1993-2026 Jeep Grand Cherokee Problems & Issues

How to Fix

For fuel pump relay failure: Install an external bypass relay kit ($30-50 DIY) to power fuel pump directly. For complete fix: Replace TIPM unit with remanufactured unit ($400-600) or new OEM ($800-1,200). Some electrical shops can repair/rebuild existing TIPM for $200-400.

Owner tips & cautions

• WarningThis is a high-severity issue - ignoring it can lead to costly repairs or safety concerns. Address it promptly.
• TipConsider OEM parts for critical components like sensors and electrical parts - aftermarket can be unreliable
• TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes

How to Fix

Check the VIN for open P60 / 14V-634 and T36 / 17V-435 campaigns and schedule an authorized Jeep dealer if either is incomplete. FCA's T36 procedure has the dealer inspect the alternator part-number tag; a listed improved unit needs no further action, while a suspect, illegible, missing, aftermarket, or remanufactured unit is replaced under the campaign with an alternator containing improved diodes. The recall repair is free for an eligible VIN, and the owner notices include a reimbursement path for qualifying prior repairs. Because the recall repair is free, there is no need to buy a retail alternator in place of it. If the vehicle loses electrical power, stalls, or shows alternator heat, smoke, or fire, stop safely, move occupants away, and arrange towing or emergency assistance as appropriate.

Owner tips & cautions

• WarningRecall eligibility is VIN-specific. Check both P60 / 14V-634 and T36 / 17V-435; do not assume a prior generic alternator replacement completed the campaign.
• TipFCA's T36 process starts with the alternator tag. The dealer replaces the unit only when the tag/part status calls for it, and an illegible, missing, aftermarket, or remanufactured unit is handled under the campaign procedure for an eligible VIN.

How to Fix

Have the applicable recall performed (NHTSA 14V-634 for 160-amp 3.6L units, and 17V-435 for EHPS-equipped 5.7L/3.6L vehicles): dealers inspect and replace the alternator free of charge. Out of warranty, replace the alternator with an updated unit; budget roughly $400-$700 including labor.

How to Fix

Verify the VIN against Safety Recall P41 / NHTSA 14V-438 at a Jeep dealer — the ignition switch 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.

How to Fix

Check your VIN for open recall 68C / 25V741 and contact a Jeep dealer. Until the remedy is done, FCA advises owners not to recharge the vehicle and to park away from structures or other vehicles. The remedy is a software flash followed by high-voltage battery replacement if needed, free of charge. FCA also provides an unlimited-years/unlimited-mileage warranty extension to replace the battery for impacted customers who get defect-related messaging. Vehicles previously recalled for the same issue under 24V720 or 23V787 still need the new remedy.

How to Fix

Dealers replace the powertrain control module at no charge to the owner. Notification of owners started October 2, 2018. Because this is a free safety recall with no mileage or time limit, a 2018 Grand Cherokee that never had the work done is still entitled to it — check the VIN at nhtsa.gov/recalls to see whether U87 remains open, then schedule the module replacement with a Jeep dealer. Chrysler customer service: 1-800-853-1403.

How to Fix

Correction is free of charge at a Jeep dealer. The dealer inspects the software and flashes the engine or powertrain control module. Notification to owners began June 4, 2018. Look up your VIN at nhtsa.gov/recalls to see whether your Grand Cherokee is included and whether the flash has been completed; used-vehicle buyers should check even on a vehicle that has changed hands. Chrysler customer service can be reached at 1-800-853-1403. Do not use cruise control until the update is performed. If it will not disengage on the road, brake firmly and steadily, shift to neutral, and select park once stopped.

How to Fix

Diagnose with a scan tool capable of reading hybrid control modules, then inspect for active recalls, battery pack faults, coolant heater issues, and software updates. Repairs range from module reprogramming and battery coolant heater replacement to high-voltage battery pack replacement depending on the fault path. Because of the high-voltage system and fire-related campaigns, dealer-level diagnosis is strongly recommended.

