MY WIFE WAS DRIVING THE CAR. IT WAS A DARK ROAD IN THE NIGHT. PERHAPS SHE DIDN'T SEE THE STOP SIGN AND CRASHED INTO A VEHICLE COMING FROM RIGHT HAND SIDE, GOING IN THE SAME DIRECTION MY WIFE WAS GOING. MY WIFE CRASHED THE OTHER VEHICLE FROM BEHIND. IT WAS SERIOUS CRASH IN WHICH THE ENTIRE FRONT PORTION OF THE CAR IS DAMAGED. BUT THE AIR BAGS DID NOT COME OUT. MY WIFE HAD HER HEAD HIT THE STEERING WHEEL AND HAD AN INJURY. MY COMPLAINT IS "WHY DID THE AIR BAG NOT INFLATE IN SUCH A SERIOUS CRASH?" ..UPDATED 10/06/14 *BF. UPDATED 05/13/2015 *JS