2020 Jeep Grand Cherokee: multiple warning lights

Filed Mar 7, 2026 · Electrical, Engine · PA

on or around 12/15/2024 (42257 miles on vehicle) jeep will power on start and stop, all alights on dashboard light, unable to shift into or out of gear when parked. When driving but stopped at a red light car shut off. Attempted to restart unable to, car put into park attempted to restart lights came on but engine didn't turn over. Tried again few minutes laster and the car turned on. Returned apartment, parked car. was unable to shift car into park, car shut off on its own again, car then able to go into park. A few days later start engine, car turns on put car in reverse, car shut off on its own, all lights and warnings on dashboard light up and stay on. Unable to start engine, unable to shift car into park. turn car off, shift into park, on 12/17/24 Car towed to Lake Chrysler dodge jeep ram auto Lewistown PA. told that it was the can bus connector needed to be replaced. Part replaced. 10/10/25 (54630 miles) car in for inspection, oil change, reported to mechanic engine was making high pitched sound/noise when driving up steep hill on highway the week prior. Was told by mechanic "that is normal when driving up steep hills, after a long drive" " we didn't hear it or find anything" Car continued to make this noise on the same hill since. Car in for oil change at David Dodge on 1/12/26 (58,974 miles) reported to mechanic again that engine continues to make a high pitched sound/noise when going up hills, on highway drives and after longer drives. per shop nothing was found. Asked if I should make an appointment for it to be tested and told no not needed. On 3/2/26 check engine light on, waring start/stop unavailable service stop/start system this happened off and on for next few days. Car brought to mechanic on 3/6/26 (60,000 miles) diagnosic test run cylinder misfire, R and R intake manifold to check coil and spark coolant found on spark plug, borescope #3 cylinder Head gasket, cylinder head, block issue . Recommend total engine and radiator replacements

Filed Dec 2, 2024 · Transmission · NY

The car will be driving and it all of a sudden stops and has all the lights on the dashboard coming on. Every single warning light coming on the car comes to a stop and will not move. This has happened three times and the dealership tells me they don’t know what the issue is.

Filed Nov 29, 2023 · Driver assistance, Electrical · PA

My Jeep is a 2020, and I recently bought it last June as a certified preowned vehicle from a Jeep dealership. I was having electrical and fuse problems when my moon roof on the vehicle stopped working. Recently driving home at night, I lost all lights on the vehicle. Headlight, high beams, brake lights and turn signals, the lights do not work on the vehicle and I was driving in the complete dark. My gas tank also was having issues and it does not allow me to fill the tank because it thinks it is always “full” even though it is not. I brought the vehicle to the dealership and they stayed I have a completely fried computer system as well as the vent tube on my gas tank is “clogged” and the entire gas tank needs to be replaced. I have owned the car for less than a year and a half, it is only three years old and the warranty JUST expired. There is no way a vehicle with only 32,000 miles has a completely failed computer system along with needs a full gas tank replacement. They are stating to fix the safety issue it is $2700. The manufacturer is taking zero responsibility. Roughly 6 months before I took it to them because I was having fuse issues.

Filed Mar 19, 2023 · Electrical, Engine · MI

1.The electrical/engine/powertrain systems failed 3 times. The vehicle is available for inspection. 2.As the problem progressed, the car would only go forward, no ability to go in reverse, or to be put in park. 3.The dealership replaced the ABS Module, then later the Engine Control Module. 4.Event 1: September 1, 2022 Warning light for the stop/start feature came on, also the ABS light and check engine light. Dealership kept the car for the day, did a diagnosis, returned the vehicle stating it was safe to drive, and that an ABS Module had been ordered. Would contact me to schedule the repair. Event 2: September 8, 2022 Dashboard lit up like a Christmas tree, all warning lights came on, as well as all lights on the gearshift panel/center console, which kept blinking. Car would only go forward. Dealership installed ABS Module and returned the car to me. Event 3: September 29,2022 Warning light for the stop/start feature and check engine light came on again. I took the car to my local dealership with major concerns that the previous repair was not the only problem occurring and left it there. The Engine Control Module was eventually replaced. 5. I had no use of my Jeep Grand Cherokee from September 29 until November 8, 2022. 6. I have a major concern about the safety of this vehicle.

Filed Mar 30, 2021 · Electrical, Engine · 13,100 miles · OH

Vehicle in motion city & highway. The entire vehicle dies. The engine turns off, all the lights die, no steering, dashboard & radio die. A few seconds later the engine restarts on its own, lights come on, dashboard lights up and radio works. The one remaining issue that indicates the problem is that the radio complete resets to what I believe is the original settings. This problem has been ongoing since the vehicle was acquired. It has been in the dealerships multiple times and they of course can not duplicate so they send me on my way. They have held the jeep to drive but claim they cannot duplicate. Also there are no codes showing when they check. Try driving at 65 MPH with a dead car. Again this has been happening for about a year