2023 Jeep Wagoneer: engine overheating

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 Jun 23, 2026 · Engine · FL

Vehicle: 2023 Jeep Wagoneer Mileage at time of incident: 43,400 miles Component: Engine Cooling System / Thermostat Incident Description: This vehicle has experienced two separate thermostat failures since purchase. The first failure occurred the day after I purchased the vehicle, in April 2024, at only 104 miles. This time the vehicle overheated /stall pattern even after confirming coolant was at a sufficient level. The second failure occurred on Monday, June 22, 2026, at 43,400 miles. While driving with my wife, son, and son's friend as passengers, the temperature warning indicator activated, signaling an engine overheating condition. Shortly after, the engine lost power and stalled completely while the vehicle was in the middle of a busy intersection. With the engine off, I had no power assist for steering or braking, which made it extremely difficult to maneuver the vehicle out of the path of oncoming traffic. My family and I were nearly struck by other vehicles while attempting to get the disabled Wagoneer clear of the intersection. The recurrence of this failure at relatively low mileage (43,400 miles on a 2023 model) indicates a potential design or manufacturing defect in the cooling system, not an isolated incident. The second failure resulted in a complete loss of engine power in active traffic, creating an immediate safety hazard to my passengers and to other drivers on the road. Repair history: Failure #1: April 2024, 104 miles Failure #2: June 22, 2026, 43,400 miles Cost of most recent repair: Approximately $2,000

Filed Apr 20, 2026 · Engine · AZ

This vehicle has had 2 incidents where the engine overheated. In both instances, the thermostat has been replaced under warranty. Due to this most recent overheating event, the repairs were over $1750 excluding the portion of repairs under warranty. There were no warnings before the engine overheated, and the vehicle was being driven on the freeway at appropriate speeds. This is not the first time this vehicle has overheated.

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 Feb 11, 2026 · Engine · PA

I wes driving and the over heat light came on in pulled over and had car towed to dealer. The dealer pulled the report and they said I needed a new engine and that I drove 40 miles in limp mode. There was no lights or indicators that there was an issue until the car overheated in that time it was only drove 3 miles. They cannot pinpoint when the light would ha e turned on and now I am stuck with a broken engine that stelantis is refusing warranty coverage but the car failed to alert me there was an issue

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 Oct 9, 2025 · Engine · IL

The thermostat failed prematurely. Car is less than 2 years old and 37,679 miles. About 37,600 at the time of incident. The engine overheated and the car states to pull over immediately. The manual states roughly that permanent engine damage can result so the driver is forced to pull over regardless of condition. I was on a highway with very narrow shoulders with family, two parents and five children. A tsb exists but a recall should be mandated.

Filed Sep 3, 2025 · Brakes, Electrical · 40,000 miles · ND

The contact owns a 2023 Jeep Wagoneer. The contact stated that several unknown lights on the instrument cluster were illuminated and flashing. Additionally, the headlights were flashing, and the camera screen was blank. The contact stated that while depressing the brake pedal, additional force was needed to stop the vehicle. There was an abnormal horn sound detected. The contact stated that the engine overheated and the vehicle stalled. The vehicle was jump-started. The contact was locked out on several occasions. The contact stated that the third-row seat had folded her child up while parental controls were enabled. The vehicle was taken to the local dealer, where the battery was replaced, but the failure recurred. The vehicle was taken to another local dealer, Charbonneau Car Center (346 1st Street West Dickinson, ND 58601); who was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 40,000.

Filed Aug 12, 2025 · Engine · ND

The thermostat failed, causing the vehicle to overheat and die on a US highway with multiple passengers inside. The vehicle subsequently needed to be towed to the dealer for service. This is a known issue but Jeep has not issued a recall. There is a customer satisfaction campaign (CSN 26B) in regard to thermostat failure, but this VIN has not been included, despite having the same engine/year known to have a defective thermostat. The overheating was a safety issue that came on suddenly and stranded the driver and passengers away from home. The warning light for engine temperature came on within a minute of the engine shutting down leaving little time to park safely along the highway.

Filed Jun 18, 2025 · Engine · OH

Vehicle suddenly lost power and overheated while driving. Had to get towed to the dealership. Dealer advised that the thermostat had failed, which seems to be a common occurrence with these vehicles. Thermostat was replaced but continued to overheat, leading the dealer to suspect the engine was warped and in need of replacement.

Filed Apr 14, 2025 · Engine · NC

On April 5th, vehicle overheated while driving in city traffic. I was able to pull to side of road where vehicle shut itself off. Prior to this event I noticed sluggish engine response and ac had stopped blowing cold air. I waited about 5-10 minutes and restarted vehicle. Sat at idle for 5 minutes with out any warnings or previous indications of an issue. Then received momentary warning of low oil pressure. I shut vehicle off and had it towed to dealership. Dealership was able recreate problem during diagnosis drive. Identified faulty thermostat. The dealership stated 3 wagoners were ahead of me with similar issues and are waiting on parts. The dealership is limited on how many thermostats they can order per week. Based on parts and labor timeline I will likely be without vehicle for 3-4 weeks.

Filed Mar 4, 2025 · Engine · IN

Vehicle overheated to 261 degrees F, stated oil pressure was low, alarms were chiming and flashing, so vehicle was pulled off road and turned off. I was only about 3 minutes from our dealership, so I turned it back on after 30 minutes, temperatures seemed okay, let it idle for 20 minutes, and attempted to drive to the dealership. Within 30 seconds of being back on the road, the vehicle overheated again. I turned off the road attempting to get into a parking lot where I would have the vehicle towed from, and the vehicle shut itself down when I attempted to leave the stop sign, and rolled me into the middle of the intersection and stopped, leaving me openly vulnerable to collision with oncoming traffic. After about 1 minute, the vehicle allowed me to restart it and accelerate enough to get myself out of the intersection and into a parking lot where the vehicle was towed from.