Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Jeep Grand Cherokee owners, lightly cleaned up (personal details are redacted by NHTSA).
It was a clear day as I arrived at work. While pulling into a parking spot, the Jeep suddenly accelerated over a curb and into a tree. I was able to turn the wheel upon seeing the tree, which helped me avoid hitting other vehicles on the opposite side of the island. I had to depress the brakes multiple times before the vehicle finally stopped just short of another tree. During the incident, I was on a conference call. The attendees confirmed that there were no warning sounds from the vehicle-only the sound of the impact. Notably, the airbags did not deploy. The front driver-side area sustained extensive damage, causing the driver's door to jam. Fortunately, I did not suffer any physical injuries. The vehicle was towed to an auto body repair shop. When connected to a scanner, no error codes were detected. Repairs took nearly five weeks. …
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that the START/STOP icon remained illuminated. The contact stated that approximately a day or two later the vehicle failed to start. The vehicle was jumpstarted and driven to the dealer where the vehicle was diagnosed, and it was determined that the battery was failing. The dealer replaced both batteries. The failure reoccurred approximately one and a half week later. The vehicle was taken to the dealer and the diagnostic result was confirmed however, the vehicle was not repaired. The contact stated that while retrieving the vehicle the vehicle failed to start. The dealer repaired the vehicle however, approximately one week after having the batteries replaced 4 times, the failure reoccurred. The dealer had mentioned an instrument cluster shortage and a USB shortage. The vehicle had not been repaired. …
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that the air bag and seat belt failure warning lights were illuminated. After filling the fuel tank and attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to the dealer, who diagnosed that the battery and fuse box water pump had failed and were replaced. The failure persisted. The dealer inspected the vehicle again and then diagnosed that the Occupant Restraint Control module had failed and caused the air bag to deploy inadvertently, failed to deploy, and needed to be replaced. The contact became aware of NHTSA Campaign Number: 15V046000 (Air Bags); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was informed of the failure. The manufacturer confirmed the VIN was not included. …
I bought my 2020 Jeep Grand Cherokee Trailhawk used from Carmax and after barely having it 7 months it is now totaled by Insurance company. The reason: driving home from work on state highway at approx. 45mph on November 24, 2021 after dark. Came over rise in road to see about 10 vehicles completely stopped in front of me about 100 yards away. I applied the brakes and nothing happened. Took foot off brake pedal & tried again... nothing. I had to swerve off road to keep from running into back of vehicle(s) stopped in front of me. Was able to safely miss damaging/injuring any other vehicles/people. Struck a tree on the left front of Jeep. Applying brakes did not stop or slow my Jeep Grand Cherokee's speed. When tree was struck at approx. 45mph the airbags did not even deploy.
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that the vehicle intermittently failed to start immediately, but started after the second attempt. The battery was replaced; however, soon after the battery replacement, the failure recurred, and the vehicle was taken to a dealer. A diagnostic test was performed, and the contact was informed that the failure was related to the fuel pump or the electrical system. The vehicle was not repaired and remained withthe dealer. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 22V406000 (Fuel System, Diesel) however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the heater was activated on the instrument panel, but the A/C inadvertently turned on and then returned to heat. The instrument panel then malfunctioned, rendering the navigation system inoperable. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA Campaign Number: 24V652000 (Electrical System); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 44,000.
The contact owns a 2020 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power with an unknown audible alert warning. Additionally, the vehicle intermittently failed to start. AAA arrived on the scene and jumpstarted the vehicle. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure and no error codes were retrieved. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 15,500. The VIN was unavailable.
Odometer Fraud. The contact purchased a 2020 Jeep Grand Cherokee. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 67,000 and at the time of registration, it was discovered that the mileage was 237,277.
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. …
On the 26th of April 2026, the transfer Case on my 2020 Grand Cherokee (with less 114,000 miles) failed during highway travel. This resulted in a sudden downshift and temporary deceleration followed by illumination of "Service 4wd" display. A short time after, the "Service Electronic Stability Control" indicator displayed followed by another downshift and the unattended transition of the 'Select_Terrain' from 'Auto' to 'Snow'. We were unable to turn off these settings. On the next day, we returned the Jeep to our CDJR dealer for repair. After inspection, the service agent reported that the Jeep experienced a "Transfer Case failure" and further recommended that I consider [purchasing] a new vehicle as these issues seem to be piling up. Failure of this nature is not normal wear. …
Electrical complaints in other Grand Cherokee years
Frequently asked questions
How common are electrical problems on the 2020 Jeep Grand Cherokee?
NHTSA has 74 complaints about the electrical system of the 2020 Jeep Grand Cherokee, 31% of the model year's 241 complaints. The component named most often is 12v/24v/48v battery (1 mentions).
Is there a recall for 2020 Jeep Grand Cherokee electrical problems?
No. NHTSA lists no electrical system recall for the 2020 Jeep Grand Cherokee, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Jeep Grand Cherokee electrical problems start?
Half of the complaints with a recorded mileage happened before about 12,000 miles, and 71% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 0 fires and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.