Excursion 2WD V10-6.8L VIN Z CNG (2003)
Seat Belt Tensioner: Description and Operation
Occupant Restraints - Active
Pretensioner System
All Excursion vehicles have a pretensioner system for the front outboard occupants. The front outboard safety belt retractors or the front outboard
safety belt buckles use a pretensioner system. This works in conjunction with the front air bag system mounted in the steering wheel and instrument
panel.
If the vehicle is involved in a collision that results in deployment of the front air bags and safety belt pretensioners, the driver and passenger seat belt
system (including safety belt buckle and pretensioners or safety belt retractor and pretensioners, safety belt retractors, safety belts, buckles and height
adjusters), must be replaced.
For diagnostic information, refer to Air Bag Systems.
For pretensioner retractor disposal information, refer to Air Bag Systems.
Safety Belt Retractor Pretensioner
All vehicles without Seat Integrated Restraints (SIR) are equipped with safety belt retractor pretensioners, for the front outboard occupants. To
identify a SIR seat, refer to Seat Integrated Restraints (SIR) Identification.
When the front air bag system is deployed, the pretensioner in the retractor deploys, causing the retractor spool to rotate. The rotating spool action
removes excess webbing from the safety belt assembly, tightening the webbing around the occupant.
