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Jeep · Known Issues

2005 Jeep Grand Cherokee Problems: 9 Known Issues

2005 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2005 Jeep Grand Cherokee has 9 documented known issues, with 3 rated critical. The most serious are W5A580 (NAG1) 5-Speed Automatic Limp Mode and Harsh Shift from Conductor-Plate Speed Sensors and Fluid Contamination ($300-$3,500 repair), 1999-2010 Airbag Light Plus Horn or Wheel-Control Faults - Scan SRS First and Ignition Switch / Lock Cylinder Wear Causing Key Stuck and Unexpected Engine Shut-Off (Recall P41 / NHTSA 14V-438, 2005-2007 WK) ($0-$400 repair). 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 Transmission1
  • Grand Cherokee Safety/Recalls1
  • Grand Cherokee Electrical1
  • Grand Cherokee HVAC2
  • Grand Cherokee Interior1
  • Grand Cherokee Engine1
  • Grand Cherokee Brakes1
  • Grand Cherokee Emissions1
  • Recalls27
  • FAQ
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In This Article

  • Transmission1
  • Safety/Recalls1
  • Electrical1
  • HVAC2
Interior
1
  • Engine1
  • Brakes1
  • Emissions1
  • Recalls27
  • FAQ
  • All 9 Known Issues

    Filter:
    ALL YEARS202620252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994

    When Issues Typically Appear

    Front Brake Rotor Warping / Pulsation and Premature Brake Wear
    20K-90K
    Blend Door / HVAC Actuator Failure Causing No Heat, No A/C Control, or One-Side Temperature Mismatch
    60K-150K
    Exhaust Manifold Bolt Failure and Manifold Leak on 4.7L V8
    70K-180K
    050K100K150K200K mi

    On the 2005-2013 Jeep Grand Cherokee, the Mercedes-derived W5A580 (NAG1) 5-speed automatic used in WK and early WK2 Grand Cherokees is mechanically strong but suffers well-documented electronic and fluid-related failures. Faulty conductor-plate speed sensors and shift-pressure solenoids drop the transmission into limp mode (stuck in a single gear). Contaminated or degraded fluid (including water intrusion past the dipstick/fill-tube seal) causes torque-converter-clutch shudder, harsh or delayed shifts, and a knock on coasting downshifts. The 13-pin connector adapter can also leak, wicking fluid into the harness by capillary action.

    This issue also affects: Chrysler 200, Chrysler 300, Chrysler 300M

    Common Symptoms

    • Transmission stuck in one gear (limp mode)
    • Harsh, delayed, or banging shifts
    • Shudder/buzz during light acceleration (TCC)
    • Knock when coasting/downshifting
    • Transmission warning or P0700-family codes
    • Fluid leak at electrical connector

    How to Fix

    Scan for transmission codes; for limp mode inspect/replace the conductor plate (with integrated speed sensors) and any failed shift solenoid, and replace the 13-pin connector adapter/seal if leaking. Perform a full fluid-and-filter service with the correct ATF (MB 236.x / Mopar spec). Address water intrusion at the fill tube. Severe internal damage from prolonged shudder may require a rebuild.

    What you need to fix it

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

    • Dorman 917-678 NAG1 conductor plate kit
      OEMDorman 917-678 / Mopar 52108308AC

      Conductor-plate replacement after N2/N3 sensor or plate-circuit diagnosis on a confirmed NAG1 Fitment/availability: Dorman cross-references Chrysler 52108308AC and 68021352AA. Confirm the installed W5A580/NAG1 and sales code; Dorman 917-…

      AutoZone
    • OEM Mercedes 2035400253 NAG1 13-pin connector adapter with O-rings
      OEMMercedes 2035400253

      Case-connector sleeve replacement when leakage/fluid wicking is confirmed or the sleeve is disturbed Fitment/availability: Exact 722.6/NAG1 13-pin adapter. Confirm the installed transmission and connector; inspect the harness and TCM for…

