While operating the vehicle inside of a car wash, with the transmission in Neutral and the engine at idle (car was propelling the vehicle) the dash chimed, showed an error message for STOP START REQUIRES RESET, shifted into park and set the parking brake uncommanded. This resulted in my vehicle being struck from behind by another vehicle inside of the car wash. The only remedy to get moving again was to STOP the engine, manually shit to PARK, restart, then release the parking brake.