2015 Jeep Grand Cherokee engine problems

“My jeep diesel had the software update for the crankshaft sensor tone ring, but the tone ring failed, and my car is stuck in limp mode. Is the replacement of the tone ring covered under the original recall,or do I have to pay for the repair?”

“The contact owned a 2015 Jeep Grand Cherokee. The contact stated that while her son was driving approximately 40-45 MPH, the electronic control warning light illuminated before the failure. The contact pulled over and turned off the vehicle; however, the vehicle independently restarted. The contact exited the vehicle shortly afterwards, and the vehicle suddenly caught on fire. The fire department extinguished the fire. The contact associated the failure with NHTSA Complaint Number: 20V699000 (Engine and Engine Cooling). The vehicle was towed to a tow lot. The manufacturer was contacted by email and phone and opened a claim. The claim was declined. The investigator had taken photos. The contact was informed that the mileage had been exceeded. The failure mileage was approximately 150,000.”

“The tire pressure monitor system, the egr cooler. I had to change the egr the thermostat twice the engine the radiator the water pump and two oxygen sensors. The egr cooler is not recalled for my year but my truck was doin the same thing. The car still has a burning oil smell when the heat is on and the air don’t work”

“Recall 20V-475 / 23V-411 software patch was performed, but the underlying magnetic tone wheel defect has now physically failed, causing an active crankshaft position sensor error and stall hazard. While traveling 60mph the car stalled and went into limp mode with no prior warning. The vehicle has been diagnosed at a repair shop as a fault with the crankshaft position sensor performance which was apart of a pervious recall listed above. The vehicle has not been inspected by any others at this time as its not safe to drive and do not want out of pocket cost to do so.”

“I own a 2015 Jeep Grand Cherokee Summit 4x4 with the 3.0L EcoDiesel, with approximately 113,170 miles. The vehicle has experienced multiple intermittent episodes of “Service Electronic Throttle Control.” During the most recent episode, the vehicle briefly jerked/lurched forward and then experienced a significant loss of engine power/boost. I scanned the vehicle and found DTC P0336 (Crankshaft Position Sensor A Performance, intermittent). Clearing the code temporarily restored normal operation, but the fault later returned. During the most recent recurrence, the engine also cranked noticeably longer than normal before starting. FCA previously issued safety recall W79 concerning loss of crankshaft-position signal on these vehicles. The recall involved a software update intended to maintain engine operation using the camshaft signal if the crankshaft signal is lost. FCA also lists warranty extension X95 concerning the 3.0L diesel crankshaft tone wheel. FCA technical documentation identifies P0336 as a possible symptom associated with crankshaft tone-wheel magnetic material failure. The vehicle has not yet been inspected by a dealer or independent shop to confirm…”

“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…”