      IDParts
    • Genuine Mopar 52108325AA NAG1 transmission filter
      OEMMopar 52108325AA

      Internal sump-filter replacement during a properly scoped NAG1 pan service Fitment/availability: The catalog includes specified 2005-2013 Grand Cherokee applications but also combinations using other transmissions; confirm the NAG1 tag/V…

      MoparPartsGiant
    • Crown 52108332AA NAG1 transmission pan gasket
      OEMCrown 52108332AA

      Replacement pan gasket during a confirmed NAG1 service Fitment/availability: Crown 52108332AA is cataloged for specified 2006-2013 Grand Cherokee W5A580/NAG1 applications. Confirm the installed transmission and inspect the pan before ord…

      Quadratec
    • Genuine Mopar ATF+4 68218057AC one-quart fluid
      OEMMopar 68218057AC

      Conditional fluid for a confirmed U.S.-specification NAG1/DGJ service that calls for MS-9602 ATF+4 Fitment/availability: Mopar 68218057AC, one quart. Verify the installed transmission, market and service specification before filling; do …

      IDParts

    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 - $3,500

    Research This Issue

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jun 2026

    On the 1999-2010 Jeep Grand Cherokee, the clockspring is a plausible shared point when a Grand Cherokee has an airbag warning together with a failed horn, cruise control, or steering-wheel buttons. Factory wiring confirms that those circuits pass through the clockspring/steering-control assembly. That symptom combination does not prove the clockspring has failed, however: an SRS indicator means the restraint controller detected a monitored fault, and horn switches, relays, wiring, connectors, steering-control electronics, airbag circuits, and controller faults require separate diagnosis. The old card also combined 1999-2004 WJ and 2005-2010 WK part numbers without complete catalog or configuration proof.

    Common Symptoms

    • Airbag or SRS warning indicator
    • Horn inoperative from the steering wheel
    • Cruise-control or steering-wheel buttons inoperative
    • Fault changes with steering-wheel position

    How to Fix

    Treat an illuminated airbag indicator as a safety fault and have the SRS scanned with a restraint-capable tool. Record the exact active and stored DTCs, follow the model-year circuit tree, and test the horn and steering-wheel functions independently before condemning the clockspring. If circuit testing confirms the clockspring/steering-control assembly, select the replacement by VIN, model year, steering-wheel controls, steering-angle-sensor configuration, and current Mopar supersession. The assembly must be centered and the steering wheel kept in the correct position. SRS service can cause accidental deployment: follow the factory disable procedure, isolate the negative battery cable, wait the specified discharge time, and use trained service if you are not qualified. After repair, clear and recheck SRS DTCs and verify every wheel function.

    Owner tips & cautions

    • WarningDo not probe airbag inflator circuits with an ordinary test light or meter and do not rotate an uncentered replacement clockspring. Follow the model-year SRS procedure or use a qualified technician.
    • TipSave the exact SRS DTCs before clearing them. The lamp plus a dead horn is a useful clue, but the DTC and circuit test determine whether the clockspring is actually open.

    Research This Issue

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    Manually Verified
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2005-2007 Jeep Grand Cherokee, on 2005-2007 (WK) Grand Cherokees, wear inside the ignition switch/lock cylinder can allow the key to be jarred out of the RUN position — by a knee, a heavy key ring, or a rough road — which shuts off the engine and can disable power steering, power brake assist, and the airbags while driving. Owners also report the key sticking, being hard to turn, or not returning the fob to a working state. FCA issued Safety Recall P41 (NHTSA campaign 14V-438) covering the affected Grand Cherokees; the remedy replaces the ignition switch and lock cylinder assembly. This is a genuine safety defect (unintended stall / loss of assist) rather than a mere inconvenience.

