2015 Jeep Wrangler: check engine light

Filed Oct 11, 2026 · Brakes · NC

I purchased my 2015 Jeep Wrangler as a new vehicle in Missouri in 2015. The vehicle has been appropriately maintained with no major repairs and has approximately 17,251 miles. On the afternoon on [XXX], I cranked my vehicle and several warning lights came on. The check engine, ABS, traction control, and parking brake lights all illuminated. I took the vehicle to Advance Auto for an initial code scan and had error codes U1120 (lost wheel distance), U1110 (lost vehicle speed), and U0121 (lost communication system with ABS module). I dropped the vehicle off the next morning for further diagnostics at a local Meineke location. The scans at Meineke confirmed the same error codes with an electrical system assessment determining a complete ABS module failure. In addition to the ABS module failing, the speedometer and odometer were also not working. Unfortunately, I discovered that Stellantis is no longer manufacturing the part and a significant backlog of when and if the part may ever become available again. This has resulted in an increased cost to repair since new parts are hard to find and very expensive, third-party parts are also hard to find, and companies that could repair and refurbish the part were no longer doing so due to challenges in getting the right parts for refurbishment. On [XXX] a new part was located in South Carolina, and the ABS module was replaced the next day. The total cost to repair was $3,140. This seems like straight price gouging given the cost to repair while Stellantis still manufactured the parts and the parts for refurbishing this module that is known to fail. My particular case is not an isolated event. In fact, the other vehicle in my household, also a Jeep, had a failing ABS module 1 week after mine failed. We both discovered that ABS module failures on Jeep vehicles is a known issue and one that has not triggered a recall or any legal action against Jeep and their parent company. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 19, 2025 · Brakes · TX

- 2015 Jeep Wrangler with only 46K miles - Dealership has confirmed that the ABS Module is out on the break system. - When module suddenly went out, Jeep went into "limp" mode in heavy Houston traffic. - Warning lamps: ABS System, Sway Bar, Check Engine, and Traction Control all lit up suddenly. - Chrysler/Dodge/Jeep has a National Backlog of the ABS module that apparently has not delivered new products for months or years. - Vehicle hard breaks, will not go faster than about 15mph, and cannot be used in current state as it is unsafe to drive. - Vehicle is stranded 1 hr from my home, cannot be driven and will not be able to be driven for the foreseeable future. - Unconscionable that Chrysler/Dodge/Jeep is not making this part thereby rendering my vehicle absolutely useless.

Filed Jul 24, 2025 · Driver assistance, Electrical · 134,500 miles · FL

The contact owns a 2015 Jeep Wrangler. The contact stated while driving 55 MPH, the transmission unexpectedly downshifted, and the check engine warning light intermittently flashed on the instrument panel. The contact was able to continue driving. In addition, there was an abnormal sound coming from the engine and the failure was progressively worse. The vehicle was taken to a transmission center; however, no cause for the failure was found. The battery was removed and reinstalled. The vehicle software was updated, and the check engine warning light turned off. The contact stated that on a separate occasion, while driving 15 MPH during the rain, the vehicle hydroplaned on the road. The contact's father was driving and was able to control the vehicle. The contact stated that the traction control had failed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 134,500.

Filed Jul 11, 2025 · Engine · 107,272 miles · IL

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 failure mileage was approximately 107,272.

Filed Apr 6, 2025 · Electrical, Engine · IL

The component that is failing is unknown. Unknown to mechanics because a code is not thrown. I can be driving in my neighborhood, on the highway or coasting and my Jeep stalls. Everything else is working, radio, heater just the rpm goes to zero. I have to quick turn on my hazards and prey I can coast to safety. Once out of traffics way and I am in park my car will restart no problem. my safety is at risk because it will happen on the highway. My mechanic has checked all the sensors, fuel pump and filter, battery cables, alternator you name it its been checked or replaced. I have read Jeep forums to see what others are saying and there are over 100 other jeeps that have this same problem. People are spending thousands of dollars to change out computers several times for it to keep happening and jeep has no answers. It first happened two years ago, then about one time 6 months later and then 6 months are that it happened again. But recently its been happening everyday. No matter it I am coasting, on the highway or in my local area it will stall. No warning lights no engine lights just no response in the gas peddle when it stalls. This is going to be super dangerous if other jeeps keep stalling on the highways. Check out forums it happens all the time. Jeep dealers just want to keep changing sensors for 200 here and there.

Filed Mar 28, 2025 · Engine · 86,096 miles · MA

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.

Filed Mar 19, 2025 · Electrical, Engine · MO

So I was driving into work on the interstate yesterday around 10am, and my jeep started to die out of nowhere. I almost got in a wreck. I was able to pull over on the side, and the engine light came on and I took it straight to the auto mechanic. I guess my oil filter housing unit is bad and is causing my oil to leak. The auto mechanic said this is a KNOWN issue in the design flaws of Crysler vehicles including my jeep wrangler with the 3.6L engines. This could have gone much worst for me, and after doing some more research this is happening in their 3.6L Engines and is a confirmed design flaw. The issue is reported to affect vehicles with the Pentastar V6 engine, including models like the Jeep Wrangler, Chrysler 300, and Dodge Charger, from around 2013 to 2021. They are saying it's not a safety issue, yet I almost caused an accident as my jeep started to die while driving 70 mph. This needs to be recalled asap!!! It more than likely has already caused accidents.

Filed Dec 10, 2024 · Engine · VA

while driving at an 50 MPH speed, the check engine warning light illuminated and flashing continuously. The vehicle was not in drivable condition since it was unusually vibrating while either standing or driving at very low speed. The vehicle was taken to an independent mechanic, who determined that there was a cylinder #2 misfire, and that the valve, cylinder head or crack on the casting causing this issue. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 75,000.

Filed Nov 21, 2024 · Engine · 88,000 miles · FL

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.

Filed Jul 10, 2024 · Engine · LA

The contact owns a 2015 Jeep Wrangler. The contact stated while driving at an undisclosed speed, the vehicle unexpectedly stalled with the check engine warning light illuminated. The vehicle was taken to an independent mechanic; however, the contact was unsure about the diagnostic result. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

Filed May 7, 2024 · Engine · 84,000 miles · WV

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.

Filed May 2, 2024 · Engine · TN

Check engine light came on for misfire in Cylinder 4. Jeep lost power when on the road