2020 Jeep Grand Cherokee Power Train
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
Rocker arms and lifters failed
See attached document for complaint.
Car running fine no indication there was a problem, no lights on dashboard or sound. Jeep stalled on highway and engine light came on. Shut car off completely turned it back on and able to move to a safe location. Turned off car again for some time and when turned back on shift gear will not move into drive, reverse neutral. Needed to get it towed to mechanic who diagnosed it as a failed transmission at 88,000 miles. Towed to dealer who confirmed failed transmission. Was able to get cost assistance through jeep for 70 percent of cost but see the recent recalls on jeep because of transmission I feel it should have been a total replacement especially at u der 100,000 miles
Transmission, available upon request for inspection. Clunk’s into reverse, or doesn’t engage at all. Code p1da8, p0733. Has been confirmed by dealer. Will throw check engine light occasionally. Also shifts hard between gears 3 and 4.
At approximately 54,000 miles the transmission is not shifting. I parked in a parking spot, go into a store. Then come out and the vehicle will not shift into park or reverse. The check engine light came on for the park by wire issue. These transmissions have been known to have rough shifting and my vehicle has been no exception. It’s shifted rough at low speeds and the eco mode and auto start/stop system have also made it feel less than smooth to drive.
Transmission system failed causing slipping when going into 3rd gear. Dealership inspected it and is telling me the output shaft has to be replaced. The check engine light came on when it started slipping.
While traveling Vehicle intermittent hard shifts, or no shifts, goes into neutral unexcitingly, sometimes no reverse. SES light on. 77,278 miles Dealer advised stored code - TCM P0733-00 Gear 3 Shift Incorrect Ratio. Dealer also advised vehicle needs Transmission replaced, Repair estimate $5970.28 Previous issues include ABS system repair and engine coil pack issue.
Transmission needs fully replaced, certified technician said the see this all the time in these Jeeps. Dealership said they had to replace one at 56k miles, this car has 85k miles, well taken care of. Research shows this is a very common issue. Jeep needs to cover these transmissions and recall!
Transmission failure, vehicle will not start and will not shift into reverse, leaving driver stranded and stuck in vulnerable parked position. Check engine light comes on with P1B14-00 code - "Park by wire unintended park position". Engine light did not come on until after issue happened. Dealership diagnosed and confirmed issue and engine warning light code P1B14-00. They re-flashed vehicle ECU due to recall and that did not resolve issue. They are suggesting completely new transmission.
Transmission failed while driving in traffic. Car decelerated from 45MPH to 0, gas peddle would not accelerate, break was locked in place, steering wheel locked, no warning lights appeared, flashing D on gear shift (was in drive), alert appeared on screen “Shift to P then desired gear”, car would not shift gears and gear shift was locked in place then pressed the Push to Start button, car restarted and then shook and jerked forward before allowing me to switch gears from Drive to Park then back to Drive. I was almost rear-ended by two PickUp trucks and SUV. Trucks behind me swerved out of the way to avoid hitting me and almost drove into an 18-wheeler. This occurred 1/10/2023. Problem first occurred in October 2022 in grocery store parking lot while shifting between Drive and Reverse gear. Same thing happened as stated above.
The contact owns a 2020 Jeep Grand Cherokee. The contact stated while at a stop light, the accelerator pedal was depressed; however, the vehicle failed to respond. The contact was able to pull over into a parking lot. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired. The dealer was not contacted. The manufacturer was contacted, and the manufacture stated that the vehicle needed to be diagnosed. The failure mileage was 55,803.
When using SPORT mode, the vehicle will surge forward when coming to a complete stop. The surge could cause a MVA. Have not taken in for service or inspection. No warning lights. Just don't use the feature.
Faulty transmission at 14,500 miles. Car shifted abruptly from park to reverse in harsh and sometimes in a lunging manner. Similar abrupt shifting occurred from 2nd to 3rd gear. Problem resulted in need for a totally new transmission.
WHILE I WAS DRIVING DOWN THE ROAD THE TRANSMISSION FAILED AND I HAD TO HAVE THE VEHICLE TOWED AND THE TRANSMISSION REPLACED. THE VEHICLE ONLY HAD 460 MILES TOTAL AT THAT TIME. THE VEHICLE NOW HAS 940 TOTAL MILES AND I AM BEGINNING TO FEEL HARD SHIFTING AND SLIPPING WHILE DRIVING, THAT SEEMS TO ME THAT THE NEW TRANSMISSION THEY PUT IN THE VEHICLE IS GOING BAD ALREADY. I WILL BE TAKING IT BACK TO THE DEALER TO HAVE THEM LOOK AT IT. I WAS ON A CITY STREET GOING STRAIGHT AT APPROXIMATELY 30MPH. *TR
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Quick Summary
The 2020 Jeep Grand Cherokee has 14 Power Train complaints on file. Review the timeline above for detailed owner experiences.