Owner tips & cautions

• TipBefore troubleshooting, check VIN-specific open recalls and software campaigns; many 4xe complaints are tied to updates or battery-related safety actions.
• TipOwners recommend documenting charge level, ambient temperature, and whether Level 1 or Level 2 charging was used when faults occur, since intermittent charging issues can be pattern-dependent.

How to Fix

Start with a complete vehicle scan and save active, stored, and environmental data before clearing anything. Load-test the battery, verify charging voltage, and repair low-voltage faults first. Inspect the relevant fuses, power feeds, grounds, connectors, and CAN wiring, then measure key-off draw only after the vehicle has completed its normal sleep period and isolate the circuit that remains awake. For radio resets, identify the exact radio sales code and vehicle build date and check the VIN for the applicable FCA software or radio procedure. For a lost-communication fault, determine whether the named module is actually offline, whether multiple modules logged against it, and whether its power, ground, and network circuits pass before condemning it. Replace and VIN-configure a BCM, radio, IBS, or battery only when the component-specific test proves it failed.

Owner tips & cautions

• WarningU0140 means communication with the BCM was lost; it does not prove the BCM itself failed. Voltage, power, ground, wiring, network, and reporting-module faults must be separated first.
• TipAsk the shop to show the sleep-current measurement, the circuit that stayed awake, and the network scan before authorizing an expensive programmed module.

How to Fix

Remove the cluster and reseat/clean the connectors with contact cleaner; resecure loose plugs. Repair cold-solder joints on the cluster circuit board or replace the cluster (2002-2004 electroluminescent clusters can be retrofitted into 1999-2001 cars). Verify BCM/grounds if multiple unrelated gauges drop together. Re-check connector retention after reinstall.

How to Fix

Diagnose by elimination after CKP, fuel pump, and grounds are ruled out. Options: send the PCM for bench repair (specialists like Circuit Board Medics), or install a remanufactured PCM programmed to the vehicle's VIN and SKIM/immobilizer. Any replacement PCM must be VIN-programmed to run. Inspect PCM connectors/pins for corrosion first.

How to Fix

Have the Uconnect software update installed — it is free and it eliminates the vulnerability. Owners were mailed a USB drive with the update; the same file could be downloaded to a personal USB drive from driveuconnect.com/software-update, and any Jeep dealer would install it immediately at no cost. Chrysler also had the wireless service provider close the open cellular connection to the vehicle as an interim mitigation. Run your 2014-2015 Grand Cherokee's VIN through nhtsa.gov/recalls to confirm the update was actually performed rather than assuming it was.

How to Fix

Ask a Jeep dealer to check your VIN against bulletin 08-172-25 (2023), 08-171-25 REV. B (2024) or 08-170-25 (2025); the repair is updating the body control module with the latest available software. For early 2022-2023 models with Uconnect 5, bulletin 08-055-23 REV. A describes an over-the-air radio software update to S26.18 that lists battery drain among its symptoms. Owners also report other causes, including a Power Distribution Center replacement that fixed one 2024 Grand Cherokee L. Normal warranty rules apply; this is not a recall or a promise of free repair.

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.

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

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.

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.

How to Fix

Start with the cooling system and the actual failure path: pressure-test the system cold, inspect external leak points, test for combustion gas where appropriate, and inspect the oil and coolant for cross-contamination. For a misfire, follow the factory diagnostic path and use compression and leak-down results rather than assigning the code to the head. Record the installed casting/foundry markings because a prior repair may have changed the head. If removal is justified, have the head and deck inspected and pressure-tested by a qualified machine shop. Only after the crack, deck condition, installed casting, and required machining are known should the shop select an application-specific head, gasket set, and fastener plan.

Owner tips & cautions

• WarningDo not buy a cylinder head from the model year alone. Read the markings on the head that is actually installed; a previous engine repair may have changed the casting.
• WarningP0300 or a cylinder-specific misfire does not prove a cracked head. DaimlerChrysler documented another 4.0L cause—slow-closing exhaust valves from carbon—within this same WJ year range.
• TipBefore ordering repair parts, preserve the pressure-test, combustion-gas, compression, leak-down, casting-identification, and machine-shop findings so the part choice matches the confirmed failure.

