According to Au7o's analysis of 5,812+ owner reports, the 2016 Jeep Grand Cherokee has 31 documented known issues, with 5 rated critical. The most serious are TIPM (Fuse Box) Failure ($800-$1,500 repair), 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts, 2014-2019 Grand Cherokee EcoDiesel EGR Cooler Fire-Risk Recall (W79 / 20V-699) ($0-$0 repair), 2014-2019 Grand Cherokee EcoDiesel GEN-2 Oil Filter Mix-Up Can Circulate Unfiltered Oil and 2014-2020 Grand Cherokee EcoDiesel High-Pressure Fuel Pump Recall (Z46 / 22V-406) ($0-$0 repair). The most commonly reported issue is TIPM (Fuse Box) Failure with 1,892 owner reports. Across all issues with published estimates, repair costs range from $25 to $3,000. DIY maintenance guides at au7o.io.
Chrysler (FCA US, LLC) is recalling certain 2022-2023 Jeep Grand Cherokee L and Grand Cherokee vehicles. The air bag warning label may be missing from the dashboard. As such, these vehicles fail to comply with the requirement Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Campaign #23V33600011/05/2023
STEERING:COLUMN
Chrysler (FCA US, LLC) is recalling certain 2022-2023 Jeep Grand Cherokee and 2021-2023 Jeep Grand Cherokee L vehicles. An incorrectly assembled steering column intermediate shaft may disconnect from the u-joint, and result in a loss of steering control.
Campaign #23V35200018/05/2023
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
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What are the most common Jeep Grand Cherokee problems?
According to Au7o's analysis of 5,812+ owner reports, the 2016 Jeep Grand Cherokee has 31 documented issues. The most frequently reported are: TIPM (Fuse Box) Failure, 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts, 2014-2019 Grand Cherokee EcoDiesel EGR Cooler Fire-Risk Recall (W79 / 20V-699). Of these, 5 are rated critical and should be addressed promptly.
Is the Jeep Grand Cherokee reliable?
The 2016 Jeep Grand Cherokee has 31 known issues documented across 5,812+ owner reports. 5 issues are rated critical: TIPM (Fuse Box) Failure and 2011-2021 5.7L Persistent Tick or Misfire - Confirm Valvetrain Damage Before Parts and 2014-2019 Grand Cherokee EcoDiesel EGR Cooler Fire-Risk Recall (W79 / 20V-699) and 2014-2019 Grand Cherokee EcoDiesel GEN-2 Oil Filter Mix-Up Can Circulate Unfiltered Oil and 2014-2020 Grand Cherokee EcoDiesel High-Pressure Fuel Pump Recall (Z46 / 22V-406). 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 $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, TIPM (Fuse Box) Failure, typically costs $800-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2011-2017 Jeep Grand Cherokee TIPM (Fuse Box) Failure?
The Totally Integrated Power Module (TIPM) can fail, causing various electrical issues including fuel pump relay problems (no start), random horn honking, and erratic behavior of lights and accessories. Repairs typically run $800-$1,500. 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.
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.
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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.
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.
Medium ConfidenceVerified0 reportsReviewed Jul 2026
On the 2014-2019 Jeep Grand Cherokee 3.0L EcoDiesel V6, certain 2014-2019 Jeep Grand Cherokee vehicles with the 3.0L EcoDiesel engine are included in safety recall W79 / NHTSA 20V-699. NHTSA lists 28,884 potentially involved Jeep vehicles. Thermal fatigue can cause the EGR cooler to crack internally over time, allowing pre-heated vaporized coolant into the EGR system; under some conditions the mixture can combust inside the intake manifold and lead to a vehicle fire. Recall inclusion is VIN-specific. The prior card overstated the Jeep population as 34,334, attached unsupported generic EGR codes, and offered OEM, aftermarket, manifold, and gasket purchases even though the recall repair is free and inspection-dependent.
Evidence of intake-manifold damage when the FCA inspection criteria are met
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.
On the 2014-2019 Jeep Grand Cherokee 3.0L EcoDiesel V6, GEN-2 (sales codes EXF or EXN), fCA identifies the 2014-2019 Grand Cherokee 3.0L diesel as a GEN-2 engine. Its replaceable filter element looks similar to the GEN-3 cap-and-element design used in newer diesel applications, but the two designs are not interchangeable. FCA warns that putting a GEN-3 element in a GEN-2 cap, or the reverse, can circulate unfiltered oil and cause premature engine wear. The previous card instead claimed that casting debris commonly punctures the oil cooler, causes oil/coolant cross-contamination around 100,000-140,000 miles, and justifies an oil-cooler assembly, coolant, and filter purchase. The reviewed FCA evidence does not establish those claims, so they and their search links were removed.
