2023 Jeep Grand Wagoneer: check engine light

Filed Jul 8, 2026 · Body, Electrical · WA

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.

Filed May 24, 2026 · Electrical, Engine · CO

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.

Filed Apr 12, 2026 · Brakes · NJ

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.

Filed Mar 4, 2026 · Driver assistance, Seat belts · MN

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.

Filed Feb 9, 2026 · Electrical, Fuel system · MI

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.

Filed Feb 24, 2025 · Engine, Fuel system · 33,363 miles · CT

The contact owns a 2023 Jeep Grand Wagoneer. The contact stated that while driving at an undisclosed speed, the vehicle stalled, and the engine overheated with the check engine warning light illuminated. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer where it was diagnosed that the fuel sensor had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power with the check engine warning light illuminated. The vehicle was restarted. The vehicle was taken to the dealer where it was diagnosed that the fuel sensor failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 33,363.

Filed Sep 18, 2024 · Engine · TX

2023 Grand wagonner : Vehicle overheats while driving and completely stops in the middle of the road with no time to pull over safely. This is the second time it has happened in a year of owning it. Check engine light has been on since the first time it overheated and dealers say they don't know why.

Filed Jun 14, 2024 · Electrical, Engine · TX

We took the car home on 5/4/24 & while drive it home we started to get a binging noise, I got scared I thought the car was braking down & a message came on the instrument panel Driver 1 info & then it went away & then a few minutes later more binging this message was check 2nd row seat belt latch, stop driving also the screen,radio,and air conditioner, shut off then it come back on after a while.We had a lot going on & we had to wait for a passenger side mirror to come in because of prior damage being done to it & scratch marks that need to be buffed & everything could be done at one time.Still driving the car and picked up my parents at the airport 5/15/24 and same electrical issue coming across the instrument panel.On 5/22/24 took my parents to the airport and they were in the 2nd row seats & the 2nd row latch message came up three different time while I was driving @ 70 mph and couldn't do anything didn't have a screen,radio,air conditioner or anything.On 6/4/24 the engine light came on while driving & stayed on.Took it in on 6/5/24 & they couldn't duplicate any of the problems and they must of just reset the engine light because we pick up the car on 6/6/24 & when I driving home both the 2nd row seat belt issue come on, & Driver 1 Info I was doing 41mph when it shows up on the instrument panel & the check engine light came on the next day 6/7/24 we took it to another Dealership & they were able to duplicate all the problems. From all the service records that I can see there has been electrical system problems sense10/2/23, 2/19/24, 2/26/24 also wiring repaired done & all these issues where reported by two different Dealership before being purchased by us and the problems still keep happening 5/4/24,5/6/24,5/7/24,5/8/24,5/9/24,5/10/24,5/15/24,5/18/24,5/22/24, 6/4/24,6/5/24,6/6/24, & the seat belt problem sense 2/15/24 & continue until this day. This another Dealership has duplicate all of the problems, but they have no solution for these issues.

Filed Aug 2, 2023 · Engine · 5,994 miles · TX

The contact owns a 2023 Jeep Grand Wagoneer. The contact stated while driving 75 MPH on a road trip, the vehicle made an abnormal beeping sound, failed to accelerate while depressing the accelerator pedal, and lost motive power. The messages "Power Steering Service Required" and "Electronic Stability Control Service Required" were displayed. Additionally, the check engine warning light was illuminated. The contact was able to veer to the side of the road. The vehicle failed to restart after several attempts. The vehicle was towed to the dealer, where it was it diagnosed that the pistons had failed, and the engine needed to be replaced. Additionally, the dealer diagnosed the vehicle and determined that coolant was leaking and had mixed with the engine oil. The vehicle was not repaired. The manufacturer was notified of the failure and offered assistance in covering engine replacement, and partial assistance in covering trip disruption and vehicle rental expenses. The failure mileage was approximately 5,994.