2023 Jeep Wagoneer transmission problems

Filed Oct 30, 2026 · Engine, Transmission · 93,392 miles · IN

Issues began on 9/29/26 - The transmission was slipping and failed to shift numerous times when accelerating causing a loss of power. This happened several times at highway speeds when passing. Warning lights came on after this issue occured. This issues happend several times over the course of about a month. These issues put my safety at risk multiple times when I was suddenly not able to accelerate to pass or in some instances not able to accelerate to enter the interstate. This issue also occured at a low speed in stop and go (interstate) traffic. The vehicle would not shift out of 1st gear and I was forced to drive on the interstate at a dangerously low speed until I could exit the interstate. Warning lights came on due to this issue. The Jeep dealership assessed the vehicle and determined that the transmission needed replaced. The transmission was replaced at a certifed Jeep Dealership. The vehicle was tested, deemed repaired, and returned to me. The next day the same issue occured where the transmission would slip, grind, and then lose power. That same day the vehicle lost power completely while driving. The engine shut off while I was driving. When I pulled over began to slow the vehicle automatically and abruptly shifted itself into park. This again put my safety at risk by the loss of power while driving and unexpectedly shifting into park. The vehicle is currently at the same Jeep Dealership being assessed. I

Filed Oct 2, 2026 · Acceleration, Electrical · FL

When driving my vehicle suddenly shuts off the engine and puts the vehicle into park. This has happened multiple times now and everything shuts down, power steering, etc goes out and I’m afraid it will cause a serious accident.This seems very dangerous. Dealership tells me they don’t have any idea how to fix it

Filed Oct 2, 2026 · Electrical, Engine · MO

I recently had an oil change at the dealership I purchased the Wagoneer from. Three days after the oil change was completed, I was sitting at a stop light when the vehicle completely shut down, and the power steering went out. I started the vehicle back up and a power steering service notice popped up. That same day, the large central display screen kept flashing on and off, when it finally shut completely off. Six days later, I was driving home from work when I noticed the engine kept running up into the 6-7000 RPM's if I tried to drive over 40mph. I drove under 40mph the rest of the way home (about 10 minutes) and started noticing how loud the engine sounded and the temperature gauge was increasing. I was about 1 minute from home when my daughter and I could feel the heat coming from the engine inside the cab of the vehicle. It was so hot, I was concerned the vehicle was going to catch on fire. I parked it away from my home and called the dealership. They sent a tow truck and inspected it the next day. They stated the engine thermostat went out, and the auxiliary battery failed. There were never any warning lamps or messages displayed while this was happening. If I would not have been paying attention to the gauges and would have been further away from home, this vehicle could have overheated completely and potentially caught on fire putting my kids, myself, and others on the highway in danger. There was a Campaign Reference: 26B issued by Stellantis in April 2025 stating this exact issue and noting the repair to be performed, however, they only included specific Wagoneer's equipped with a 3.0L GMET6 engine. My engine is a 3.0L I6 Hurricane and was not included in the campaign, even though it is the exact same issue and this could have all been avoided.

Filed Sep 6, 2026 · Electrical, Engine · IL

Vehicle began to randomly shut off at low speed while moving, while stopped and also in park. Has not yet happened at high speeds. All occasions are at speeds of less than 5 mph, no MIL. Took to the dealership, diag of faulted aux battery. Battery replaced. Still very randomly will die in gear, at low to no speed, and also in park on occasion. Dealership update software of the BCM, PCM, and DCM. Returned to us with the same ongoing dying issue, returned to dealership, they did a wheel alignment, obviously didn't fix the dying issue. This vehicle carries my family, this will cause an accident as other traffic avoiding the vehicle has been the only factor in avoiding accident. No codes present. Vehicle is being refused to drive due to the uncertainty of when and where the vehicle will die randomly. This has happened numerous times over the last month, we will not accept the return of this vehicle until this problem is solved. This has so far ONLY HAPPENED AT LOW SPEED. Dealership has put many highway miles on it without replicating issue. It can be easily replicated by merely driving it from one parking spot to another or around a parking lot stopping and starting and traveling at speeds 5mph or less. This will happen at low to no throttle input. Vehicle will immediately start and run after being placed into park and hitting the start button, this is not the auto -start-stop feature working correctly. Dealership states this has only happened while pulling into a working bay at the dealership, unable to replicate results on the highway. It is currently the low speed dying that is the issue, this has been brought to the attention of the service dept on numerous occasions.

Filed Aug 20, 2026 · Transmission · WI

Three times my car has suddenly stopped and went into park. It happened once pulling into the median of a roadway. The second time I was slowing in traffic to stop at an upcoming traffic light and the most recent was backing out of a park spot. In addition to the sudden stops while in traffic it also has had hesitancy when starting from a stopped position. I have to restart the car while in traffic. Could seriously cause an accident to happen. Dealer found several CPM codes, completed an update and cleared the codes 2 days ago and now it happened again. Cabin filter, air filter were changed on 7.6.26 and the first time the car did this was a few days after that. So this has been happening for about 1 month.

