2015 Jeep Grand Cherokee: check engine light

Filed Jul 27, 2026 · Engine, Fuel system · NC

My car started jumping after purchssing it in November 2025 used. The gear would feel like it was slipping. In March 2026 I parked my car turned it off let off the brake and it rolled. I have used the emergency brake since then. The gas gauge is off. The miles and gauge do not line up correctly and I was advised fuel pump may be off. It will drink gas up within a few miles. Check engine light came on without warning. Took it to check it out said oil sensor. He said replace it soon as you can still driveable. The next day i drove to my sons college and the jeep had no power, the check service on the screen popped up. And the jeep would not accelerate. I was anle to take it to O'Reilly and several codes appeared stating 2 gear shift ratio inaccurate 7 gear shift ratio inaccurate, engine oil pressure control circuit performance stuck off, clutch temp threshold achieved auto stick inhibit. The employee said he had never seen these codes populate. He asked if i had smelled any transmission fluid burning. I said no. No leaks nothing. Had the car for 7 months. He stated transmission isnt any good. That I would need a deep decoding done to say for sure. Car is in limp mode now. Unable to drive safely.

Filed Jun 25, 2026 · Fuel system · AZ

Capless fuel filler nozzle defect. Filler cap comes lose and engine light comes on. You can smell gas vapors in the car

Filed Jun 18, 2026 · Fuel system · WA

The check engine came on as I was driving to work the other morning, and when I got back in the car to head home for the night, my car wouldn't start at all. I have a failed High Pressure Fuel Pump system. I used my own OBD-II code reader, and got back code P0087. This issue is connected to the FCA Z46 recall issued in June 2022. The previous owner/dealership performed the service for this specific recall in May 2024 and was marked as complete. I became the current owner of this Jeep in October 2024, just 5 months after the recall was completed. I have personally driven this vehicle for only 20,000 miles since I took over ownership, which means that the new replacement parts covered under the Z46 recall failed at no more than 25,000 miles. This part is stated to last 100,000+ miles. Not 20-25k miles. However, Mopar states that recall parts are only covered for two years after the recall was completed. This puts the expiration for the 2 year part coverage at May 2026. It is currently June 2026. Just one month out of recall part warranty, and both Mopar and my local FCA approved dealership are refusing to honor the warranty and fix this issue for me for free, covered by the terms of the recall. My Jeep no longer starts at all. I got it towed back to my house so I could have it somewhere safe until I could figure out what to do next about this unexpected break down. Total cost out of pocket would range upward of $10,000 for a full HPFP replacement, including fuel pump module, fuel rails and all high pressure lines, fuel injectors and complete system clean. I'm just one month over the 2 year recall warrenty after recall was completed. And because of that, I'm looking at upwards of $10k for failed parts covered by an FCA safety recall. New parts only lasted 25 months and 20k miles. In no way should I be responsible for the cost of this repair that is obviously now considered a an unremedied recall.

Filed Jun 18, 2026 · Engine, Transmission · CA

No check engine lights prior to this, car started to make a noise pulled over to check it out as I was merging over low oil pressure showed and coolant level over temperature, gear then dropped to neutral, managed to pull over without any accidents car then shut off, oil leaked, it makes a horrible engine noise when starting, had to tow it back. only had the car a year maintenance was up to date.

Filed Feb 23, 2026 · Engine, Transmission · TX

Vehicle began displaying check engine light. Diagnostic code P219B (Bank 2 air-fuel ratio imbalance) was identified. Vehicle was serviced and a valve-related repair was performed. Shortly after, engine performance worsened and further inspection revealed metal shavings in engine oil and confirmed internal lifter/valvetrain failure. Oil levels were normal and maintenance records are available. No warning of low oil pressure or overheating occurred prior to failure. Independent service center and inspector confirmed internal mechanical failure. Engine failure created risk of sudden loss of power while driving. This appears consistent with documented Pentastar 3.6L valvetrain/lifter issues reported by other owners. Concern is potential for sudden engine malfunction and safety risk due to power loss.

