Jeep Wagoneer owners have reported 10 other fuel system related problems since 1996. Table 1 shows the 1 most common other fuel system problems. The number one most common problem is related to the vehicle's other fuel system (10 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
This complaint involves a 2023 Jeep grand Wagoneer l series iii, a full-size luxury SUV. The vehicle has experienced repeated electrical and powertrain failures culminating in complete loss of propulsion. On 01/22/2026, while traveling approximately 45–50 mph, the vehicle abruptly shut down without warning. The engine lost power, dashboard displays went black, and multiple warning lights illuminated simultaneously. I was forced to steer to the shoulder while a trailing vehicle had to swerve off the roadway to avoid a collision. This was a near-miss event and represents a serious safety hazard involving sudden loss of motive power at highway speed. Prior to that event, the vehicle had already stalled at a traffic light and had exhibited repeated check engine warnings, low-voltage faults, and module communication errors. The servicing dealer documented multiple diagnostic trouble codes affecting the body control module (bcm), ignition system control module (iscm), and powertrain control module (pcm). Manufacturer technical service bulletin software updates were applied in attempts to correct the issue. Despite these interventions, the electrical instability persisted. On 02/12/2026, only days after an auxiliary battery replacement intended to address voltage concerns, the vehicle would not start and required towing to the dealership at my expense. Additional fault codes are currently under review. The vehicle is also subject to an open recall with no remedy available, and the power running board motor has failed with replacement parts unavailable. This pattern of electrical failure, sudden shutdown in motion, and inability to reliably start presents an ongoing and unacceptable safety risk to occupants and surrounding motorists. The vehicle is available for inspection and has been repeatedly evaluated by an authorized dealer.
My 2024 Jeep Wagoneer series 2 frequently stalls while coming out of idle, such as at traffic lights. This is not the auto stop-start feature and happens whether or not auto stop-start is deactivated. Usually, after being by stopped, as I am getting ready to start moving again, the vehicle will slightly rev or try to lurch forward before stalling out. This turns the engine off, throws the car into park, and activates my e-brake. It happens before I press the accelerator so the car is not moving more than a mile or two an hour. This problem is dangerous because it creates a risk of accidents with other vehicles. When the car stalls in this way, I must confirm the car is in park, press the brake, restart the engine, deactivate the e-brake, and shift the car into drive before proceeding through the intersection. This takes a few seconds and if the driver in the car behind me isn’t paying attention and think I am starting to move, he or she could rear-end me. This problem has happened more than a dozen times (so not every time I drive but frequent enough to be a pattern). It can happen when I have been driving for a while and the engine is warm. There is no way for me to predict in advance when it will happen. It can go weeks without happening or happen twice in the same day. It does not activate any dash warnings (such as service engine light or an error code) that I can see. I have taken my car into the dealership twice for idle related issues including once for this exact problem. The last time, the dealership found misfires on all cylinders, both catalytic converters coming apart from the inside and 02 sensors that had melted from overheating. The dealership replaced all of this. My vehicle still stalled on the way home from the dealership. This time, I detected a strong rubber or plastic burning odor when I got home. The vehicle has less than 12,000 miles on it and was bought new less than a year ago. I attach last repair invoice.
We were driving and approaching a stop light at a major intersection when the vehicle stalled out. We heard it sputter at first and then cut off. We tried multiple times to restart, but to no avail—just kept sputtering. This is the second time this has happened. The first time was also reported to NHTSA, and I was driving alone and ascending a colorado mountain when it stalled out. Thankfully, both times, we were able to remain safe; however, this is a huge problem as both times we were on major roads.
The vehicle is stalling. The vehicle has been to the dealership three times and they cannot figure out the issue. The vehicle has only been inspected by dealership. There was no warning lamps or message of this issue. The issues started two weeks after we purchased the vehicle.
While driving at lows speeds approaching a stop light the vehicle will just shut off and shift into park. I have to hit the brakes, make sure its in park, and hit the start button, it restarts then doesn't do it until randomly later it does it again. There is a check engine light on.
I was driving and the vehicle shut down and shifted into idle mode while in driving mode. Smelled something burning. Turned car off and back on quickly (as was on the road) and the smell was gone but the check engine light was on. I took to dealership next morning and it has been three weeks now that it has been at the shop. They are saying it’s an issue with the hybrid part of the battery/engine that has gone bad.
While driving on [xxx] towards vail, CO—the Jeep Wagoneer suddenly stopped accelerating while going up the side of the mountain. Lights on the dashboard were lit up, including the braking light. I was in the right hand lane, so luckily there was a shoulder on the side of the road, albeit very shallow, that I got into and immediately called roadside assistance from the vehicle. Prior to this moment, I had been driving for a little over an hour with no issue or warning. The safety concern is high, especially since I was on [xxx] accelerating up a mountain with lots of traffic behind me. If I was in the left lane or if a semi truck was right behind me, I could have been hit/hurt/killed. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
Vehicle is 4 months old and has 2300 miles on it. Randomly and suddenly the vehicle will lose power while in traffic. No steering or engine power. It will abruptly coast to a stop, put itself into park, and stall. Several lights will come on. All the lights but the check engine lights disappear after letting the car sit. The car sometimes turns over only to stall a few seconds later. If left to sit for 30 minutes or so, it will drive again. Obviously a car that shuts off and loses power while driving is a big safety issue. I am unsure if I should drive it again, in case it happens at the wrong time. This has happened on three occasions over the last 350 miles. 5/6/24 5/22/24 6/15/24 the vehicle has spent over thirty days at the dealer. They do not know how to fix it. On 6/15/ 24 one of the owners of the dealership was able to see the mechanical problems 1st hand.
On March 23, 2024, the 2022 Jeep Wagoneer series 3 turned off while at a stop light. We were at a red light and completely stopped and the engine turned off on us. We had the vehicle in for a routine oil change, and afterwards the vehicle battery died 3 times before the dealership replaced the battery. We are unsure if the dead battery is related to the engine turning off on the March 23 incident. I am unsure if there were any warning. We are also getting a error message that says "uconnect box requires service. Please visit an authorized dealer. " the dealership tries to tell us that the software is up to date. We have issues with our carplay always connecting to the vehicle when it should every single time.
Driving normally and instantly, many alert lights came on. Brake booster failed and difficult to stop vehicle. Vehicle engine power decreased. Radio screen shuts down frequently which is less an issue of safety but reflects instability of entire electrical system which seems to cause errors in critical systems such as braking and other safety equipment. Concerns regarding critical malfunctions seem to be mounting in the Wagoneer and will likely result in injury at some point if not already.