The contact owned a 2008 Chevrolet Silverado. The contact stated that while driving at approximately 70 MPH and making a right downhill turn, he crashed into the rail guard before impacting a tree where the vehicle came to a stop. No warning lights were illuminated. No air bags deployed. The contact was concerned about whether the air bags should have deployed for the type of impact experienced. The contact stated that the Driver's side seat belt had locked. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was deemed a total loss and towed to a local tow yard, where it remains. The contact fell unconscious due to the impact and was rushed to a local medical center via helicopter. The contact sought medical attention for injured knees, 7 fractured ribs, a broken right arm, and was left bedridden. A police report was not filed. The manufacturer was not made aware of the failure. The failure mileage was approximately 278,000.