How to Fix

Check the VIN for open recall W79 and schedule the free repair with an authorized Jeep dealer. FCA's procedure replaces the EGR cooler using campaign parts. If the malfunction indicator lamp is illuminated, the dealer checks for P0299 and P2D2F; when either is present, the intake manifold is inspected and leak-tested and is replaced only if perforation is confirmed. Monitor the coolant level as FCA advises and contact the dealer if it is consistently low. If there is smoke, a burning smell, visible fire, or rapid coolant loss, stop safely, shut the engine off, move occupants away, and seek emergency/towing assistance. Do not buy an EGR cooler, manifold, aftermarket cooler, or gasket bundle in place of the VIN-specific recall remedy.

Owner tips & cautions

• WarningDo not substitute an aftermarket EGR cooler for an open safety recall. Confirm W79 by VIN and use the free dealer remedy.
• TipThe intake manifold is not an automatic add-on. FCA calls for inspection and leak testing when P0299 or P2D2F is present, with replacement only if perforation is found.
• WarningThe corrected Jeep population is 28,884 potentially involved vehicles; 34,334 was not the Jeep-only total in NHTSA's report.

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.

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.

How to Fix

Verify with a scan tool (loss of CKP signal / no RPM during crank) rather than parts-swapping. Replace with a quality sensor — Mopar lists crankshaft position sensor 56028666AB for 2001-2013 4.7L V8 engines (it supersedes 56028666AA and 56028136/56028137-series numbers); confirm 1999-2000 fitment by VIN (56028133-series is the CAMSHAFT sensor, do not confuse). Use OEM Mopar or premium NGK/NTK; cheap sensors frequently fail again. On some 4.7L applications the starter must be removed for access.

Owner tips & cautions

• WarningDo not replace the sensor from P0320 alone. The factory tree also lists CKP supply, ground, signal wiring, cam signal, and PCM causes.
• WarningRecall 04V-112 is a limited 2004 4.0L campaign; it does not make a 1999-2004 4.7L sensor replacement a recall repair.
• TipThe 4.7L sensor sits above the starter. Follow the factory O-ring, flush-seating, and torque precautions so the new sensor is not damaged during installation.

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.

How to Fix

Confirm the misfire is mechanical, not just a coil/plug, via compression or leak-down on the affected left-bank cylinder (TSB threshold: 25%+ leakage). The accepted repair is replacing the failed LEFT cylinder head with the revised casting (hardened valve guides/seats — reman RL141353AC or the updated OEM 'AD' casting), new head gasket and bolts, plus spark plugs and often coils. If the vehicle is within the X56 10-year/150,000-mile window, the dealer replaces the left head at no cost. Independents may rebuild/reseat a head, but the OE remedy is the redesigned head assembly.

Owner tips & cautions

• WarningDo not order a cylinder head from a tick or misfire code alone. FCA requires leakage testing on the cylinder that set the DTC and a result of at least 25 percent before this bulletin's head-replacement path applies.
• TipAsk the dealer to check the VIN for X56 status and repair history even though the original time limit may have expired; coverage was VIN-, time-, and mileage-dependent.

How to Fix

Replace the oil cooler/oil-filter housing assembly at the first sign of oil-coolant mixing; many EcoDiesel owners proactively fit an upgraded external oil cooler kit to eliminate the cross-contamination path. Flush the cooling and oil systems thoroughly after any contamination event, and inspect bearings/engine condition before returning to service. Address any coolant loss or emulsified oil immediately — continuing to drive risks a total-engine repair.

Owner tips & cautions

• WarningDo not buy an oil cooler from the old card. The reviewed FCA bulletin documents a filter-generation mismatch risk, not the old casting-debris and universal cross-contamination claim.
• WarningThe linked filter is for the original 2014-2019 GEN-2 3.0L application. Never substitute the newer GEN-3 cap-and-element design because the cartridges look similar.