Common Symptoms
A service invoice or replacement cartridge identifies a GEN-3 cap-and-element design
The removed filter element is deformed after being installed in the wrong cap
Abnormal engine noise or an oil-pressure concern after an oil service
How to Fix
Confirm that the vehicle is a 2014-2019 WK Grand Cherokee with the GEN-2 3.0L diesel. Use a GEN-2 filter element specified for that exact application; on GEN-2 the element is replaced separately from the existing cap. Do not install a GEN-3 cap-and-element cartridge or detach a GEN-3 element for use in the GEN-2 cap. Compare the old and new element before installation and use the filter manufacturer's supplied seal. If a wrong-generation filter was installed, remove it, inspect it for deformation, restore the correct GEN-2 element, and have the lubrication system and engine condition assessed if the vehicle was operated or has abnormal noise or oil-pressure concerns. The exact WIX link below is limited to the original 2014-2019 3.0L GEN-2 application; verify the VIN and engine before ordering.
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.
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.
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.
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.
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.
Medium ConfidenceVerified0 reportsReviewed 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.
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.
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.
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
High Confidence750 reportsLast reported by owners Feb 2024Reviewed Feb 2026
Community reported
1,892 owners
On the 2011-2017 Jeep Grand Cherokee, the Totally Integrated Power Module (TIPM) can fail, causing various electrical issues including fuel pump relay problems (no start), random horn honking, and erratic behavior of lights and accessories.
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
High ConfidenceVerified1,892 reportsLast reported by owners Jan 2024Reviewed Feb 2026
On the 2014-2018 Jeep Grand Cherokee, uconnect resets or a blank screen, intermittent accessories, a discharged battery, and communication faults may occur together, but they do not establish that the Body Control Module is defective. Radio software or hardware, a weak battery or charging problem, poor power or ground, damaged CAN wiring or terminals, another module that will not sleep, and a true internal module fault can overlap. FCA has a software bulletin for specific early 2014 WK vehicles with RA3/RA4 radios, including radio resets and radio-caused battery drain, but that bulletin is sales-code and build-date specific and does not justify replacing a BCM, Intelligent Battery Sensor, or battery on every 2014-2018 vehicle.
Common Symptoms
Uconnect radio resets, locks up, goes blank, or responds slowly
Intermittent accessory or warning-lamp behavior
Battery is discharged after the vehicle sits
One or more modules store lost-communication faults
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.
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.
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
High Confidence820 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.
'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.
Medium ConfidenceVerified0 reportsReviewed 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.
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.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 2014-2020 Jeep Grand Cherokee 3.0L EcoDiesel V6 (sales codes EXF and EXN), certain 2014-2020 Jeep Grand Cherokee (WK) vehicles with the 3.0L diesel engine are included in safety recall Z46 / NHTSA 22V-406. The high-pressure fuel pump can fail prematurely and introduce internal debris into the fuel system, causing fuel starvation. FCA says occupants may notice a malfunction indicator lamp, a fuel leak, abnormal engine noise, or a change in drive quality; fuel starvation can cause an unexpected loss of motive power and increase crash risk. Recall inclusion is VIN-specific. The prior card incorrectly included 2021-2023 vehicles and treated an old pump number plus a retail injector set and filters as a universal repair.
Common Symptoms
Unexpected loss of motive power or stalling
Malfunction indicator lamp
Fuel leak
Abnormal engine noise
Change in drive quality or a non-running condition
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.
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.
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.
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.
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.
Medium ConfidenceVerified0 reportsReviewed Jul 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.
High ConfidenceVerified920 reportsLast reported by owners Feb 2024Reviewed Jul 2026
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.
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.
Medium ConfidenceVerified0 reportsReviewed Jun 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.
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.
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.
Medium ConfidenceVerified0 reportsReviewed 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.
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.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
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.
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.
Medium ConfidenceVerified0 reportsReviewed 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.
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.
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
High Confidence680 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.
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.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 2014-2016 Jeep Grand Cherokee 3.0L EcoDiesel V6 (sales code EXF), a DEF/SCR warning or reductant-system DTC on a 2014-2016 Grand Cherokee EcoDiesel does not prove that the complete DEF tank has failed. FCA documentation shows materially different causes and remedies within this model range: one defined 2015 population received PCM software and a fluid-level reset for reductant codes, while a separate, narrowly defined 2015 VIN/build population with manufacturing contamination required several DEF/SCR components. Eligible vehicles that received the Approved Emissions Modification may also have extended-warranty coverage for multiple DEF-system parts and diagnostic scanning. The previous card collapsed all of these paths into one integrated-tank diagnosis and published two unverified retail searches.
Common Symptoms
Malfunction indicator lamp
Service DEF or reductant-system warning
A stored DEF/SCR pressure, heater, quality, or system-performance DTC
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. No retail part is published until the failed component and VIN fitment are confirmed.
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.
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).
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.
On the 2005-2021 Jeep Grand Cherokee, warm air, a charge that does not last, or a compressor that will not engage can be consistent with a refrigerant leak, but those symptoms do not identify the condenser by themselves. Leaks can occur at lines, seals, service ports, the compressor, evaporator, receiver/drier, or condenser, while air-door, sensor, fan, electrical, or control faults can also reduce cooling. Low refrigerant pressure can cause the control system to inhibit compressor operation. The prior card incorrectly treated the front-mounted condenser as the leading universal cause and mixed generations, engines, integrated components, and part numbers without a complete leak diagnosis.
