F 150 2WD Pickup V8-5.4L SOHC SC VIN 3 (2003)
Seat Belt Buckle: Description and Operation
Safety Belt Buckle and Pretensioner
SuperCab vehicles with Seat Integrated Restraints (SIR) are equipped with safety belt buckle and pretensioner. These are for the front outboard
occupants, located on the inboard side of the seats. To identify a SIR seat, see Seat Integrated Restraints (SIR) Identification.
The safety belt buckle and pretensioner is a pyrotechnic device that removes excess webbing from the safety belt system. When the front air bag
system is deployed, the pretensioner in the buckle deploys, causing the buckle to move downward, pulling excess webbing from the lap and shoulder
safety belts.
Safety Belt, Buckle End-Front
The outboard front safety belt buckle end is secured to the front seat. This allows the outboard front safety belt buckle end to move with the front seat.
