UNKNOWN. On 4/13/25 morning, I was with my wife driving towards a park and our car decelerated suddenly from 37 miles to 20 miles and then slowed down. Luckily no driver behind us was close otherwise the car would have crashed. We pulled over to the side of the road and shut off the engine. Restarted and the car seemed to run normal. The dealer who sold this car checked on 4/16/25 and they could not find any problem and asked to bring back if it happens again. We are totally speechless and don’t know what to do next.