VEHICLE WAS INVOLVED IN FRONTAL CRASH. UPON IMPACT, DRIVER'S SEATBELT DID NOT LOCK UP, CAUSING DRIVER TO HIT WINDSHIELD. ALSO, DRIVER'S AIRBAG DEPLOYED AFTER DRIVER HIT WINDSHIELD AND WAS THROWN BACK INTO SEAT, CAUSING A MAJOR CONCUSSION. VEHICLE WAS A TOTAL LOSS. *AK