TL*THE CONTACT OWNS A 2001 GMC SIERRA. WHILE DRIVING 55 MPH, THE CONTACT STATED THAT SHE WAS INVOLVED IN A HEAD ON COLLISION. THE AIR BAGS DID NOT DEPLOY AND THERE WERE NO WARNING LIGHTS. THE CONTACT SUSTAINED MAJOR INJURIES TO HER KNEES, NECK AND BRUISES ON HER CHEST. THE VEHICLE WAS TOWED AND DEEMED AS DESTROYED. THE DEALER WAS CONTACTED, INSPECTED THE VEHICLE AND WAS DID NOT INFORM HER WHAT PREVENTED THE AIR BAGS FROM DEPLOYING. A POLICE REPORT WAS FILED. THE FAILURE AND CURRENT MILEAGES WERE 76836.