Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Jeep Wrangler owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at 40-50 MPH on the highway far right lane, several unknown warning lights illuminated as smoke was coming from under the hood. The contact stated that the accelerator pedal felt as if the friction was lost against her foot, and the accelerator pedal traveled all the way to the floorboard as the vehicle failed to accelerate. The contact immediately pulled over to the side of the highway, turned off the vehicle, opened the front driver's side door, and noticed smoke and flames coming from beneath the vehicle. The fire department was notified and extinguished the fire. A fire department report was filed. No physical injuries were sustained; however, the contact stated she sustained emotional distress. The vehicle was towed to an independent mechanic; however, the failure was not diagnosed. …
The radiator is poorly built and leaks, I have had mine replace several times by the dealership This is dangerous because it causes overheating in the engine which can cause hose to bust and engine to seize up . The oil filter house is engineered incorrect and all of them have been breaking causing oil to leak which again, ruins other components in the engine because of loss of oil. Its dangerous because the oil that leaks down through the outer portion of the engine, through to the sides and leaks over the bottom of the transmission onto the ground which is: 1. Environmental hazard- oil leaking causes water pollution, soil contamination, harm to animals and plants 2. Leaking oil is a FIRE HAZARD and safety issues for other vehicles causing slippery conditions for other vehicles 3. …
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving approximately 60 mph, the vehicle started to hesitate. The contact pulled over to the far right of the roadway. The contact then turned off the vehicle and while attempting to restart the vehicle, the vehicle failed to start-up. The contact had the vehicle towed to a certified mechanic who diagnosed that the starter had failed and needed to be replaced. The contact stated that while attempting to run the starter, the vehicle made a clunking sound and it was confirmed that the engine also failed and needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 13V234000 (Steering, Power Train) as a possible solution to the failure however, the VIN nor the model year was included. …
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at 40 MPH and depressing the accelerator pedal, the vehicle lost motive power and stalled. The check engine warning light was flashing. The vehicle was taken to the local dealer, where it was diagnosed that the oil pressure sensor circuit had failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to two other local dealers, Marino Chrysler Dodge Jeep Ram (5133 W Irving Park Rd, Chicago, IL 60641) and Dodge Parts Overstock Parts (2875 Mall Hill Dr, Lakeland, FL 33810), where it was diagnosed the oil pressure sensor circuit had failed and needed to be replaced. The oil pressure sensor circuit was replaced, but the failure persisted. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. …
The contact owns a 2015 Jeep Wrangler. The contact stated while driving at approximately 55 MPH, the vehicle jerked. The check engine warning light illuminated. The vehicle was pulled to the side of the road, and was restarted; however, the failure recurred. The vehicle was taken to an independent mechanic where it was diagnosed with a coil pack failure. The vehicle was not repaired. The contact stated that the vehicle was taken to several different independent mechanics however, the cause of the failure was not yet determined. The vehicle was not repaired. The vehicle was taken to the dealer where it was diagnosed with leakage on the left cylinder. The vehicle was not repaired. The contact discovered Technical Service Bulletin: 09-002-14; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 84,000.
I had a 2015 2 dr Jeep Wrangler Willy's edition. In march 2023, after sitting cold in the driveway for 10+ hours, it spontaneously combusted. It was very obviously an electrical fire based on the smell alone. It appeared that the most damage was in the area of the battery and fuse box. Vehicle was completely totaled and I found many reports online of similar issues, including many wranglers that were completely totaled after the fire. There is no official acknowledgement of this recurring issue. The fire caught so fast, if I had not been parked in the driveway faced away from the house, I might not have a home either. Insurance did not do an investigation into the cause of the fire.
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at various speeds, the vehicle lost motive power and stalled. The contact stated that the failure had occurred several times while driving on a busy freeway. The failure also occurred while the vehicle was idling at a red light. After the failure, the vehicle was restarted and operated normally. The vehicle was taken to the local dealer who was unable duplicate a failure or determine the cause of the failure. The vehicle was not repaired. The contacted stated that after retrieving the vehicle the failure persisted. The manufacturer was also notified of the failure. The failure mileage was 113,000.
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving 30 MPH, there was an abnormal sound coming from the engine. The check engine warning light was illuminated. The vehicle was taken to a dealer, who determined that there was a misfire in cylinders #1 and #2, and the right intake valve needed to be replaced. The vehicle was not repaired. The vehicle remained at the dealer and had not been driven since. The manufacturer was made aware of the failure. The failure mileage was approximately 86,096.
The contact owns a 2015 Jeep Wrangler. The contact stated while driving 55 MPH, the vehicle stalled temporarily. There was no warning light illuminated. The contact was able to continue driving; however, the failure reoccurred while driving. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 141,200.
The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who determined that there was a cylinder #2 misfire, and that the valve needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 88,000.
Engine complaints in other Wrangler years
Frequently asked questions
How common are engine problems on the 2015 Jeep Wrangler?
NHTSA has 132 complaints about the engine & cooling of the 2015 Jeep Wrangler, 28% of the model year's 478 complaints. The component named most often is cooling system › radiator assembly (2 mentions).
Is there a recall for 2015 Jeep Wrangler engine problems?
No. NHTSA lists no engine & cooling recall for the 2015 Jeep Wrangler, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2015 Jeep Wrangler engine problems start?
Half of the complaints with a recorded mileage happened before about 47,000 miles, and 28% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 16 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.