Freestar V6-4.2L VIN 2 (2004)
Seat Belt Tensioner: Description and Operation
Safety Belt System
SAFETY BELT PRETENSIONERS
The front safety belt buckles use a safety belt pretensioner system. This works in conjunction with the front air bag system mounted in the steering
wheel and instrument panel. The pretensioner is a pyrotechnic device that removes excess webbing slack from the safety belt. When the pretensioner
deploys in the buckle, excess slack is removed from the lap and shoulder safety belt. The pretensioners are activated when the restraints control
module (RCM) detects a frontal impact force exceeding a programmed limit.
If the vehicle is involved in a collision that results in deployment of the safety belt pretensioners, a new 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 installed.