Filed Aug 18, 2026 · Transmission, Wheels · NY

Vehicle: 2023 Jeep Wagoneer Series II 4WD VIN: [XXX] I am reporting a significant vibration/shaking condition in my 2023 Jeep Wagoneer. At approximately 75 MPH, the vehicle develops a noticeable shudder/shake that can be felt while driving at highway speeds. The condition is repeatable and raises concerns about the stability and safety of the vehicle during normal interstate/highway driving. I am concerned because other Wagoneer owners have reported similar highway-speed vibration conditions. I would like the cause of this vibration properly identified rather than having it attributed to normal vehicle characteristics. The vehicle should be evaluated for possible tire/wheel road-force variation or runout, suspension components, propeller shaft/driveshaft, CV joints, transfer case/output components, or other driveline components that could produce a speed-related vibration. This vehicle also has a history of having been reacquired by the manufacturer pursuant to applicable state consumer warranty laws or to promote customer satisfaction, according to the CARFAX report I obtained after purchasing the vehicle. I am requesting that the federal safety agency document this complaint and evaluate it along with other complaints involving highway-speed vibration/shaking in Jeep Wagoneer and Grand Wagoneer vehicles. The vibration occurs at approximately 75 MPH and is repeatable during highway operation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 22, 2026 · Electrical, Transmission · NC

I was driving on [XXX] and I noticed the battery meter started going down from 13 and ended at 9 and the vehicle shut of and put itself in Park while the vehicle was still moving. There were other cars behind me and the car would not restart. I had to get a jump and it restarted. The 48volt battery is faulty INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 15, 2026 · Engine, Transmission · OR

Our 2023 Jeep Wagoneer overheats (indicates excessive oil temperature and low oil pressure) repeatedly (~20 times since we've owned the vehicle) under normal freeway driving causing a safety issue by creating the need to rapidly slow and exit the roadway to prevent vehicle engine failure. The issue occurs during sustained freeway driving around 60-65 mph. The car feels like it is not properly shifting to the next gear and the RPM lingers around 3000rpm - 3500rpm. After a few minutes at this sustained RPM the engine temperature gauge slowly climbs until the overheating warning light comes on and it typically followed by a low oil pressure warning. We have taken the vehicle to a Jeep dealer twice. They have tried to replicate the issue and have not been able to. We suspect that they are not driving in long enough (30-40min) to be able to replicate the issue. They also say that they are not able to pull up any error codes from the vehicle from an ODB scanner. They say they can't diagnose the issue with out an error code and seam to be unwilling to explore the issue further. Most recently we've purchased our own ODB scanner to try to gather any error codes because the Jeep dealer doesn't seam to want to investigate further without us gathering error codes for them. Today we drove the car for about 45min on moderately hilly terrain at around 60mph and produced three separate overheating / low oil pressure error incidents while the ODB scanner was plugged in. The ODB did not indicate an error code on any of the three incidents. We are frustrated because Jeep and their dealers have left us in a situation where we have a dysfunctional vehicle and seam to be unwilling to take reasonable measures to resolve the problem.

Filed Nov 12, 2025 · Engine, Transmission · PA

The Wagoneer with 20,000 miles very suddenly started to overheat, then quickly redlined on the dash board. Car shut down at dark night intersection. Needed to be towed to dealer. Dealer diagnosed that the ENGINE needs to be replaced. WTF. Waiting for Jeep Claims rep to contact me. Case # 94698805. No word on ETA of replacement engine. Expecting a long term rental car. NOT HAPPY I'm financing at $800 per month car in shop for who knows how long. Dealer claims they have 2 other Wagoneers on the lot with same engine verdict. Is there a BUY BACK policy available? lol.

Filed Nov 12, 2025 · Electrical, Engine · GA

For the past five months, the vehicle has stalled nearly every other day, including while backing out of driveways or parking spaces and when slowing to stop. Each time, the engine suddenly shuts off without warning, the transmission automatically shifts into Park, and the emergency brake engages. An engine warning light appears with a “battery fault” message. The repeated engine shutdowns and automatic braking create a serious safety risk, particularly when backing into traffic or stopping at intersections. In several instances, the vehicle would not restart for several minutes, leaving it disabled in the roadway. The vehicle has been taken twice to the authorized Jeep dealership in Stonecrest, Georgia, but the service department was unable to reproduce or correct the issue. The problem persists, and the “battery fault” light continues to appear intermittently. Component or System: Engine and electrical system (battery and power management) Availability for Inspection: Vehicle available upon request