Air Bag Systems: Description and Operation

AIR BAG AND SAFETY BELT PRETENSIONER SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

The supplemental restraint system (SRS) is designed to provide increased collision protection for front seat and second row outboard occupants in addition to that provided by the 3-point safety belt system. Safety belt use is necessary to obtain the best occupant protection and to receive the full advantage of the SRS.

This vehicle line contains dual stage deployment (advanced restraint system) driver and front passenger air bag modules and is also equipped with seat side air bag modules in the front seats. These vehicles are also equipped with driver and front passenger safety belt buckle pretensioners and adaptive load limiting retractors and safety canopies that deploy from the A-pillar to the C-pillar upon a side impact or if a rollover condition is detected.

In addition to dual stage deployment (advanced restraint system) driver and front passenger air bag modules, this vehicle is equipped with a passenger air bag adaptive tether as well as driver and passenger air bag canister vents.

A unique restraints control module (RCM) is used on these vehicles which will detect a potential rollover condition. In addition, 2 front impact severity sensors are mounted to the lower radiator support, 2 first row side impact sensors (mounted in both front doors), 2 second row impact sensors (mounted on each C-pillar), a seat position sensor (mounted to the driver seat) and a usage detection switch is added to the front driver and passenger outboard buckles.

Vehicles are also equipped with an occupant classification sensor (OCS) system as part of the front passenger seat. The OCS system includes 2 OCS rails and an occupant classification system module (OCSM).

Air Bag And Safety Belt Pretensioner Supplemental Restraint System (SRS) Components - Explorer/Mountaineer (Part 1):

Air Bag And Safety Belt Pretensioner Supplemental Restraint System (SRS) Components - Explorer/Mountaineer (Part 2):

Air Bag And Safety Belt Pretensioner Supplemental Restraint System (SRS) Components - Explorer Sport Trac (Part 1):

Air Bag And Safety Belt Pretensioner Supplemental Restraint System (SRS) Components - Explorer Sport Trac (Part 2):