TL*THE CONTACT OWNS A 2008 MAZDA, MAZDA3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH, THE VEHICLE HIT A WASHBOARD AND ROLLED DOWN A HILL. THE AIR BAGS DID NOT DEPLOY AND THE SEAT BELTS LOOSENED. THE CONTACT SUSTAINED NECK AND BACK INJURIES. A POLICE REPORT WAS FILED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000.