I am reporting a serious and recurring safety issue involving my 2022 Jeep Grand Wagoneer. The vehicle currently has approximately 95,000 miles. On the first incident, the vehicle became disabled and gasoline was pouring from the rear of the vehicle. Police and fire personnel responded and the vehicle had to be towed to the dealership. The dealership’s repair documentation states that the vehicle was brought in as a no-start with gas pouring from the rear and that technicians “found fuel line disconnected.” The fuel line was resecured. Shortly after that repair, the same serious problem occurred again. The vehicle again became disabled and leaked a substantial amount of gasoline. Police and fire personnel responded again, and the vehicle was towed back to the dealership. During the second repair, the dealership diagnosed another fuel tube issue and replaced two fuel-system components/fuel tubes. The vehicle remained at the dealership for approximately ten days. I picked up the vehicle on September 30, 2026. After driving approximately 60 miles, the Check Engine light illuminated again. Because both previous incidents began with a warning light and subsequently resulted in the vehicle becoming disabled and leaking gasoline, I do not believe it is safe to start or drive the vehicle. I am particularly concerned that the vehicle could suddenly become disabled while traveling on a highway or in heavy traffic, creating a serious risk to the occupants and other motorists. I am also concerned about the fire hazard associated with the repeated fuel leakage. This vehicle has already undergone two repair attempts relating to this fuel-system problem, yet a warning light has returned immediately after the most recent repair. I am requesting that this matter be formally documented as a recurring fuel-system safety issue, escalated for technical review by the manufacturer, and thoroughly investigated to determine the root cause before the vehicle is returned to service.
Jeep Grand Wagoneer check engine light comes on
20 of the 187 owner complaints about the Jeep Grand Wagoneer describe check engine light, most of them for the 2023 model year.
- owner complaints
- 20
- worst model year
- 2023
By model year
Often reported together
Trouble codes mentioned
U0140 1
What owners say
I am filing this complaint because my Grand Wagoneer has experienced repeated, serious safety-related failures involving the braking system, electrical/communication systems, and vehicle shutdown. I no longer believe this vehicle is safe to operate. The most serious problem has occurred more than once. On July 21, 2026, while driving, the brakes failed. The brake pedal went to the floor and the vehicle would not stop normally. Multiple warning lights/messages appeared. I ultimately had to shift the vehicle into Park to prevent a collision. The vehicle was taken to the Jeep dealership and remained there for an extended period while the problem was investigated. The dealership reported that it could not identify stored diagnostic codes explaining the brake failure. I was told that the brake pads and rotors needed to be replaced before the matter could be escalated further. I authorized approximately $2,000 in brake-related repairs. After an extended stay at the dealership, I received the vehicle back on approximately September 1, 2026. Only approximately two days later, on September 3, 2026, another extremely serious failure occurred. While I was driving, the braking system failed again. The brake pedal went to the floor and I was unable to stop the vehicle normally. The vehicle also experienced an electrical/system failure and shut down while I was driving. Numerous warning messages appeared, including a check-engine warning and suspension/damping system failure. There was also a loss-of-communication fault involving the Body Control Module (U0140 – Lost Communication With Body Control Module). This incident occurred near my daughter’s school and created an immediate risk of a collision and serious injury. The vehicle subsequently restarted, but the clock/time in the vehicle had changed, suggesting that the vehicle may have experienced a significant electrical interruption or module reset. The check-engine light remained illuminated. Other electrical problems
My 2023 Jeep Grand Wagoneer has experienced repeated safety-related defects involving the body, electrical, and powertrain systems despite 6 warranty repair visits. The vehicle has been out of service 72 cumulative days, and the current repair still ongoing. Before the most serious incident, the vehicle had already been returned to authorized Jeep dealerships multiple times for liftgate malfunctions. The liftgate repeatedly failed to open, failed to close properly, and exhibited intermittent malfunctions. These defects were repeatedly reproduced and confirmed by the dealer, and Wagoneer engineering was consulted to diagnose and repair the vehicle. The defects have not been permanently corrected. While driving on a multi-lane roadway with my children seated in the 3rd row, the rear liftgate suddenly opened without any warning light/message/alert/beep. This was the 1st time it had opened while driving. Personal belongings were ejected across 3 lanes of traffic, creating a risk of striking other vehicles or causing another driver to swerve or crash. My husband had to enter multiple lanes of traffic to retrieve our belongings before they were struck, creating an additional safety hazard, leaving us sitting in traffic in the vehicle. To my knowledge, the vehicle should not have permitted normal operation if the liftgate was not securely latched. Instead, the liftgate opened while the vehicle was in motion without any indication to the driver, eliminating any opportunity to react or prevent the incident. The vehicle has also experienced repeated lurching/harsh clunking when shifting into gear, and unexpected lurching/hard shifting and when on hills. Numerous warning lights, messages, and check engine lights have occurred since approx. 300 miles and have been dealer verified. Due to these defects remaining unresolved despite repeated repair attempts, I do not believe this vehicle can be operated safely. I am scared for my teen drivers and pedestrians in this vehicle.