How to Fix

Check the VIN for open recall 78C and contact an authorized Jeep dealer. FCA's current remedy reprograms the Powertrain Control Module with software that detects and monitors for potential pending engine-bearing failure. If the software confirms bearing failure, FCA replaces the long block or engine. FCA's March 2026 report also identifies warranty extension XC2 with unlimited years and unlimited mileage for impacted customers who receive defect-related messaging and need a long block or engine. Follow the official do-not-drive and park-outside advisories until the VIN-specific remedy is completed; if knocking, a malfunction light, smoke, fire, or loss of propulsion occurs, stop safely, move occupants away, and arrange dealer/towing or emergency assistance as appropriate. Do not self-source an engine for a free safety-recall repair.

Owner tips & cautions

• WarningRecall eligibility is VIN-specific. Use the NHTSA or Jeep VIN lookup and follow FCA's do-not-drive and park-outside advisories until recall 78C is completed.
• TipThe current recall remedy starts with PCM software monitoring; a long block or complete engine is replaced only when the remedy confirms the covered bearing-failure condition.
• WarningDo not buy the old 68412483AF retail engine link. FCA's free VIN-specific recall process and warranty extension determine the covered replacement.

How to Fix

Verify the oil was filled to the correct level and document mileage and oil added under Chrysler's oil-consumption test procedure. If the vehicle passes the test, do not replace PCV parts for this concern. If it fails, inspect the full PCV path for restriction, confirm the installed valve is the correct part for the VIN and engine, and verify the correct intake-vacuum source; repair only a fault found in those checks. If the PCV system is correct, record a cylinder-compression test and perform a leak-down test using the applicable service specifications. Also diagnose any visible external leak separately. Do not order a PCV valve, revised hose, or catch can from oil use alone, and do not attribute P052E or P0300 to this concern without an actual scan and code-specific diagnosis.

Owner tips & cautions

• TipRecord the exact oil level, mileage, and quantity added. A repeatable consumption test is more useful than guessing from one low reading.
• WarningDo not treat the PCV valve as the default repair. Chrysler's sequence checks it only after a failed oil-consumption test and moves to compression and leak-down testing when PCV is correct.
• WarningThe old 30,000-mile PCV interval, catch-can recommendation, P052E/P0300 mapping, and universal valve/hose purchases were removed because the reviewed FCA evidence does not support them for this card.

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.

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.

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.

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.

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 vehicles 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.

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

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.

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.

How to Fix

Replace the oil-filter adapter O-ring kit — on 1993-1998 ZJ models, Crown Automotive / Mopar 4720363 (a 3-O-ring kit, adapter retained by a T60 Torx bolt); this kit is listed for XJ/ZJ only, so 1999-2004 WJ owners should confirm the correct seal by VIN. Clean the mating surface first. A popular permanent alternative deletes the adapter housing and runs a shorter PH3614-style filter directly. Confirm the source with the housing area cleaned and dye if needed before condemning the rear main.

Owner tips & cautions

• TipDegrease the area and establish the first wet point before buying parts. Oil from the filter gasket, sender, valve-cover edge, oil-pan rail, or rear of the engine can cross the same area.
• WarningThe old card's T60-fastener and adapter-delete advice was not universal enough for this full year span. Follow the service information for the exact adapter installed on the vehicle.

How to Fix

Have the recall (NHTSA 16V-240) performed: dealers install software that automatically applies Park when the driver's door opens with the engine running and the seatbelt unbuckled. The shifter was redesigned to a conventional pattern from MY2016. Until the fix, always confirm the 'P' indicator and set the parking brake before exiting.

How to Fix

The repair is free at any Jeep dealer. The dealer inspects the steering column control module on your Grand Cherokee and replaces it if the weld is not correct — there is no charge for the inspection or the replacement. Some owner notification letters for this campaign were mailed between April 11 and June 20, 2024, so if you bought your 2023 Grand Cherokee used, the letter may have gone to a previous owner. Enter your VIN at nhtsa.gov/recalls to see whether recall 24V199000 is still open on your specific vehicle, then book the dealer visit. Questions can go to FCA US customer service at 1-800-853-1403, quoting campaign 14B, 33B, 34B, 35B or 36B.

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.

How to Fix

Scan the Occupant Restraint Controller for stored codes, then inspect under-seat connectors, terminal tension, harness routing, and any signs of pin drag or intermittent contact. Repairs typically involve connector replacement, terminal repair, harness retention updates, or module/software updates depending on the exact fault. Clearing the light without fixing the root cause usually results in repeat warnings.

