There are 2 owner-reported speed control & cruise complaints for the 2020 Toyota Prius Primein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2020 Toyota Prius Prime. The contact stated that while pulling into a parking lot, traveling down the aisle, and driving around the end cap to the second aisle, pulling into the parking spot at 5 MPH, the vehicle suddenly accelerated. The wheels squealed. The vehicle traveled through the spot and sideswiped another vehicle, and stopped. There were no reported injuries or fire. A police report was filed. The vehicle was serviced a week prior. The local dealer was contacted, who referred to the manufacturer. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 54,300.
I WAS GOING TO PARK MY CAR IN PARKING LOT OF MY APARTMENT. I PUSHED THE BAKER, THE CAR DIDN'T DECREASE THE SPEED OR STOP, BUT ACCELERATED. IT WAS JUST OUT OF CONTROL AND CRASHED TO THE WALL. THE SENSOR SYSTEM DIDN'T DO ANY JOB, NOT EVEN A WARNING.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026