TL* THE CONTACT OWNED A 2012 NISSAN VERSA. WHILE DRIVING APPROXIMATELY 40 MPH, ANOTHER VEHICLE REAR ENDED THE CONTACT'S VEHICLE. THE CONTACT'S VEHICLE WENT AIRBORNE AND FLIPPED OVER THREE TIMES. NONE OF THE AIR BAGS DEPLOYED. THE CONTACT MENTIONED THAT ALL FOUR OCCUPANTS SUSTAINED INJURIES, TWO OF WHICH REQUIRED MEDICAL ATTENTION FOR INJURIES TO THE HEAD AND NECK. A POLICE REPORT WAS FILED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS DESTROYED. THE APPROXIMATE FAILURE MILEAGE WAS 37,000.