TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE THE VEHICLE WAS PARKED ON AN INCLINE WITH THE CONTACT'S FOOT ON THE BRAKE PEDAL, THE VEHICLE WAS STARTED AND PROCEEDED TO SHIFT FROM PARK TO DRIVE. THE VEHICLE STARTED TO ROLL BACKWARDS AND STRUCK THE VEHICLE IN ITS REAR. THERE WERE NO INJURIES AND A POLICE REPORT WAS FILED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 77,595.