Seat Belt PRETENSIONERS
WARNING: This page is about a different car, the 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, 2002 Ford Excursion, and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The front seat belt pretensioner is integrated with seat belt retractor or seat belt buckle assembly, depending on model. Pretensioner contains a pyrotechnic device, that when signaled by the Restraints Control Module (RCM), deploys to remove excess webbing from seat belt system, tightening webbing around occupant.