TL*THE CONTACT OWNS A 2005 DODGE MAGNUM. WHILE THE VEHICLE WAS PARKED, THE REAR LIFTGATE OPENED AND REMAINED IN A STATIONARY POSITION. UNEXPECTEDLY, THERE WAS AN ABRUPT CLOSURE OF THE LIFTGATE. THE CONTACT SUSTAINED A MINOR INJURY TO THE NECK AND SHOULDER AREA AS A RESULT OF THE UNEXPECTED CLOSURE OF THE LIFTGATE. THE VEHICLE HAS NOT BEEN REPAIRED AT THIS TIME. THE VIN WAS UNKNOWN. THE FAILURE AND CURRENT MILEAGES WERE UNAVAILABLE.