50 of the
352 complaints filed about the Jeep Grand Wagoneer
are about the engine —
14% of everything owners reported.
The worst model year for it is 2023.
The following are issues; -Adas disables mid drive (no warning lights) at highway speeds -steering angle sensors shows not calibrated in live data feed of bscm -air ride stuck in aero mode -select terrain drive modes not functioning as intended -loses all power engine dies at stoplight and eps warning light on -
NHTSA complaint #11742624 — an unverified report by a vehicle owner.
Car engine completely shuts down at highway speeds sudden loss of throttle/power at highway speed * RPM surging or erratic behavior * dashboard/light flickering * vehicle entering limp mode or shutting down * no-start condition afterward * then the vehicle “magically” works again later * dealership unable to reproduce it * sometimes no stored codes
NHTSA complaint #11740434 — an unverified report by a vehicle owner.
I was at a stoplight, waiting to making a U-turn. The light turned green release the brake and went to hit the gas. The entire vehicle shut off. I lost all power and had to restart the vehicle in the middle of the intersection with vehicles behind me. It took at least 30 seconds and I ended up having to wait a cycle on the light because I couldn’t go at the time. Once I got the car back on, I lost power steering and my check engine light came on. I was able to make it to parking lot. Once I got there, I parked in the parking space the vehicle did the automatic shut off to conserve energy once I parked I press the button to shut that feature off when I did it the vehicle shut off again. I lost power to everything and had to restart the engine. This has happened multiple times as I believe it’s related to the electrical system and the automatic shut off. I’ve also had multiple other issues with the vehicle in the electrical system. The most recent being that pulling out of a parking lot onto the highway my vehicle would not shift gears, and I had to pull over to the side of the road as I could not get out of first gear. It ended up being the electrical components of the transmission. At the time of the incident listed above, I had just picked up the vehicle from having this issue replaced and had it for less than six hours when this other issue happened. We bought this vehicle used with roughly 58,000 on March 17, 2026, I’ve owned it for just over two months and in those two months it’s been in the shop more than we’ve been able to drive it due to a series of electrical incidents that causes the check engine light to go on or the vehicle to shut off.
NHTSA complaint #11739837 — an unverified report by a vehicle owner.
Transmission and fuel injector malfunction: Vehicle shutters upon acceleration. Particularly noticeable driving up hill or when maintaining speeds. Vehicle is available for inspection upon request. Jeep acknowledges the issue, noted a malfunction with PICO data and a fuel injector repair was done under warranty. Stellantis deems the shuttering "acceptable." Safety is at risk as there is a hesitation and inconsistency in the transmission while driving. Yes the problem has been reproduced by 2 dealers, a Stellantis Starcase was opened and Stellantis has a SOL published for service centers but is refusing to release the fine print of the SOL to the consumer. The vehicle has not been inspected by the manufacturer despite 3 open cases requesting that a Stellantis Master Technician review the issue. Yes there were several warning lights including "Service Transmission" and "Check Engine" that began appearing at 6000 miles. The issue persists today at 14k miles.
NHTSA complaint #11738549 — an unverified report by a vehicle owner.
Vehicle was driven for 5 minutes before alerting that it was overheating. While attempting to pull into a safe location off of a main road, the vehicle would not allow me to accelerate. This left our family stranded in the turn lane. I was unable to restart the engine or shift into drive.
NHTSA complaint #11736489 — an unverified report by a vehicle owner.
The thermostat failed causing the vehicle to go into a reduced power mode while climbing a hill with a trailer. The dealer has a technical service bulletin for this issue but the overheating can call engine damage or an accident when the vehicle has reduced power. There were no warnings on the cluster until the car was already in a protection mode and power had been reduced. The cluster coolant temperature gauge is slow to respond and not accurate.
NHTSA complaint #11733287 — an unverified report by a vehicle owner.
While driving my 2024 Jeep Wagoneer, the vehicle experienced a sudden and complete loss of power without warning. The engine shut off while the vehicle was in motion, including during a turn. When this occurred, I lost power steering, which made the vehicle difficult to control and created an immediate safety hazard. Prior to this incident, the vehicle had ongoing issues including overheating, repeated check engine lights, and power steering warnings. The vehicle has been taken to the dealership multiple times. A thermostat repair was previously performed, and at a later visit I was told there was an electrical/battery wiring issue that was repaired. Despite these repairs, the problem has continued. The loss of power while driving placed my safety and the safety of others at risk, especially since the failure occurred without warning and resulted in loss of steering assistance. I no longer feel the vehicle is safe to operate, particularly when transporting my children. The issue has been inspected by the dealership on multiple occasions; however, the root cause has not been permanently identified or resolved. Warning lights, including the check engine light, have appeared intermittently prior to the failure. The defect appears to be recurring and
NHTSA complaint #11709320 — an unverified report by a vehicle owner.
