TL* THE CONTACT OWNED A 2010 TOYOTA PRIUS. WHILE PARKING THE VEHICLE, IT UNEXPECTEDLY ACCELERATED AND STRUCK ANOTHER VEHICLE BEFORE CRASHING INTO AN APARTMENT UNIT. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS CALLED AND PROVIDED THE CONTACT WITH AN INVESTIGATOR WHO REMOVED A BOX FROM THE VEHICLE, WHICH WOULD DETERMINE IF THE FAILURE WAS DUE TO DRIVER ERROR OR A SAFETY DEFECT. THE MANUFACTURER DETERMINED THAT IT WAS DRIVER ERROR. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 53,000.