Town Car V8-4.6L VIN V Flex Fuel (2006)
Seat Belt Tensioner: Description and Operation
Safety Belt System
SAFETY BELT PRETENSIONERS
The front safety belt retractors use a safety belt pretensioner system. This works in conjunction with the front and side air bag system mounted in the
steering wheel, instrument panel and front seat backrest. The pretensioner is a pyrotechnic device that removes excess webbing slack from the safety belt.
When the pretensioner deploys in the retractor, excess slack is removed from the lap and shoulder safety belt. The pretensioners are activated when the
restraints control module (RCM) detects a force exceeding a programmed limit. If the vehicle is involved in a collision that results in deployment of the
front or side air bags and 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.