    This issue also affects: Chrysler 300, Chrysler Aspen, Dodge Challenger

    Common Symptoms

    • Engine unexpectedly shuts off while driving
    • Key can rotate out of RUN with a bump or heavy key ring
    • Key sticks or is hard to turn in the ignition
    • Loss of power steering / brake assist after stall
    • Warning lights or accessories cutting out
    • Difficulty restarting after the key backs out

    How to Fix

    Verify the VIN against Safety Recall P41 / NHTSA 14V-438 at a Jeep dealer — the ignition switch and lock cylinder replacement is performed free of charge under the recall. Out of warranty or for non-recalled sticking-key complaints, replace the ignition switch/lock cylinder assembly and inspect the wiring/connector. Interim mitigation: remove heavy items from the key ring so nothing loads the key downward until the repair is done.

    Typical repair cost:$0 - $400

    Research This Issue

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 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.

    This issue also affects: Chrysler 200, Chrysler 300, Chrysler Aspen

    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

    GoogleRedditYouTubeNHTSA
    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.

    This issue also affects: Chrysler 200, Chrysler 300, Chrysler Aspen

    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

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2000-2010 Jeep Grand Cherokee, a very common Grand Cherokee problem across both WJ and WK generations is failure of the HVAC blend doors or their actuators. Owners report loss of temperature control, air stuck on hot or cold, clicking behind the dash, or dual-zone systems blowing different temperatures side to side. On WJ models, the plastic blend doors themselves commonly crack or detach; on WK models, actuator motors and door linkages are frequent failure points.

    Common Symptoms

    • No heat from vents
    • A/C stuck on hot or cold
    • Driver and passenger vents different temperatures
    • Clicking or knocking behind dash
    • Airflow mode changes incorrectly

    How to Fix

    Diagnose by commanding temperature changes and listening for actuator movement or clicking, then verify door travel with a scan tool or manual inspection where possible. Repair ranges from replacing an actuator to installing updated blend-door repair kits; on some vehicles, full HVAC box access requires major dash disassembly, though aftermarket repair kits can reduce labor on WJ models. If poor heat is also present, confirm the heater core is not restricted before replacing doors.

    What you need to fix it

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

    • Genuine Mopar 5143192AA WK front HVAC actuator
      OEMMopar 5143192AA

      WK actuator replacement after calibration and physical testing confirm failure at the matched door position Fitment/availability: Cataloged for 2005-2010 Grand Cherokee across listed engines. Confirm the installed actuator part number, c…

      JeepPartsDeal
    • Genuine Mopar 5012710AA WJ ATC HVAC door actuator
      OEMMopar 5012710AA

      WJ ATC actuator replacement after calibration and physical testing confirm motor failure Fitment/availability: For 1999-2004 WJ with Automatic Temperature Control only; the page explicitly excludes manual A/C and heater controls.

      JustForJeeps

    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

    • TipOn WJ models, many owners use aftermarket metal or reinforced blend-door repair kits to avoid repeat failure and reduce dash removal labor.
    • TipBefore replacing parts, run the HVAC calibration/self-test procedure and verify coolant flow through the heater core so a clogged core is not mistaken for a door problem.
    Typical repair cost:$250 - $1,800

    Research This Issue

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    Community Reported
    High Confidence

    On the 1999-2009 Jeep Grand Cherokee, the 4.7L V8 used in Grand Cherokee models is widely reported to develop broken exhaust manifold bolts or warped manifold sealing surfaces, especially after repeated heat cycles. Owners typically notice a ticking noise on cold start that may quiet as the engine warms, sometimes mistaken for valvetrain noise. Left unrepaired, the leak can worsen and may contribute to exhaust odor or failed emissions inspection.

    This issue also affects: Chrysler 200, Dodge Dart, Dodge Durango

    Common Symptoms

    • Ticking noise on cold start
    • Exhaust smell in engine bay
    • Soot near exhaust manifold
    • Noise decreases as engine warms
    • Possible emissions test failure

    How to Fix

    Confirm the leak with a cold-start inspection, listening near the manifold and checking for soot around the flange and broken fasteners. Repair usually involves extracting broken studs/bolts, resurfacing or replacing the manifold if warped, and installing new hardware and gaskets. Penetrating oil, heat, and careful extraction are often required because broken fasteners in the cylinder head are common.