Owner tips & cautions

• TipOwners often suggest documenting exactly when the warning appears, especially after seat movement or folding the second row, to help isolate an intermittent connector issue.
• TipAvoid probing SRS connectors with generic test lights; use proper scan diagnostics and battery disconnect procedures before any seat harness inspection.

How to Fix

Inspect the intermediate shaft connection, pinch bolt torque, and steering column coupling per FCA recall procedure. Under recall 23V352 (FCA 58A), dealers inspect and, if necessary, replace the intermediate shaft and assembly parts free of charge, and verify steering operation afterward. Any steering play, clunk, or off-center wheel should be checked immediately and the vehicle should not be used until repaired.

Owner tips & cautions

• TipOwners commonly recommend checking for any steering clunk or free play during a test drive after recall completion rather than assuming the repair was done correctly.
• TipIf the wheel is no longer centered after repair, request a steering angle calibration and alignment check.

How to Fix

Recall remedy (Campaign N45, free at Jeep dealers) installs a factory Mopar trailer-hitch/rear-structure reinforcement that shields the tank in low-to-moderate rear impacts. Owners should verify the recall was completed via VIN at NHTSA/the dealer; if not, have the hitch installed. Note critics consider the fix only a partial mitigation — the tank position is unchanged.

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.

How to Fix

Take the vehicle to a Jeep dealer; they will inspect and, if necessary, replace both second-row head restraints at no charge. Verify whether the second-row headrests fully lock upright after folding the seats; if one stays folded forward, the part needs replacement. Check VIN recall status via NHTSA or Mopar owner site.

How to Fix

Confirm the VIN build record, 545RFE sales code DGQ, stored transmission DTCs, and TCM event data. Read digits three through six of the TCM barcode; TSB 08-016-05 identifies 0984 through 0405 as the suspect controller build range. If the vehicle or controller date is outside scope, the bulletin does not apply and the transmission complaint needs its normal diagnostic path. For an in-scope vehicle, use the bulletin's P0868/gear-ratio decision path and compare desired, scan-reported actual, and mechanically measured line pressure with correct fluid level and temperature. Inspect wiring, connectors, cooler lines, leaks, and engine driveability first. The repair may involve the TCM and, when low pressure was present, inspection for clutch-disc damage; it is not a universal retail-parts fix.

Owner tips & cautions

• WarningDo not apply this TSB to every 45RFE/545RFE complaint. It requires a 2004 WJ/WG, 4.7L/4.7L H.O., sales code DGQ, the bulletin's vehicle build range, a listed DTC, and a suspect TCM date code.
• TipPreserve the TCM event data before clearing codes. The bulletin uses that data and the controller barcode date to separate a controller fault from actual low pressure and clutch damage.
• WarningA filter kit, ATF, cooler, Sonnax valve, separator plate, or solenoid pack is not a complete answer to this card. The old links represented different failure paths and have been removed.

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.

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.

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

How to Fix

Inspect rear ride height, spring seating, upper isolators, and any signs of spring displacement or tire rub. Under recall 26V562 (FCA 89D, which replaces 23V413 and 26V051), dealers will replace the rear coil spring lower isolators free of charge once the final remedy is available, including on vehicles already repaired under the earlier recalls. If symptoms appear before recall service, the vehicle should not be driven until the rear suspension is checked.

Owner tips & cautions

• TipIf the rear suddenly drops or you hear a bang, inspect for spring displacement and tire rub immediately; many owners recommend towing rather than driving to the dealer.
• TipAfter recall repair, ask the dealer for an alignment check if the vehicle was driven while sagging or rubbing.

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.

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.

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.

How to Fix

Check the VIN for open recall Z46 and schedule the free repair with an authorized Jeep dealer. FCA's procedure is condition-dependent: a vehicle delivered in good running condition receives the campaign HPFP and associated non-contaminated-system service, while a non-running vehicle is diagnosed for pump failure and, when contamination is confirmed, receives the pump, in-tank modules, filters, injectors, rails, high-pressure tubes, fuel-system cleaning, and other campaign items specified for that vehicle. If the vehicle stalls, loses power, leaks fuel, or will not restart, move it to a safe location, shut it off, and arrange a tow rather than continuing to run the engine. Do not buy a retail CP4 pump, injector set, or filter bundle before VIN eligibility and contamination status are established.

