Owner-reported complaints naming the engine system, filed with NHTSA
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Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2023 Jeep Wagoneer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 46 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 46, in the owner's own words
Temperature alert went off for too hot. Was stranded in North Carolina while driving for vacation. Had to get a rental while thermostat was replaced. This is a known and widespread issue yet no recall has been sent out.
While driving at low speed, the vehicle suddenly shut down completely without any warning. The engine lost power while I was cruising, causing the vehicle to stop responding. On separate occasions, the vehicle has also shut off while idling. This condition creates a serious safety concern because the vehicle can stall unexpectedly in traffic, increasing the risk of a collision. The issue has occurred multiple times and appears to be happening everytime i drive the vehicle. It started nov of 2025 up to now dealership cannot fix the problem.
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
I am reporting a catastrophic engine failure on a 2023 Jeep Wagoneer (VIN: [XXX] ) that occurred within 163 miles of consumer delivery, suggesting a latent manufacturing defect present at the time of sale. The vehicle was delivered February 13, 2026 at approximately 29,750 miles. Engine noise was noted the same evening. By March 10, 2026, the vehicle was grounded at Farris Motor Company [XXX] ) at 29,913 miles — 163 miles after delivery. The vehicle remains inoperable after 60+ days. Stellantis STAR Case #XXX documents the following confirmed failures: collapsed lifters, failed camshaft, damaged rockers, and scored cylinder walls. Technician notes in the official STAR Case record state the engine oil contained metal contamination so severe it "looked like paint." Borescope imaging confirmed scoring on cylinder walls. Stellantis has thus far refused to authorize a full engine replacement, instead directing the servicing dealer to replace only individually identified failed components — despite the fact that metal contamination of this severity compromises the entire lubrication circuit, including both turbochargers. The servicing dealer (Farris Motor Company) has independently advocated to Stellantis for full engine replacement and agrees the partial repair is insufficient. I am reporting this failure to NHTSA to document the defect pattern and request investigation into whether other 2023 Wagoneer vehicles with the 3.0L Hurricane engine may be experiencing similar latent valvetrain failures. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Vehicle started up on its own and continued to run. Key fob was laying on a night stand. No messages were displayed in car. I was able to turn it off.
It seems that when the outside temperature is very warm/hot, when turning the car on or when idling at a traffic light or driving at very low speeds, on occasion the car will abruptly and without warning, shift itself into Park and the emergency brake activates. I took the vehicle in for repair on 10/23/25 and was told there was a "thermostat internal failure" and that the "thermostat assembly" was replaced. I was just recently traveling in Florida ( reside in NY) and the exact same problems occurred with my vehicle which I can only assume was due to the warmer temperatures that my vehicle has not been exposed to since the last repair as I reside in New York. I feel it should be worth mentioning that when turning OFF the auto start/stop button, the problems occurred less frequently but STILL happened on occasion. I've also had 3 other times when the "check engine" light came on. I was told that the first 2 were related to software updates with the transmission. On the other occasion, a "valve body" was replaced. I'm unsure if any of these were related. I've also had to replace the auxiliary battery but I don't think that's related so I didn't upload that file. Although I'm taking the vehicle to be repaired today, I took it in on 04/14/26 because the check engine light came on while in Florida when the car shifted itself into Park and the Emergency Brake was activated. The check engine light almost never comes on when this happens which I was told makes it difficult to diagnose issues. I didn't know how long this info is stored so I took the vehicle in upon returning to NY and was given a Summary Report after they hooked up a scanner. I couldn't get an appointment until today
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.
On 10/27/25, the thermostat on my wagoneer exploded. It was supposedly repaired on 10/30/25. I read in the wagoneers forum that the thermostat is a common issue, but it could be the result of engine problems. On 2/4/26, I took my vehicle in for a routine oil change. I didn't drive the vehicle for a few days. On 2/7/26, I was driving and received an Error Message stating Max Engine Oil Level Exceeded. Immediate Service required. I returned it to the dealer to fix that issue. On 2/15/26, I noticed that my engine sounded louder than normal and by 2/16/26, the check engine light was on. On 2/18/26, I received an error message saying the engine temperature was too hot. I took it back to the dealership where it is today. I believe the wagoneers have faulty engines that need to be recalled.
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.
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.
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
Repeated failures of electrical system of Wagoneer; vehicle towed to dealer who made some repairs, only for vehicle to fail again. Batteries fully replaced, issue got worse. Safety concern as vehicle will randomly not start even when traveling. Error messages with electrical shorts, failure of entertainment system.
