Seat Belt Buckle: Description and Operation

The driver and front outboard passenger safety belt buckle and pretensioner are secured to the front seat assembly on the seat track. This allows the front safety belt buckle end to move with the front seat.

The belt and buckle assembly pretensioner is a pyrotechnic device that removes excess webbing from the safety belt system. The belt and buckle assembly pretensioner uses the same crash sensor system as the air bag Supplemental Restraint System (SRS). When the belt and buckle assembly pretensioner deploys, the buckle moves downward, pulling excess webbing from the lap and shoulder safety belts.

If the safety belt buckle and pretensioner assembly is deployed, a new assembly must be installed.