While stopped in traffic with the brake pedal depressed and Auto Hold enabled, my 2024 Jeep Grand Wagoneer L has repeatedly jerked and shifted itself into Park without driver input. This typically occurs after being stopped approximately 20+ seconds, often while a turn signal is activated for a left or right turn. When the failure occurs, the vehicle disables driver-assist systems, the turn signals behave like emergency flashers, false rear tail light error messages appear, and the check engine light turns on and remains illuminated. The vehicle will not move until the brake pedal is applied and the transmission is manually shifted back into Drive. The issue has occurred multiple times at different locations and dates. A recent repair replaced the vehicle’s primary electronics control module(s), but the same behavior occurred again afterward. Due to the unintended shift into Park and unpredictable system behavior, the vehicle is now parked and not being driven because I do not trust it to operate safely in traffic.
NHTSA complaint #11708197 — an unverified report by a vehicle owner.
An overheating engine causes the truck to shut down completely, block the power steering engine, and become undrivable. Electrical and harness assembly problems The dealership inspected the truck and attempted to repair it, but the same issues have recurred and are nearly causing an accident while driving on a highway.
NHTSA complaint #11705072 — an unverified report by a vehicle owner.
The contact owns a 2024 Jeep Grand Wagoneer. The contact stated that intermittently, the back-over prevention camera and navigational system froze, the speedometer was blank, and the air conditioner was inoperable. The contact stated that the Uconnect 5 infotainment system was inoperable. The navigational system continued to be frozen and was buffering for an hour at times. The vehicle had shut down on multiple occasions but restarted. The app indicated the vehicle needed to be serviced. The key fob became inoperable; the driver was unable to lock and unlock the vehicle. There were unknown warning lights illuminated. The vehicle was taken to the local dealer, who connected the computer, but there were no codes retrieved, and was unable to duplicate the failure. The vehicle was not repaired. Additionally, the contact sent an email and videos. The manufacturer was contacted, who opened and closed several cases. The failure mileage was approximately 132.
NHTSA complaint #11703040 — an unverified report by a vehicle owner.
Dear NHTSA, I am filing this complaint regarding a serious and ongoing turbocharger and engine problem in my 2022 Jeep Grand Wagoneer. Despite being one of Jeep’s flagship luxury vehicles, my SUV has experienced repeated engine warning lights, loss of power, and now complete turbo failure—all within 57,300 miles and under warranty. Soon after purchase (used, low mileage), the check engine light began appearing repeatedly. The dealership (Jeep Pearson, Broad Street, Richmond, VA) performed several repairs and software resets, but the problem always returned. Recently, I was informed that the turbocharger must be replaced—an alarming issue for such a premium vehicle. These failures have created safety risks including: Sudden loss of acceleration while driving on highways or merging. Hesitation or delayed throttle response, leading to unpredictable behavior in traffic. Concern about engine stalling or overheating from repeated malfunction. I have already escalated the issue to Jeep Brand (Stellantis) and requested the following: Vehicle replacement with a safe, defect-free model; Buyback and loan payoff to remove liability from a defective vehicle; or Two-year warranty extension covering all turbo and powertrain components. Despite multiple service visits and my written escalation, Jeep has not provided a permanent fix or assurance that the problem won’t return after repair. My warranty is nearing expiration, leaving me at risk of future costs caused by what appears to be a manufacturing defect. Through online research and owner discussions, I’ve found other Grand Wagoneer owners reporting similar turbo failures, power loss, and recurring check-engine issues, often before 60,000 miles. This suggests a potential systemic defect that could compromise safety across the 2022 Grand Wagoneer line. I respectfully ask NHTSA to Investigate turbo and powertrain reliability in 2022 Jeep Grand Wagoneers. Make/Model: 2022 Jeep Grand Wagoneer VIN: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.
NHTSA complaint #11698484 — an unverified report by a vehicle owner.
Vehicle shuts off and puts itself in park at intersections while pulling across traffic. Multiple warning lights. 4x4 faults, power steering faults, auto start/stop faults etc. happened once just after I let off the brakes to start moving and lost power brakes
NHTSA complaint #11698447 — an unverified report by a vehicle owner.