Common Symptoms
A/C blows warm or only slightly cool air
Cooling returns after a recharge and then fades
Low system pressure prevents compressor operation
Dye, oily residue, detector response, or physical damage is found at the condenser
How to Fix
Have qualified A/C service personnel identify the refrigerant on the underhood label, recover and measure the existing charge with compatible equipment, scan the HVAC/powertrain systems as applicable, and perform pressure and cooling-performance checks. Leak-test the entire system with approved fluorescent dye and/or an electronic detector and inspect all connections, lines, ports, compressor, evaporator drain, receiver/drier, and both faces of the condenser. Replace a condenser only when dye, detector response, oily residue, or visible physical damage confirms that it leaks. Use the exact VIN, platform, engine, drivetrain/cooler configuration, port layout, dimensions, and current supersession to select the assembly; 2021 WL/Grand Cherokee L applications must not be matched to a WK condenser. Replace disturbed seals and any separately required drier according to the exact service information, add only the specified oil amount, evacuate the system, verify vacuum integrity, and charge the exact label quantity. Do not use stop-leak or mix refrigerants or service equipment.
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.
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.
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.
Medium ConfidenceVerified0 reportsReviewed Jul 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.
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.
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.
Medium ConfidenceVerified0 reportsReviewed 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.
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
High Confidence750 reportsLast reported by owners Feb 2024Reviewed Feb 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.
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.
Medium ConfidenceVerified0 reportsReviewed Jul 2026
BACK OVER PREVENTION:DISPLAY FUNCTION
Chrysler (FCA US, LLC) is recalling certain 2022-2023 Jeep Grand Cherokee, 2021-2023 Jeep Grand Cherokee L, and 2022-2024 Jeep Wagoneer and Grand Wagoneer vehicles. The Central Vision Park Assist module (CVPAM) software may prevent the rearview image from displaying when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Campaign #23V57700014/08/2023
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."
What is the 2014-2019 Jeep Grand Cherokee 2014-2019 Grand Cherokee EcoDiesel EGR Cooler Fire-Risk Recall (W79 / 20V-699)?
Certain 2014-2019 Jeep Grand Cherokee vehicles with the 3.0L EcoDiesel engine are included in safety recall W79 / NHTSA 20V-699. NHTSA lists 28,884 potentially involved Jeep vehicles. Thermal fatigue can cause the EGR cooler to crack internally over time, allowing pre-heated vapo… Repairs typically run $0-$0. Severity: high.
What is the 2014-2019 Jeep Grand Cherokee 2014-2019 Grand Cherokee EcoDiesel GEN-2 Oil Filter Mix-Up Can Circulate Unfiltered Oil?
FCA identifies the 2014-2019 Grand Cherokee 3.0L diesel as a GEN-2 engine. Its replaceable filter element looks similar to the GEN-3 cap-and-element design used in newer diesel applications, but the two designs are not interchangeable. FCA warns that putting a GEN-3 element in a… Severity: high.
What is the 2014-2020 Jeep Grand Cherokee 2014-2020 Grand Cherokee EcoDiesel High-Pressure Fuel Pump Recall (Z46 / 22V-406)?
Certain 2014-2020 Jeep Grand Cherokee (WK) vehicles with the 3.0L diesel engine are included in safety recall Z46 / NHTSA 22V-406. The high-pressure fuel pump can fail prematurely and introduce internal debris into the fuel system, causing fuel starvation. FCA says occupants may… Repairs typically run $0-$0. 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 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 2011-2021 Jeep Grand Cherokee P0171 — System Too Lean (Bank 1) from 3.6L Pentastar Intake Manifold Gasket / Vacuum Leak?
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-a… Repairs typically run $150-$1,000. Severity: medium.
What is the 2014-2016 Jeep Grand Cherokee 2014-2016 Grand Cherokee EcoDiesel DEF/SCR Faults - Diagnose Before Replacing Parts?
A DEF/SCR warning or reductant-system DTC on a 2014-2016 Grand Cherokee EcoDiesel does not prove that the complete DEF tank has failed. FCA documentation shows materially different causes and remedies within this model range: one defined 2015 population received PCM software and… 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 2014-2018 Jeep Grand Cherokee 2014-2018 Uconnect Reboots, Accessory Faults or Battery Drain - Separate the Causes?
Uconnect resets or a blank screen, intermittent accessories, a discharged battery, and communication faults may occur together, but they do not establish that the Body Control Module is defective. Radio software or hardware, a weak battery or charging problem, poor power or groun… Severity: medium.
What is the 2005-2021 Jeep Grand Cherokee 2005-2021 A/C Blows Warm or Loses Charge - Confirm a Condenser Leak First?
Warm air, a charge that does not last, or a compressor that will not engage can be consistent with a refrigerant leak, but those symptoms do not identify the condenser by themselves. Leaks can occur at lines, seals, service ports, the compressor, evaporator, receiver/drier, or co… 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 2011-2023 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 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 Transfer Case Actuator Motor Failure Triggering 'Service 4WD' and Loss of Low Range?
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… Repairs typically run $200-$2,500. 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 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.