On June 18, 2026, I was driving my 2024 Grand Wagoneer on a busy city road. As I approached a busy intersection, I stopped at the red light. When I attempted to move forward when the light turned green, it moved a few feet (putting us in the middle of the intersection), the vehicle seized and became immobile. Almost every light on the dashboard lit up. Several messages flashed back and forth on the screen including "Service transmission" and then "service electronic stability control". I immediately tried to use the SOS function, and when they answered, they were unable to hear me. A person in a truck behind me told me to put my vehicle in Neutral so that the vehicle could move out of the road as it was blocking traffic. When I tried to turn the gear dial, it turned, but the P light stayed on and the vehicle would not go into Neutral. I checked the parking brake and it was not on, nor would it engage. The vehicle being stalled, with zero ability to move put my children and I in danger as there was not a safe place to even exit the vehicle as traffic was completely surrounding us. I tried to turn off the vehicle, but the vehicle stayed in the "run" function even after being pressed. Emergency services was my only next choice. One more push of the off button and the vehicle finally turned off. I waited for 2 minutes and tried to turn the vehicle on again. It did turn on, showing the check engine light. I then was able to put the car into gear, and it moved. I moved the vehicle out of traffic to the next available parking lot. I immediately contacted the dealership and told them I would be having the vehicle towed there for inspection and I do not feel comfortable driving this vehicle again. Unfortunately, this is the 3rd time my car has put me in a dangerous situation in the middle of an intersection, the other 2 being false crash alerts (turning left in turning lane and car thought I was going into oncoming traffic).
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.
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.
While driving the breaks faultered and I had to slam on the break. I had to press all the way down on the break pedal to slow down or stop. Also when stopped at a light the car turns off and puts itself in park. I had to turn the car off and back on again to fix it. My safety and the safety of others was at risk due to chance of a significant car crash due to faulty break system. I had a near miss accident due to this reason. I will be calling the car dealership to tow the car to have it inspected. The ABS light came on as well as check engine light. Service power steering light also came on.
I am writing to formally document a serious and extremely concerning safety incident that occurred on Wednesday, March 4, 2026 at approximately 12:06 PM while driving my 2024 Jeep Wagoneer, which currently has approximately 58,000 miles. While driving, multiple critical warning lights and system failure messages appeared simultaneously. I have attached photos documenting the warnings that occurred during the incident. Service Power Steering • ABS warning • Red steering wheel with exclamation mark • Check Engine Light • Collision / Auto Emergency Braking warning • Traction Control / Electronic Stability Control Warning • Forward Collision Warning / Automatic Emergency Braking Disabled During this event, the vehicle behavior became unpredictable and unsafe. Considering the failure of multiple safety systems at once, this created a situation that could have easily resulted in a serious accident. I am extremely shaken by the experience and thankful that my four children were not in the vehicle with me at the time. Unfortunately, this incident is part of a long list of issues I have experienced with this vehicle since purchasing it. These include: Persistent check engine light issues • Replacement of all third-row seatbelts due to defects • Oil valve replacement (Code P06D – Oil Pump Control Stuck High) • Multiple software updates • The vehicle shifting itself into park when coming to a stop, with the gear dial locking and requiring the vehicle to be fully shut off and restarted before it can be driven again • Driver window intermittently sticking • Replacement of the passenger seat massage system due to an air bladder malfunction • Vehicle jolting/jumping when coming to a stop Given the number of ongoing mechanical and electronic problems, I no longer feel confident that this vehicle is safe to drive. I purchased this vehicle specifically for the safety and reliability.
I am filing this complaint regarding my 2023 Jeep Wagoneer, which I have owned for approximately 1.5 years. Since purchasing the vehicle, I have experienced repeated and ongoing mechanical failures, primarily involving the fuel injection system and chronic battery drainage. The vehicle has been taken to the dealership for fuel‑related issues more than five times. During these visits, the fuel pump was replaced, but the problems continued. The vehicle repeatedly triggered check‑engine lights related to the fuel system. At one point, the dealership bypassed or cleared the check‑engine indicator without resolving the underlying problem. After this, the vehicle began performing noticeably differently, including a significant drop in fuel efficiency—going from approximately 18 MPG to around 14 MPG. In addition to the fuel system defects, the vehicle has had persistent battery issues. The battery drains unexpectedly and frequently dies without warning. Even after replacing the battery, the new battery lasted only about three months before the same drainage problems began again. The vehicle will randomly shut down or stop functioning correctly until another battery replacement is performed. These issues raise serious concerns about the safety, reliability, and overall drivability of the vehicle. The repeated failures of both the fuel system and electrical/battery system pose potential safety hazards while driving and have made the vehicle unreliable for normal use. I am requesting that the federal safety agency review these recurring problems, as they appear to indicate systemic defects affecting vehicle performance and safety.
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
Related recalls
No recalls on record for this model year.
Questions about the Jeep Grand Wagoneer check engine light
Why does the check engine light come on in the Jeep Grand Wagoneer?
Owners who report it most often also describe multiple warning lights, engine stalls while driving and engine overheating, and the codes they mention most are U0140.
Which Jeep Grand Wagoneer years have check engine light problems?
The model years with the most reports are 2023 (9 complaints), 2022 (6 complaints) and 2024 (5 complaints).
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