The contact owns a 2023 Jeep Wagoneer. The contact stated that on several occasions, while driving at various speeds and continuing to accelerate, the RPM failed to respond as needed. Additionally, while slowing down the RPM failed to lower. The contact stated that the check engine warning light illuminated, or the message to check the user manual for proper oil and fuel usage was displayed. The vehicle was taken to a dealer, where it was diagnosed, and determined that a system update was needed. The vehicle was repaired, but the failure reoccurred within several months. Additionally, the contact stated that while driving on several occasions at various speeds, the entire instrument cluster became inoperable, with the speedometer remaining at 0 MPH, or the message to "Depress Brake Pedal to Start Vehicle" was displayed. The vehicle was taken to the same dealer on several occasions, where it was diagnosed and determined that both batteries needed to be replaced. The vehicle was repaired, but the failure reoccurred within a month or two. The contact stated that on one occasion, the electrical cluster was replaced. The vehicle was repaired, but the failure reoccurred within a month. The manufacturer was notified of the failure. The failure mileage was unknown.
Speedometer read zero while driving on the interstate and RPMs felt as if they were off. New electrical cluster and new battery by Jeep have already been replaced claiming it would resolve this issue.
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.
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
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. https://static.nhtsa.gov/odi/tsbs/2025/MC-11016248-0001.pdf
Speedometer & gauges will randomly blackout and not work and it causes the engine to do funny things while driving. Battery drains from the issues (stranded twice even after new batteries installed). Rear view camera sometimes glitches as well and freezes up.
Service brakes because the brakes engaged on their own while reversing, with no obstruction present. Power Train because the transmission downshifting unexpectedly in traffic, forcing us to pull over on the highway and restart the engine. Electrical because the rear camera blackouts while reversing fall under "back over prevention" and sometimes also electrical system. Engine because the oil pump solenoid failure with a complete oil pump replacement occurred. It's also an engine lubrication system failure which can cause catastrophic engine damage and loss of power.
Vehicle speedometer has randomly blacked out on numerous occasions not allowing me to see any of my gauges. While driving on the interstate and merging the vehicle has stalled and RPMS stay stagnant yet you can hear the engine revving & then it acts like it will catch up. While driving up hill the vehicle began to stall almost like it was towing something when it was not. Back up camera has failed to turn on (resolved its self after I restarted the car). When I take it into the dealer error codes never seem to pop for these issues even though it tells me to see dealer, and read manual for proper oil and fuel usage. It’s like it has a mind of its own and it worries me to continue driving my three children around when electrical issues randomly happen every month or so & it needs constant updating. Both batteries have been replaced due to these issues draining the life out of them.
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.
While driving the vehicle the oil engine light came on as well as a front collision warning lamp. The car then would not go into a higher gear. The air condition shut off and the car started making an electric type of noise and started slowing down and eventually stopped leaving myself and my two children stranded. This put both myself and my two children at risk. We had to get transportation home and get the car towed to the dealership and they confirmed that it is a malfunction of the thermostat which they relayed is a KNOWN ISSUE with this model of car and its engine. There has been a recall with Jeep, but only with a portion of its vehicles and my VIN was not included.
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.
I am writing to formally request your assistance regarding my 2023 Jeep Wagoneer— [XXX] — which has experienced extensive and repeated mechanical failures that have placed my safety—and the safety of my young children—in serious jeopardy. This was purchased new. In December, I went through arbitration regarding these issues. Unfortunately, I was unsuccessful, largely because I did not have legal representation and was unable to adequately represent myself. Since that time, the problems have continued, and the vehicle remains dangerous and unreliable. I am fearful this vehicle is going to end up costing our family our lives. One of the most recent alarming incidents resulted in me sustaining a black eye due to unexpected, random braking— this was in late July. In addition, there have been ongoing and unresolved issues with the four-wheel-drive system, despite nine separate repair attempts. The rear differential has been replaced four times, and the front transfer case has also been replaced—yet the problems persist. To date, my vehicle has undergone over 40 documented repair attempts and has spent more than 250 days in the dealership for repairs. Despite these efforts, it is clear that the vehicle cannot be properly repaired and continues to pose a serious risk. Given the severity, frequency, and duration of these failures, I believe this case warrants urgent attention under Arkansas consumer protection and lemon law statutes. I respectfully request that your office review my case and take any appropriate actions to ensure my family’s safety and my rights as a consumer. I can provide full service records, repair invoices, and documentation from the arbitration process upon request. Thank you for your time and attention to this matter. I look forward to your prompt response. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Vehicle runs hot due to faulty thermostat. This is a very common and known issue but jeep refuses to replace it unless it runs hot and dies. Hundereds or thousands of the 3.0L wagoneer have had this issue. It is potentially dangerous as it can leave you stranded in the roadway in traffic. I attempted to get mine replaced proactively due to it being a well known problem and opened 2 custom complaint cases with jeep. Both times I was told it must fail, run hot and leave me stranded to get it repaired under warranty. Well, just as I assumed it would, it did and left me stranded in the middle of the roadway.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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