At engine idle with vehicle parked or driving in heavy traffic, exhaust fumes are entering the passenger compartment. I am not aware of any apparent exhaust leak. The fumes seem to be entering by way of the fresh air intake. I have confirmed CO readings with 2 different detection devices. If the vehicle is moving the readings have been 3-96 ppm. If the vehicle remains stopped with engine running, readings have been +100 ppm. This is a life safety concern. My local dealer had a service appointment over 1 week out 10/22/25. I asked Stellantis to escalate the case and have a reference number. # 94485584 I have lost the use of my vehicle and have not received a closer service appointment.
NHTSA complaint #11693938 — an unverified report by a vehicle owner.
Multiple battery drainage issues resulting in car not starting and battery going to zero volt. Car running hot. Failed thermostat causing engine overheat and car to shut down. System breaking issues.
NHTSA complaint #11688677 — an unverified report by a vehicle owner.
The contact owns a 2023 Jeep Grand Wagoneer. The contact stated that while his wife was driving approximately 65 MPH on the highway, the vehicle lost motive power and shut off. The vehicle was later towed to the local dealer, who diagnosed that the thermostat had failed, causing the engine to overheat. The contact was informed that the valve inside the thermostat had bound, causing improper internal operation of the thermostat. The thermostat was replaced, and the vehicle was repaired. The contact was informed that per TSB: 09-006-25, the same style thermostat was installed to repair the vehicle. The manufacturer was notified of the failure. The failure mileage was 17,500.
NHTSA complaint #11678825 — an unverified report by a vehicle owner.
The contact owns a 2022 Jeep Grand Wagoneer. The contact stated while driving at approximately 80 MPH, the vehicle stalled. The contact stated that the message "Shift to Park and Restart" was displayed. The contact was able to coast to the side of the roadway and shifted to park(P). The contact was able restart the vehicle and continued driving. The vehicle was taken to a dealer, where the failure could not be duplicated; however, the failure recurred while driving. The message "ACC Disabled" was displayed, and the power steering warning light was illuminated. The contact was able to restart the vehicle; however, the vehicle went into Limp mode and failed to exceed 15 MPH. The vehicle was taken to a different dealer, where the failure could not be duplicated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 33,000.
NHTSA complaint #11677332 — an unverified report by a vehicle owner.
While driving my 2023 Grand Wagoneer the Serv 4WD light and dash spelled out Service four wheel drive, it lit up the anti collision light, ECS, TCS, and HOLD!. The parking brake also engaged automatically while driving at least 4 times. This is a serious safety concern to allow a vehicle to continue driving with the ability to automatically engage the parking brake while driving. The safety of my entire family was put at risk. I currently have the vehicle sitting at the dealership to be diagnosed and reproduced as the vehicle lost all power after this incident. Another serious safety concern is the total loss of power with no notice. This could easily have been while I was driving and caused a serious accident and possible fatalities.
NHTSA complaint #11673436 — an unverified report by a vehicle owner.
n early January 2025, we purchased 2024 Jeep Wagoneer L that began displaying check engine warnings and experiencing significant performance issues within the first week. The vehicle was brought into the dealership (Golling Jeep in Bloomfield Hills, MI) on multiple occasions—first on January 22nd and again on February 7, 2025—for drivetrain-related concerns, including rough idling, and warning lights. The vehicle was returned after temporary fixes, but the issues quickly recurred. On February 21, 2025, the vehicle was returned to the dealership and has remained there ever since. Despite repeated diagnostic and repair attempts over the last five months, the dealership has been unable to resolve the issue. As of July 2, 2025, their latest communication indicates that a complete engine replacement may be required. The symptoms included drivability issues and engine malfunction indicator lights. The vehicle’s reliability deteriorated to the point where we felt unsafe using it for family transportation, especially on highways or long trips. The issue has been inspected and repeatedly confirmed by certified dealership technicians. The vehicle is available for inspection. There were no reported accidents or injuries, but the repeated and unresolved engine issues present a clear risk to occupant safety and undermine vehicle performance. This ongoing situation has rendered the vehicle inoperable for over 150 days while under warranty, with no final resolution provided.
NHTSA complaint #11671863 — an unverified report by a vehicle owner.
The vehicle warning indicator lights Electric Power Steering (EPS) fault light comes on and the vehicle becomes hard to steer while driving. The Stop/Start active light, Engine check/ malfunction light, service power steering light comes on and the vehicle shuts down when idling at a traffic light, the engine is automatically placed into park and has to be restarted by the driver. The vehicle is back in the shop for the third time for the same issues.
NHTSA complaint #11672041 — an unverified report by a vehicle owner.