    Repair costs for known Jeep Grand Cherokee issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Loss of Steering Control: Upper Control Arm Pinch Bolt & Intermediate Shaft (Recalls 23V-352, 24V-131), typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

    What is the 2021-2024 Jeep Grand Cherokee Loss of Steering Control: Upper Control Arm Pinch Bolt & Intermediate Shaft (Recalls 23V-352, 24V-131)?

    On the new WL-generation Grand Cherokee and Grand Cherokee L, two assembly defects can cause loss of steering control. Upper control arm (UCA) pinch bolts damaged during assembly can break and let the UCA separate from the steering knuckle, dropping the wheel outboard. Separately… Repairs typically run $0-$0. Severity: high.

    What is the 2018-2024 Jeep Grand Cherokee 3.6L Pentastar Upgrade Rocker Arm / Intake Camshaft Lobe Wear Causing Misfire and Tick?

    The updated/'Upgrade' 3.6L Pentastar V6 (used on later WK2 and the WL fifth-gen) suffers premature wear of the intake rocker-arm roller bearings and/or intake camshaft lobes, traced by TSB to a manufacturing issue. As the rocker bearing or cam lobe wears, the valve no longer open… Repairs typically run $600-$3,500. Severity: high.

    What is the 2011-2021 Jeep Grand Cherokee 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts?

    A persistent tick and cylinder misfire on a 5.7L Grand Cherokee can be consistent with valvetrain damage, but those symptoms do not identify a failed MDS lifter or worn camshaft by themselves. Exhaust-manifold leaks, ignition or injector faults, oil-pressure problems, rocker/push… Severity: high.

    What is the 2011-2021 Jeep Grand Cherokee 2011-2021 Quadra-Lift Warning or Uneven Ride Height - Diagnose Before Parts?

    Quadra-Lift is a closed, electronically controlled air-suspension system, so a Service Air Suspension message, a low corner, or a denied height change does not identify one universal failed part. The factory diagnostic path covers electrical and communication faults, fuses and vo… Severity: medium.

    What is the 2014-2021 Jeep Grand Cherokee 8-Speed Transmission Shifting Issues?

    The ZF 8HP 8-speed automatic transmission can exhibit harsh shifts, hesitation, or erratic behavior. Some owners report the transmission hunting between gears or feeling like it's in the wrong gear for the driving conditions. Repairs typically run $150-$2,500. Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee Water Pump Failure (3.6L Pentastar)?

    The water pump on the 3.6L Pentastar V6 can fail, causing coolant leaks and overheating. The pump is internal and driven by the timing chain, making replacement labor-intensive. Failure often occurs between 80,000-120,000 miles. Repairs typically run $800-$1,800. Severity: medium.

    What is the 2021-2023 Jeep Grand Cherokee Rearview/Backup Camera Image Fails to Display in Reverse (Recall 23V-577 / Campaign 56A and Follow-Ups)?

    Chrysler recalled 2022-2023 Grand Cherokee, 2021-2023 Grand Cherokee L (plus 2022-2024 Wagoneer/Grand Wagoneer) because the Central Vision Park Assist Module (CVPAM) software can prevent the rearview image from displaying when the vehicle is shifted into reverse — a non-complianc… Repairs typically run $0-$0. Severity: medium.

    What is the 2012-2021 Jeep Grand Cherokee 2012-2021 Grand Cherokee 3.6L Oil Filter Adapter Leak - Identify the Source First?

    Oil found around the Pentastar oil filter adapter does not prove that the complete adapter or oil cooler has cracked. FCA's service guidance separates several repair paths: a cap O-ring that is cut, damaged, or installed in the wrong groove; five adapter bolts that are not at the… Severity: medium.

    What is the 2011-2022 Jeep Grand Cherokee ETC Warning or Limp Mode - Read the DTC Before Buying a Throttle Body?

    The electronic-throttle-control warning lamp and reduced-power or limp mode are protective responses, not a diagnosis that the throttle body has failed. Depending on the stored DTC and application, the factory path may lead to a stuck or contaminated throttle plate, throttle moto… Severity: medium.

    What is the 2021-2023 Jeep Grand Cherokee Recall 23V577000 - Backup Camera Image May Not Appear in Reverse (CVPAM Software)?

    FCA US recalled 2021-2023 Jeep Grand Cherokee L and 2022-2023 Jeep Grand Cherokee models because software in the Central Vision Park Assist Module (CVPAM) may keep the rearview image from displaying when the vehicle is shifted into reverse. With no rear camera image on the center… Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee 2011-2021 WK2 Front-End Clunk - Isolate the Failed Joint, Link, Bushing, or Mount?

