2015 Jeep Grand Cherokee transmission problems

POWER TRAIN

System Failed: Total engine failure caused by a defective Recall W79 EGR Cooler, which is available for physical inspection at my residence.Safety Risk: The vehicle suffered a sudden, complete loss of motive power at speed. This caused an immediate traffic hazard, risking a catastrophic rear-end collision due to lost propulsion, power steering, and braking.Dealer Verification: The vehicle is currently undrivable. Jeep Corporate is actively giving me the runaround and refusing to tow or diagnose the vehicle under the EcoDiesel Settlement Extended Warranty.Inspections: No inspections have been conducted yet by police, insurance, or the manufacturer; the vehicle is fully preserved.Symptoms/Warning: No long-term warning lights appeared. The vehicle suddenly lost AC cooling and instantly stalled out without advanced mechanical warning.

NHTSA complaint #11746547 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11745161 — an unverified report by a vehicle owner.

POWER TRAIN

ACC automatically canceled without braking causing car to either slow down immediately or speed up unsafely, slippery road light turns on, on dash while driving straight, lunging of the car that feels like tires are spinning and or hesitation.

NHTSA complaint #11744790 — an unverified report by a vehicle owner.

POWER TRAIN

While driving at highway speeds, my 2015 Jeep Grand Cherokee Limited unexpectedly shifted from Drive into Neutral without any driver input. This has occurred twice at different speeds. After the first incident, the vehicle was inspected by a dealership, but no diagnostic trouble codes were found and no issue was identified. The following day, the same problem happened again under similar conditions. When this occurs, the vehicle loses power to the drivetrain, creating a dangerous situation in traffic. This appears to be related to the electronic shifting module and poses a significant safety risk.

NHTSA complaint #11732206 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving approximately 70 MPH, the transmission unexpectedly shifted into neutral(N). There was no warning light illuminated. The contact was able to restart the vehicle after shifting into park(P). The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The vehicle was taken to several dealers but was not diagnosed. The dealer was able to duplicate the failure; however, no diagnostic trouble codes were found. The dealer suggested that an unstated valve might need to be replaced. The manufacturer was made aware of the failure. The approximate failure mileage was 90,000.

NHTSA complaint #11728874 — an unverified report by a vehicle owner.

POWER TRAIN

Despite having the EGR replaced under recall the unit still exploded while driving on wed 4 Mar 2026. Fluids were leaking and had indicated issues with the electric shifter. The local dealerships states the egr cooler needs replaced, coolant tank, DPF and oil change (despite just being done the Saturday before). Refusing to acknowledge any connection to previous recall or associated damages. Contacted FCA customer support and ignored my concerns and said just pay the dealer the $6000+.

NHTSA complaint #11722520 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11719777 — an unverified report by a vehicle owner.

POWER TRAIN

Rocker arm bearings went bad, need to replace all rockers and perhaps a cam or 2, this is know as the Penstar tick due to poor quality metals from Chrysler . They need to do a recall and fix for all affected cars as this is a labor intensive job and could cost up to 3000 dollars in repairs!

NHTSA complaint #11718398 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. While driving at approximately 30 MPH and accelerating, the vehicle went into LIMP Mode. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the tone wheel had delaminated. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,000.

NHTSA complaint #11713593 — an unverified report by a vehicle owner.

POWER TRAIN

Jeep constantly leaks oil and overheats even after replacing the water pump, radiator and thermostat. The airbag light comes on randomly and also Navigation system no longer works.

NHTSA complaint #11709886 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the vehicle unintendedly shifted to neutral(N) and stalled in the middle of the road. The contact stated that he depressed the brake pedal, shifted the vehicle to park(P) and turned off the vehicle. The contact stated that the vehicle was restart the vehicle after 10-15 seconds. The vehicle was not diagnosed or repaired by a dealer or an independent mechanic. The manufacturer was not notified of the failure. The contact stated that the vehicle was previously repaired under an unknown transmission recall, which the contact related to the failure. The approximate failure mileage was 85,000.

