TL* THE CONTACT OWNS A 2012 CHRYSLER 300. WHILE THE VEHICLE WAS PARKED, IT ROLLED BACK IN REVERSE AND KNOCKED THE CONTACT TO THE GROUND. THE VEHICLE CRASHED INTO A DUMPSTER ACROSS THE STREET. THE BUMPER OF THE VEHICLE WAS DAMAGED. THE CONTACT SUSTAINED INJURIES TO THE HEAD FROM THE IMPACT OF THE BOTTOM OF THE VEHICLE DOOR. MEDICAL ATTENTION WAS NOT REQUIRED AND A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS UNKNOWN.