TL* THE CONTACT OWNS 2003 LINCOLN NAVIGATOR. THE CONTACT STATED THAT WHILE STANDING OUTSIDE OF THE VEHICLE, THE VEHICLE STARTED TO ROLL BACKWARD. THE ENGINE WAS OFF AND THE TRANSMISSION WAS IN PARK. THE CONTACT RAN TO CATCH VEHICLE AND WAS INJURED FROM A FALL. DRIVER SUFFERED SPRAINED ANGLE, BODY BRUISING. THE VEHICLE CRASHED INTO ANOTHER VEHICLE. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS NOT AVAILABLE.