Filed Feb 16, 2026 · Electrical, Engine · SC

Had to have repairs done after two weeks of purchase of vehicle for recall for vehicle losing power when picking up speed also engine light is on continuously. Contacted dealer and requested repairs Dealer was non-compliance.I had to pay for repairs myself. Still having issues and engine light still on. Contacted dealership and requested reimbursement for repairs 5 months ago haven't been reimbursed yet. What can I do. Spent $1400 for repairs

Filed Jan 16, 2026 · Engine, Fuel system · NJ

Check engine light came on and when we had it tested with the OBD‑II scanner it came back with a Fuel system wiring harness corrosion Emission control module software updates Transmission shift issues.

Filed Jan 13, 2026 · Engine · 117,538 miles · OK

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving approximately 20 MPH, the vehicle suddenly stalled. After the failure had occurred, the check engine warning light was illuminated. The vehicle was later towed to a local dealer, who diagnosed that the crankshaft position sensor tone wheel had delaminated and needed to be replaced. The vehicle was not yet repaired. The contact was informed that the VIN was not included in the federal safety agency Campaign Number: 20V475000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The manufacturer was not notified of the failure. The failure mileage was 117,538.

Filed Dec 1, 2025 · Engine · 125,000 miles · VA

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed with the heater engaged, there was an abnormal burning odor coming from the vehicle. The “Vehicle Temperature” and check engine warning lights were illuminated. The vehicle was taken back to the residence, and a dealer was contacted. The contact stated that the VIN was not included in the federal safety agency Campaign Number: 15V461000 (Equipment). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 125,000.

Filed May 14, 2025 · Driver assistance, Transmission · PA

On the highway my 2015 Jeep Grand Cherokee Diesel briefly stalled and the check engine light came on. I then lost all power and could only maintain a speed of 45MPH in a 70MPH speed limit highway. I turned on my flashers and could not get off the road due to construction and Jersey barriers for several miles. When I had the opportunity I pulled off the side of the road and called to have my vehicle towed to a service facility. I was informed by the mechanic that scanned my car for trouble codes, a P0336-00 was set in my PCM. The mechanic informed me that I would have to take the vehicle to a Jeep Chrysler dealer. This is apparently a known issue with 2014 to 2018 Jeep Grad Cherokees equipped with the 3.0L diesel engine including RAM 1500s of the same vintage with the same diesel engine installed. The specific problem is that the crank shaft tone wheel is not read by the crankshaft position sensor because of degradation to the tone wheel which is connected to the crankshaft. I have complied with all safety and emission recalls. Related: RC-RW68-20 Safety Recall W68 Transport Canada 2020-371 Loss of Crankshaft Position. Requires the replacement of the Tone wheel. Issued 02/11/2021. RC-RW58-20 Safety Recall W68 Transport Canada 2020-371 Loss of Crankshaft Position. Requires PCM Software update for Loss of Crankshaft Position. In lieu of the Tone Wheel failing, the computer uses the Camshaft Position sensor. This is only designed to not disable the car completely but allow the driver to pull of the road. P0335-00 or P0336-00 wil be set and a check engine light will illuminate. My vehicle was not included in the NTHSA Safety Recall and it should have been.

Filed Apr 14, 2025 · CO

Car stalls without warning. Car is able to cruise and brake until I can pull off to the side of the road. Car will restart after turning it off. Speed, time, duration of the drive does not matter. It happened at 40 MPH, 60 MPH, 80 MPH. It happens 5 minutes into a drive or 20 minutes. Took it to the mechanic multiple times, codes do not pop up. Engine light does not come on. Mechanic is unable to find the problem.

Filed Mar 10, 2025 · Engine, Visibility · 73,000 miles · TX

The contact owns a 2015 Jeep Grand Cherokee. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was towed to an independent mechanic where it was diagnosed that there was coolant intrusion into the engine, and that the left cylinder head and the A/C condenser needed to be replaced. The independent mechanic made the contact aware of an unknown recall; however, the VIN was not included. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 73,000.