I WAS IN AN ACCIDENT AND THE SEAT BELT ON MY THREE YEAR OLD SON'S CAR SEAT CAME UNDONE. IT WAS THE BELT THAT GOES FROM THE CAR TO THE CAR SEAT. THE CAR FLIPPED AND HIS SEAT WENT FLYING AROUND IN THE CAR. THE AIR BAGS NEVER DEPLOYED WHEN THE CAR FLIPPED AND HIT A DIRT EMBANKMENT. *JB