NHTSA complaint #11707625 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the service electronic system warning light illuminated. In addition, the contact stated that the vehicle drove abnormally rough. The vehicle was driven to the destination. The contact stated that while attempting to restart the vehicle, the vehicle failed to restart. The contact stated that after several attempts, the vehicle started. The vehicle was driven to the residence. The contact stated that an independent mechanic inspected the vehicle, and the vehicle was diagnosed with a failed tone wheel and that the tone wheel had delaminated. The contact stated that the vehicle was inoperable, and the engine had seized due to a failure. The dealer informed the contact that the crankshaft software update was performed in 2022. The manufacturer was made aware of the failure. The failure mileage was approximately 85,000.

NHTSA complaint #11700301 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that the Service Shifter warning light illuminated when the gear shifter was shifted to park(P). The failure had become more persistent. The vehicle was taken to the dealer, who diagnosed that the shifter had failed and the shifter, module, knob, gear shifter, and transmission needed to be replaced. The contact related the failure to NHTSA Campaign Number: 16V240000 (Power Train); however, the VIN was not included. The vehicle had not been repaired but was scheduled for a repair. The manufacturer was not informed of the failure. The failure mileage was approximately 92,000.

NHTSA complaint #11700394 — an unverified report by a vehicle owner.

POWER TRAIN

Hard shifting car jumps when put in gear I think it’s a known issue with this vehicle

NHTSA complaint #11697658 — an unverified report by a vehicle owner.

POWER TRAIN

My car goes into neutral on its own.

NHTSA complaint #11683297 — an unverified report by a vehicle owner.

POWER TRAIN

Slipping, feels like transmission is going bad

NHTSA complaint #11681740 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11661038 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated while driving at 10 MPH in a parking lot, the vehicle unintendedly shifted into neutral. The contact stated that the RED caution warning light illuminated, and a message was displayed that the vehicle going too fast for the gear. The vehicle shifted into neutral independently. The vehicle was taken to the dealer however, there was no diagnostic test provided. The dealer stated that the vehicle was repaired; however, the failure reoccurred twice. On another occasion, after the vehicle was repaired, the vehicle shifted into neutral independently and the vehicle rolled backwards. The vehicle remained had been with the dealer since March 26, 2025. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 112,000.

NHTSA complaint #11654159 — an unverified report by a vehicle owner.

POWER TRAIN

The monostable shifter shifts without pressing the button. Can be bumped out of gear while driving. Message on display reads "service shifter". Replacement is necessary.

NHTSA complaint #11647975 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated while driving approximately 40-45 MPH, the vehicle hesitated and started losing motive power. The accelerator pedal was depressed, and the transmission failed to shift as needed. The check engine warning light was illuminated. The contact attempted to restart the vehicle, and the vehicle restarted after several attempts. The contact stated that the failure persisted. The vehicle was taken to an independent mechanic, where it was diagnosed that the crankshaft position sensor needed to be replaced. The vehicle was not repaired due to the cost. The contact related the failure to NHTSA Campaign Number: 23V411000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The contact stated that weeks before the failure while driving at an undisclosed speed, the vehicle went into LIMP Mode. The vehicle was taken to the local dealer where it was diagnosed that an unknown sensor needed to be replaced. The sensor was replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 166,000.

NHTSA complaint #11646737 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving on the highway at 65 MPH, the transmission independently shifted into neutral. The contact coasted the vehicle to a stop on the side of the highway, restarted the vehicle, and continued driving normally. The vehicle was taken to a local dealer to be diagnosed; however, the contact was informed that no cause for the failure was found. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 145,000.

NHTSA complaint #11645158 — an unverified report by a vehicle owner.

POWER TRAIN

Car keeps jumping to nutral and then dies in the middle of the highway. Have to wiat like 5mins before trying to start. Once it starts ill drive for like 15mins then I happens again. No codes nor e gine light to see what the issue is. I'm lost at the mo and need the vehicle for jobs. Help!!!!!

NHTSA complaint #11637110 — an unverified report by a vehicle owner.

POWER TRAIN

My car keeps slipping into neutral, not able to go over forty three miles per hour. Will not go into park or drive at times. Electrical issues. This has happened several times two times on the freeway, with one of them and entering the freeway, almost causing an accident.

