2022 Kia Sorento: start-stop system problems

Filed Aug 13, 2026 · Acceleration, Engine · CA

Vehicle flashes Auto Start Stop icon on the dashboard, which is not commonplace. When this occurs, the vehicle can not accelerate when the accelerator is actuated. The vehicle can not accelerate past 40mph and the RPM is sporadic. This happens randomly and can not be diagnosed by the dealership. Multiple dealerships have tried and none can duplicate this issue. This is a severe safety concern and seems to be common all over multiple forums.

Filed Jun 1, 2026 · Electrical · LA

The Auto Start-Stop System light came on flashing while driving. Vehicle wouldn’t accelerate while in heavy traffic. Pulled over to the shoulder and turned vehicle off. Attempted to start vehicle again and would not start. Had to get the vehicle towed. Positive battery post is loose and screw is tightened as much as possible.

Filed Jul 26, 2024 · Electrical · IA

Automatic stop start admission. Was turning right on a green light. The vehicle stalled while trying to take the turn. All the dash lights flickered and the dashboard made a buzzing sound. Then vehicle then shut off, while trying to take the turn. There was 4 people in the vehicle 2 of them small children. We almost got hit on the left side of the vehicle. Because the light that was green had turned red. This is the fourth time the vehicle had failed us. By shutting off while driving. We having taken the vehicle in 2 times to be inspected by Kia, but have been told there is nothing wrong with the vehicle. But we are still having issues. There is no warning signs that the vehicle is going to shut off. It shows it after the fact.

Filed Jun 7, 2024 · Fuel system · WV

On 3/5/24, the vehicle began to limp shortly after starting it and driving a little ways. I pulled off and a majority of the lights on the dash came on. I turned vehicle off and then on, and the check engine light stayed on. I was then able to drive car as normal. The check engine light eventually went off. Service department said they were unable to do anything unless the light was on. For the next few months, upon starting the car, the auto start/stop light would flash on the dashboard. The car would limp until you turn the car off and back on. Once turned back on, the car would drive normally. On 5/20/24, check engine light came back on. Drove to dealership where I had to schedule an appointment for diagnostic testing. On 6/6/24, I had diagnostic testing done at a service department where they found that the fuel rail had gone bad.

Filed Jan 27, 2023 · Electrical, Transmission · 13,882 miles · CA

The contact owns a 2022 Kia Sorento. The contact stated that while driving at various speeds, the vehicle was jerking and was losing motive power while at a stop light. The vehicle was able to restart, and no warning lights were illuminated. The vehicle was taken to a local dealer, where an unknown software update was completed. The vehicle was repaired; however, the contact stated that the failure recurred and the gauges on the instrument panel were failing to display and that the auto START/STOP function and the downhill brake control were activating and deactivating independently while driving on flat surfaces. The vehicle was taken back to the dealer, where the failure could not be duplicated. The contact then stated that when she was shifting the gear into drive(D) the vehicle started reversing, and while shifting into park(P), the vehicle moved forward. Additionally, the contact stated two unknown warning lights had illuminated intermittently and that while driving at approximately 50 MPH, the Forward Collision Avoidance Emergency Automatic Braking activated independently and caused the vehicle to swerve. The vehicle was then taken to Kia of Valencia (24095 Creekside Rd, Santa Clarita, CA 91355) where it was diagnosed that the Lo-Jack system needed to be removed; however, after the removal the contact stated that the failure recurred. The contact was awaiting another service appointment for additional diagnostic test and repair. The manufacturer was made aware of the failure and a case was opened. The approximate failure mileage was 13,882.