THIS CAR WAS INVOLVED IN A THREE CAR COLLISION. A VAN TURNED LEFT SUDDENLY AND WITHOUT SIGNALING. THE CAR BEHIND THE VAN SLAMMED ON BRAKES. THE NEXT CAR HIT THE FIRST CAR IN THE BACK. THE THIRD CAR (MY CAR) HIT THE SECOND CAR IN THE BACK AND PUSHED HIM INTO THE FIRST CAR. MY DAUGHTER WAS DRIVING AND I WAS IN THE FRONT PASSENGER SEAT. THE FRONT AIR BAGS AND ALL FOUR OF THE SIDE CURTAIN AIR BAGS DEPLOYED. WE BOTH HAD ON OUR SEAT BELTS BUT THEY DID NOT LOCK. I, SEATING IN THE FRONT PASSENGER SEAT WITH MY SEAT BELT ON, WAS PROPELLED INTO THE FRONT WINDSHIELD. THE WINDSHIELD HAS A CIRCULAR PATTERN OF CRACKS WHERE I HIT IT WITH MY FACE. LUCKILY, MY FACE WAS ONLY CUT AND SEVERELY BRUISED WITH NO BROKEN BONES. I AM CONCERNED THAT THE SEAT BELTS DID NOT LOCK. NEITHER THE SEAT BELT NOR THE AIR BAGS PREVENTED ME FROM HITTING THE WINDSHIELD. MY DAUGHTER'S SEAT BELT ALSO DID NOT LOCK BUT THE AIR BAG PREVENTED HER FROM BEING SEVERELY INJURED.