Our 2009 Nissan Titan was involved in a roll over accident and no air bags deployed. The driver side air bags did NOT deployed at all. My son ended up with a broken collarbone, fractured back rib and possibly humorous fracture on muscle injuries the accident. My insurance company has inspected the vehicle and has possession of it at a salvage yard. There were no indications that there was something wrong with the air bags or the air bag sensors.