Seat Belt Tensioner: Description and Operation

SAFETY BELT RETRACTOR AND PRETENSIONER

The front safety belt retractors use a safety belt pretensioner system. The pretensioner is a pyrotechnic device that removes excess webbing slack from the safety belt. The pretensioners are activated when the restraints control module (RCM) detects an impact force exceeding a programmed limit and deployment is required.

For safety belt retractor pretensioner diagnostic information or disposal information, refer to Air Bag Systems.