Owner tips & cautions

• WarningRecall eligibility is VIN-specific. Do not assume every 2014-2020 EcoDiesel is included, and do not extend this card to 2021-2023 vehicles.
• WarningDo not order the old 68211269AA pump or a universal injector/filter bundle as the recall fix. FCA's dealer kits and component scope change depending on whether pump failure and contamination are present.

How to Fix

Fuel-pressure test before replacing. Replace the complete in-tank fuel pump module assembly (Mopar module by application, or quality aftermarket Airtex/Spectra/Delphi for 1999-2004 WJ) rather than just the pump. If the gauge stays erratic after replacement, check the tank-to-cluster wiring/grounds and the instrument cluster gauge circuit. Avoid bending the float arm on install.

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.

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.

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.

How to Fix

Stop driving once contamination is found. Replace the radiator (OEM Mopar radiator by application, or aftermarket CSF/Spectra/Koyorad for 1999-2004 WJ) and thoroughly flush the cooling system. Flush/replace ATF and the transmission filter multiple times; badly contaminated transmissions need a rebuild. Many owners add an external auxiliary trans cooler and bypass the in-radiator cooler to prevent recurrence.

How to Fix

Replace water pump when symptoms appear. Replace thermostat at same time. Ensure proper cooling system bleeding after repair.

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

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.

How to Fix

Have the open recalls performed: NHTSA 23V-352 inspects and, if necessary, replaces the steering column intermediate shaft, and 24V-132 replaces the upper control arm pinch bolts free of charge (24V-131 separately replaces improperly machined steering knuckles on some 2024 models). Address any steering play or clunking immediately rather than waiting.

How to Fix

Cut out corroded metal and weld in replacement panels: aftermarket rockers (Key Parts 0484-101 driver / 0484-102 passenger for 99-04 WJ) and rear wheel arches (Key Parts 0484-147 driver / 0484-148 passenger for 99-04 WJ), plus floor-pan sections as needed (Mill Supply / Classic 2 Current). Requires welding — professional bodywork recommended. Undercoat afterward and keep the rocker/pinchweld drain holes clear to slow recurrence.

Owner tips & cautions

• WarningDo not place a jack or stand on a perforated or collapsing pinch weld. Have the lift points and adjacent structure assessed before the vehicle is raised there again.
• WarningAn outer rocker panel is a repair skin, not proof that hidden inner structure is sound. Cutting and welding should follow a measured body-repair plan with fire protection and restored corrosion protection.

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.

How to Fix

Check for stored body/liftgate module faults, verify latch alignment and striker position, inspect pinch sensors and wiring in the hinge area, and test strut force. Dealers often address this with software updates, latch adjustment, sensor replacement, or liftgate module relearn procedures. If the gate bounces back or will not latch, avoid forcing it repeatedly because that can damage the cinch motor.

Owner tips & cautions

• TipClean the latch and striker area and verify no cargo mat or weatherstrip interference before assuming a module failure.
• TipOwners recommend performing the power liftgate height/memory relearn after battery replacement or low-voltage events.

How to Fix

Remove the door panel and inspect the regulator assembly, cable, and glass mounts. The standard repair is replacement of the complete regulator, often with an updated aftermarket metal-reinforced unit; inspect the switch and motor only if the regulator mechanism is intact. Replacing vapor barrier adhesive and checking door drains helps prevent moisture-related repeat issues.

Owner tips & cautions

• TipOwners strongly prefer metal-backed or upgraded aftermarket regulators over early plastic-heavy designs.
• TipHave spare door-panel clips on hand before disassembly because the originals often break during removal.

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.

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. Address leaks promptly to avoid wet headliner, mold, and corrosion of nearby electrical connectors.

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.