NHTSA complaint #11629559 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at various speeds, the vehicle shut off with the "Service Transmission - Restart in Park with Vehicle at Zero Speed" message displayed on the instrument panel. The contact stated that vehicle restarted after several attempts and resumed normal operation. The vehicle had been taken to several independent mechanics and the dealer; however, the failure could not be duplicated nor was the cause of the failure determined. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 100,000.

NHTSA complaint #11628512 — an unverified report by a vehicle owner.

POWER TRAIN

2015 jeep grand cherokees going into neutral on occasion while driving at speeds above 45mph. I brought my truck to jeep and expressed my concern about this safety issue and my safety. I was informed by jeep there is nothing wrong with my jeep since no codes are showing. I asked to speak to the mechanic and the mechanic told me that there is not one problem with that jeep and the 8 gear transmission is the most stable. He then said you probably put the jeep in neutral while driving. I was completely frustrated with his response and said to him, do you think I would put my jeep in neutral while driving 55mph and risk my life and possibly someone elses? I left the dealership very upset as you can imagine. A few days later it happened again and I contacted the jeep dealer to let them know the issue. Never heard back from them. I was also given the email of my service manager. I sent him a video of what happened after the car went into neutral. I also sent him links that I found online about other jeep owners complaining of their jeep going into neutral while driving. I have not heard back from the dealership yet. My guess, jeep is trying to hide this known issue. When the jeep goes into neutral the check engine light goes on and you cannot put car back in drive you have to coast to side of road. Try doing that on a 3 lane highway. Very very dangerous! Please look into this issue 🙏. I bought the car from carmax and carmax said I could have jeep look into issue. The jeep repair center reports there is no issue nor have they heard of any issue like this. If you google jeep goes into neutral while driving there are many threads about such incidents. I need help please. Upload link is not working but I have a copy of the invoice they have given me. [XXX] h INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11623327 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2015 Jeep Grand Cherokee. The contact stated while driving at approximately 30 MPH, the windshield wipers were unintentionally turned on, the infotainment screen darkened, and the vehicle lost automotive power; the vehicle failed to shift to park. The vehicle independently turned off and after several minutes independently started however, there was an abnormal sound coming from the engine compartment. All of the warning lights were intermittently illuminated. The contact stated that she had to call the local Police Department to assist her with exiting the vehicle safely however, no police report was filed. The failure occurred on several different occasions. The contact stated that she sustained emotional distress due to the incident. The vehicle was taken back to the place of residence. The contact did research and was made aware of NHTSA Campaign Number: 16V240000 (Power Train) however, the VIN was not included. A dealer was not contacted and the vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

NHTSA complaint #11622829 — an unverified report by a vehicle owner.

POWER TRAIN

"Check shifter" seems to come on almost everyday. From what I've gathered about it it could shift out of gear while driving. Could be a sensor or harness issue that I was told by a mechanic. No incident yet. This should be recalled as it seems to be a common issue with this Jeep.

NHTSA complaint #11619744 — an unverified report by a vehicle owner.

POWER TRAIN

Unknown

NHTSA complaint #11609110 — an unverified report by a vehicle owner.

POWER TRAIN

WHEN STOPPING AND SUDDENLY ACCELRATING JEEP HAS A POWER DELAY AND YOU HAVE TO HIT THE THROTTLE AGRESSIVELY TO GET GOING OR ELSE I RUN THE RISK OF GETTING HIT BY ANOTHER CAR, BUT ONCE YOU HIT THROTTLE THE POWER IS MORE THAN YOU NEED IT OR EXPECTED IT, FORCING ME TO BRAKE OR ELSE I HIT THE PCAR INFRONT OF ME. I AM STILL NOT ABLE TO MAKE THIS WORK. I PURCHASED THE CAR USED, I AM STILL MAKING PAYMENTS AND I BARELY USE IT BECAUSE I FIND IT EXTREMELY DANGEROUS AT TIME. THE POWER DOESNT COME WHEN I NEED IT BUT WHEN I DO ITS TOO MUCH, FEELS LIKE I FLOORED IT AND I HAVE MANAGED NOT TO CRASH BUT ITS SOMETHING SOMEONE SHOULD TAKE A LOOK AT BEFORE ITS TOO LATE.

NHTSA complaint #11606668 — an unverified report by a vehicle owner.