WHILE DRIVING 35 MPH IN A PARKING LOT THE SUN TEMPORARILY IMPAIRED THE DRIVER'S VISION. THIS CONDITION CAUSED THE DRIVER TO HIT A FENCE HEAD ON. BOTH FRONTAL AIR BAGS DID NOT DEPLOY. THE DRIVER SUSTAINED HEAD AND NECK INJURIES AND WAS TRANSPORTED BY AMBULANCE TO THE HOSPITAL. THE VEHICLE WAS TOWED TO THE DEALER FOR ANALYSIS. THE VEHICLE WAS THEN TAKEN TO A BODY SHOP WHERE BOTH MECHANICS DETERMINED THAT THE PROBLEM WAS DUE TO AIR BAG FAILURE. THE AIR BAGS SHOULD HAVE DEPLOYED. *AK THE CLOCK SPRING BUSTED AND FAILED TO RELEASE THE AIR BAGS. THE AIR BAG SENSORS IN THE FRONT FAILED TO DEPLOY THE AIR BAGS. *SC *JB