How to Fix

Keep the transfer case topped and use the correct fluid — the NV247 requires Mopar Transfer Case Lubricant (MS-10216, P/N 05016796), NOT ATF or ordinary gear oil. Fix leaks by replacing the rear output/slip-yoke seal and resealing the case halves, and clear/replace the plastic vent cap so pressure can't push fluid past the seals. Verify factory fill on early 1999 units.

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.

How to Fix

First confirm the vehicle is a 2008 4WD 4.7L model and identify its front axle and differential equipment from the VIN, build data, and sales codes. Reproduce the sound during a tight turn under power and under acceleration, constant load, deceleration, and coast. Inspect both CV boots for tears and grease, then check the joints, shafts, differential mounts, and related hardware for play or movement. If build data confirms the C200F front axle, follow the cited service-manual road test: warm the axle lubricant, compare the sound under load and coast, and inspect lubricant level plus ring-gear backlash and gear condition when the pattern points inside the axle. For a different axle family, use its specific service procedure. Turn the vehicle in both directions to load the axle bearings and compare the noise. Order a CV axle only after the failed side and limited-slip configuration are confirmed; order differential bearings, seals, or gears only after the axle family and internal fault are measured. Differential setup is specialist work, so do not buy a kit from noise alone.

Owner tips & cautions

• WarningDo not order a front axle or differential kit from the noise description alone. Confirm 2008 4WD 4.7L scope, failed side, limited-slip equipment, axle family, and VIN/build data first.
• TipPhotograph any torn boot, grease pattern, or differential leak and ask the shop to document when the sound changes: tight turn, acceleration, steady speed, or coast. Those patterns separate several possible causes.
• WarningThe old axle cross-references and mount search were removed. ShowMeTheParts lists different limited-slip and non-limited-slip CV candidates plus multiple differential families for 2008, so none is universal.

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.

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.

How to Fix

Record the exact DTCs, freeze-frame data, warning text, VIN, build date, and current PCM software level. Have an EcoDiesel-capable shop or Jeep dealer follow the code-specific FCA diagnostic procedure and check whether a VIN-specific service action, applicable software update, or AEM extended warranty applies. Do not infer a failed tank from P20E8, P204F, P20EE, or another reductant code alone: verify the relevant pressure, heater, level/temperature input, fluid quality/contamination, delivery line, injector, SCR catalyst, wiring, and control-software path specified for that VIN. Replace only the component the tests and applicable FCA procedure identify.

Owner tips & cautions

• TipBring the exact code, freeze-frame data, VIN, build date, and software level to diagnosis; FCA's documented remedy changes with those details.
• WarningDo not buy a complete DEF tank from the warning message alone. FCA records show that software, contamination, the tank, lines, injector, catalyst, pump, sensors, or related controls can require different service paths.
• TipFor a 2014-2016 EcoDiesel that received the Approved Emissions Modification, check the transferable extended-warranty term before paying for DEF/SCR diagnosis or covered parts.

How to Fix

Confirm the vehicle is a covered 2018 WK with engine sales code ESD and transmission sales code DFS, save the DTC and freeze-frame information, and check the VIN and current calibration level. Follow FCA TSB 18-001-26: maintain the specified battery voltage, reprogram the PCM with the latest software using wiTECH or equivalent, and clear DTCs set during programming. If P0420/P0430 returns, exhaust restriction or loss of power remains, or other DTCs are present, continue with the current factory catalyst, fuel-control, misfire, exhaust-leak, and sensor diagnostics for the exact vehicle. Do not buy oxygen sensors or catalytic converters from the code alone.

Owner tips & cautions

• WarningDo not use this bulletin on a 3.6L Grand Cherokee. Its exact scope is the 2018 6.2L supercharged ESD/8HP95 DFS application.
• TipAsk the shop to record the original calibration, completed flash, cleared DTCs, and post-flash result before any catalyst or sensor purchase is discussed.

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. A, and on 2020 3.6L units check the fuel vapor hose quick connector in the left rear wheel well per TSB 18-035-20; replace or reconnect as needed — 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. On 2013-2016 models, FCA requires the EELD/smoke test and confirmation that PCM flash updates have been performed before the ESIM or canister is 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).

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.