    A WK2 front-end clunk over bumps, during braking, or while steering can come from more than the sway-bar links or lower control arms named in the old card. The source can vary with loading and may involve a stabilizer link or bushing, control-arm bushing, ball joint, tie-rod end,… Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee Front/Rear Differential Pinion Seal Leak and Gear Whine (WK2 4x4)?

    Grand Cherokee 4x4 differentials (and the transfer case) are a known spot for pinion-seal leaks — owners find gear oil weeping where the driveshaft meets the diff, leaving puddles and, if ignored, running the diff low on lube. A low/contaminated differential then produces a speed… Repairs typically run $150-$900. Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee Rear Driveshaft CV Joint / Slip-Yoke Grease Migration Causing Highway-Speed Driveline Vibration (WK2)?

    WK2 Grand Cherokees commonly develop a speed-dependent driveline vibration or shudder felt through the floor/seat, typically appearing around 45-75 mph and often worse under light acceleration or on deceleration. The rear driveshaft uses CV-style joints and a splined slip section… Repairs typically run $100-$1,200. Severity: medium.

    What is the 2011-2023 Jeep Grand Cherokee Panoramic (CommandView) Sunroof Spontaneous Shattering / Explosion While Driving?

    Owners of panoramic-sunroof-equipped Grand Cherokees (WK2 and 5th-gen WL) report the glass panel spontaneously shattering or 'exploding' with a loud pop while driving on clear days, with no impact. NHTSA complaints and forum reports describe the tempered panel bursting outward/in… Repairs typically run $800-$2,000. Severity: medium.

    What is the 2011-2023 Jeep Grand Cherokee 3.6L Pentastar Plastic Oil Filter Housing / Oil-Cooler Assembly Cracks Causing Oil and Coolant Leaks?

    The 3.6L Pentastar's oil filter housing is an integrated plastic oil-cooler assembly that mounts in the valley under the intake manifold. The plastic warps and becomes brittle from repeated heat cycling — expanding and contracting at a different rate than the aluminum engine — so… Repairs typically run $400-$900. Severity: medium.

    What is the 2005-2021 Jeep Grand Cherokee A/C Condenser Refrigerant Leak Causing Warm Air and Compressor Cut-Out?

    Because the A/C condenser sits at the very front of the Grand Cherokee behind the grille, it is highly exposed to rocks and road debris, which puncture the thin tubes and cause refrigerant loss. Condenser leaks are one of the leading causes of an A/C that blows lukewarm or no col… Repairs typically run $400-$1,200. Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee Front Wheel Hub/Bearing Assembly Failure Causing Highway-Speed Humming/Whine (WK2)?

    Front wheel hub/bearing assemblies are a recurring wear failure on the WK2 Grand Cherokee, producing a humming, whining, or growling noise that rises with road speed (commonly noticeable from about 35-50 mph) and often changes pitch when the vehicle is loaded or steered left/righ… Repairs typically run $200-$750. Severity: medium.

    What is the 2005-2021 Jeep Grand Cherokee Heater Core Leak/Clog Causing Sweet Coolant Smell, Foggy Windshield and No Heat?

    Grand Cherokees develop heater-core problems from two directions: internal clogging (residual casting sand/scale restricting the fine tubes, producing weak or no heat) and leaks at the core or its plastic firewall inlet/outlet elbows (producing a sweet coolant smell, a greasy fog… Repairs typically run $300-$1,800. Severity: medium.

    What is the 2011-2023 Jeep Grand Cherokee Hydraulic (Fluid-Filled) Engine Mount Failure Causing Idle Vibration and Clunk (3.6L Pentastar, WK2/WL)?

    WK2 (and 5th-gen WL) Grand Cherokees use hydraulic fluid-filled engine mounts. The mounts commonly fail — the internal fluid leaks out (visible reddish-brown residue on the subframe) and the rubber degrades — producing a pronounced vibration felt through the steering wheel, seat,… Repairs typically run $300-$950. Severity: medium.

    What is the 2011-2021 Jeep Grand Cherokee Sunroof / Panoramic Roof Drain Tube Clog Causing Interior Water Leak?

    On WK2 Grand Cherokees the sunroof/panoramic roof drain tubes kink, slip off, or clog with debris and slime at the lower reducer fittings. When the drains back up, water overflows the roof track and runs down the A-pillars into the headliner and floor, soaking carpet and risking… Repairs typically run $0-$400. Severity: medium.

    Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

    Data sourced from 3,920+ owner reports, NHTSA recalls, TSBs, and automotive forums.