    What you need to fix it

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

    • Crown 53034029K left-and-right exhaust-manifold gasket set
      OEMCrown 53034029K

      Manifold-to-head reseal after the leak side is confirmed and the manifold is removed Fitment/availability: Pair of MLS gaskets cataloged for 1999-2007 Grand Cherokee 4.7L. Confirm VIN and current left/right supersessions; this link does …

      JEGS
    • Dorman 674-908 WJ driver-side exhaust-manifold kit
      OEMDorman 674-908 / OE 53030933AB

      Driver-side manifold replacement only when the 1999-2004 WJ manifold is warped or cracked Fitment/availability: Exact 1999-2004 Grand Cherokee 4.7L driver-side kit with gasket and downpipe hardware. Not for 2005-2009 WK and not needed fo…

      The Wrench Monkey
    • Dorman 674-907 WJ passenger-side exhaust-manifold kit
      OEMDorman 674-907 / OE 53030934AB

      Passenger-side manifold replacement only when the 1999-2004 WJ manifold is warped or cracked Fitment/availability: Dorman's application is 1999-2004 Grand Cherokee and the kit includes gasket/downpipe hardware. Not for 2005-2009 WK.

      AutoZone
    • Crown 53013598AB WK passenger-side exhaust manifold
      OEMCrown 53013598AB

      Confirm VIN and gasket/hardware separately; not for WJ or revised 2008-2009 4.7L.

      Quadratec
    • Crown 53013599AB WK driver-side exhaust manifold
      OEMCrown 53013599AB

      Confirm VIN and gasket/hardware separately; not for WJ or revised 2008-2009 4.7L.

      Vivid Racing

    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

    • TipOwners recommend replacing all manifold hardware on the affected side once one bolt breaks, rather than only the visibly failed fastener.
    • TipA smoke test or cold-start stethoscope check helps distinguish manifold leaks from injector or valvetrain noise.
    Typical repair cost:$400 - $1,400

    Research This Issue

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    Community Reported
    High Confidence

    On the 2000-2010 Jeep Grand Cherokee, repeated owner complaints describe front brake pulsation, steering wheel shake under braking, and rotors that develop thickness variation or hot spots well before expected service life. This issue is especially well known on WJ models, though WK owners also report premature rotor wear. The problem is often worsened by heavy vehicle weight, marginal rotor capacity, seized slide pins, or uneven lug torque after service.

    Common Symptoms

    • Brake pedal pulsation
    • Steering wheel shakes when braking
    • Premature front pad wear
    • Burning smell after braking
    • Vehicle pulls during braking

    How to Fix

    Inspect rotor runout, thickness variation, pad wear pattern, caliper slide movement, and hub face cleanliness. The lasting repair is usually quality rotors and pads, proper hub cleaning, lubricated slide pins, and torqueing wheels to spec; if calipers are sticking, replace or rebuild them. Simply machining thin rotors often leads to quick recurrence.

    What you need to fix it

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

    • Raybestos 76793 front rotor for WJ
      OEMRaybestos 76793

      WJ front rotor replacement after measurement confirms the rotor pair is unserviceable Fitment/availability: 1999-2004 Grand Cherokee front, one rotor per product quantity; order two. Confirm dimensions and vehicle modifications before pu…

      FinditParts
    • Mopar 1BP00279AA WJ Akebono-caliper front pad set
      OEMMopar 1BP00279AA

      Front pad replacement only when the installed WJ calipers are the Akebono design Fitment/availability: Select the 1BP00279AA Akebono option after physically confirming the silver caliper/solid bracket.

      JustForJeeps
    • Mopar 2AMV1592AA WJ Continental-Teves front pad set
      OEMMopar 2AMV1592AA

      Front pad replacement only when the installed WJ calipers are the Continental-Teves design Fitment/availability: Select the 2AMV1592AA Teves option after physically confirming the black caliper/open bracket and retaining clip.

    • Raybestos 780289FZN Element3 coated front rotor for WK
      OEMRaybestos 780289FZN

      WK standard-front-brake rotor replacement after measurement confirms the rotor pair is unserviceable Fitment/availability: Cataloged for specified 2005-2010 Grand Cherokee standard front applications, one rotor per quantity; order two. E…

      BuyBrakes
    • Akebono ACT1080 ProACT front pad set for WK standard calipers
      OEMAkebono ACT1080

      WK front pad replacement after confirming the standard-caliper branch Fitment/availability: Cataloged for 2005-2010 Grand Cherokee standard front calipers. Excludes different performance/SRT packages; inspect calipers and confirm YMMT be…

      BuyBrakes

    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

    • TipOwners commonly recommend premium coated rotors and ceramic or severe-duty pads instead of economy parts, plus replacing hardware and lubricating slide pins every brake job.
    • TipUse a torque wrench on lug nuts and clean rust from the hub face to prevent rotor runout after installation.
    Typical repair cost:$300 - $900

    Research This Issue

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    Community Reported
    High Confidence

    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.

    This issue also affects: Chrysler 200, Chrysler 300, Chrysler Aspen

    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

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026
    NHTSA Recalls27 recalls

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

    Chrysler (FCA US, LLC) is recalling certain 2018-2019 Jeep Grand Cherokee and Dodge Durango vehicles. A malfunction in the antilock-brake system (ABS) module may incorrectly illuminate the brake lights and disable the ABS and electronic stability control (ESC). In addition, the vehicle operator may be able to start and shift out of Park without the brake pedal being applied.

    Campaign #24V83800007/11/2024

    ENGINE AND ENGINE COOLING

    Chrysler (FCA US, LLC) is recalling certain 2014-2019 Ram 1500 and 2014-2020 Jeep Grand Cherokee vehicles equipped with 3.0L Diesel engines. The crankshaft position sensor tone wheel may delaminate, causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.

    Campaign #23V41100008/06/2023

    SUSPENSION:REAR:SPRINGS:COIL SPRINGS

    Chrysler (FCA US, LLC) is recalling certain 2022-2023 Jeep Grand Cherokee and 2021-2023 Jeep Grand Cherokee L vehicles. The rear coil springs may have been incorrectly installed and detach from the vehicle while driving.

    Campaign #23V41300008/06/2023

    FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

    Chrysler (FCA US, LLC) is recalling certain 2014-2020 Jeep Grand Cherokee, and 2014-2019 Ram 1500 vehicles equipped with 3.0L diesel engines. A high pressure fuel pump (HPFP) failure may introduce internal debris into the fuel system, potentially resulting in fuel starvation.

    Campaign #22V40600009/06/2022

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

    Chrysler (FCA US, LLC) is recalling certain 2018-2019 Jeep Grand Cherokee and Dodge Durango vehicles. A malfunction in the antilock-brake system (ABS) module may illuminate the brake lights, and allow the vehicle to start and shift out of Park without the brake pedal being applied.

    Campaign #22V42600009/06/2022

    + 22 more recalls. Check all on NHTSA.gov

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    Frequently Asked Questions

    What are the most common Jeep Grand Cherokee problems?

    According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2005 Jeep Grand Cherokee has 9 documented issues. The most frequently reported are: W5A580 (NAG1) 5-Speed Automatic Limp Mode and Harsh Shift from Conductor-Plate Speed Sensors and Fluid Contamination, 1999-2010 Airbag Light Plus Horn or Wheel-Control Faults - Scan SRS First, Ignition Switch / Lock Cylinder Wear Causing Key Stuck and Unexpected Engine Shut-Off (Recall P41 / NHTSA 14V-438, 2005-2007 WK). Of these, 3 are rated critical and should be addressed promptly.

    Is the Jeep Grand Cherokee reliable?

    The 2005 Jeep Grand Cherokee has 9 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 3 issues are rated critical: W5A580 (NAG1) 5-Speed Automatic Limp Mode and Harsh Shift from Conductor-Plate Speed Sensors and Fluid Contamination and 1999-2010 Airbag Light Plus Horn or Wheel-Control Faults - Scan SRS First and Ignition Switch / Lock Cylinder Wear Causing Key Stuck and Unexpected Engine Shut-Off (Recall P41 / NHTSA 14V-438, 2005-2007 WK). 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, W5A580 (NAG1) 5-Speed Automatic Limp Mode and Harsh Shift from Conductor-Plate Speed Sensors and Fluid Contamination, typically costs $300-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

    What is the 2005-2013 Jeep Grand Cherokee W5A580 (NAG1) 5-Speed Automatic Limp Mode and Harsh Shift from Conductor-Plate Speed Sensors and Fluid Contamination?

    The Mercedes-derived W5A580 (NAG1) 5-speed automatic used in WK and early WK2 Grand Cherokees is mechanically strong but suffers well-documented electronic and fluid-related failures. Faulty conductor-plate speed sensors and shift-pressure solenoids drop the transmission into lim… Repairs typically run $300-$3,500. Severity: high.

    What is the 1999-2010 Jeep Grand Cherokee 1999-2010 Airbag Light Plus Horn or Wheel-Control Faults - Scan SRS First?

    The clockspring is a plausible shared point when a Grand Cherokee has an airbag warning together with a failed horn, cruise control, or steering-wheel buttons. Factory wiring confirms that those circuits pass through the clockspring/steering-control assembly. That symptom combina… Severity: high.

    What is the 2005-2007 Jeep Grand Cherokee Ignition Switch / Lock Cylinder Wear Causing Key Stuck and Unexpected Engine Shut-Off (Recall P41 / NHTSA 14V-438, 2005-2007 WK)?

    On 2005-2007 (WK) Grand Cherokees, wear inside the ignition switch/lock cylinder can allow the key to be jarred out of the RUN position — by a knee, a heavy key ring, or a rough road — which shuts off the engine and can disable power steering, power brake assist, and the airbags… Repairs typically run $0-$400. Severity: high.

    What is the 2000-2010 Jeep Grand Cherokee Blend Door / HVAC Actuator Failure Causing No Heat, No A/C Control, or One-Side Temperature Mismatch?

    A very common Grand Cherokee problem across both WJ and WK generations is failure of the HVAC blend doors or their actuators. Owners report loss of temperature control, air stuck on hot or cold, clicking behind the dash, or dual-zone systems blowing different temperatures side to… Repairs typically run $250-$1,800. 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 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 1999-2009 Jeep Grand Cherokee Exhaust Manifold Bolt Failure and Manifold Leak on 4.7L V8?

    The 4.7L V8 used in Grand Cherokee models is widely reported to develop broken exhaust manifold bolts or warped manifold sealing surfaces, especially after repeated heat cycles. Owners typically notice a ticking noise on cold start that may quiet as the engine warms, sometimes mi… Repairs typically run $400-$1,400. Severity: medium.

    What is the 2000-2010 Jeep Grand Cherokee Front Brake Rotor Warping / Pulsation and Premature Brake Wear?

    Repeated owner complaints describe front brake pulsation, steering wheel shake under braking, and rotors that develop thickness variation or hot spots well before expected service life. This issue is especially well known on WJ models, though WK owners also report premature rotor… Repairs typically run $300-$900. Severity: medium.

    What is the 2005-2021 Jeep Grand Cherokee EVAP Leak Detection Pump (ESIM/NVLD) Failure Triggers P0455/P0456 — Often Misdiagnosed as Gas Cap?

    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 caniste… Repairs typically run $20-$350. Severity: low.

    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 compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.