Air Bag And Safety Belt PRETENSIONER Supplemental Restraint System (SRS)

The air bag 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. These vehicles are also equipped with driver and front passenger safety belt retractor pretensioners, side air curtains and seat side air bag modules in the front seats.

Side air curtains deploy from the headliner, protecting the first and second row outboard occupants during a side impact. Seat side air bag modules deploy from the outboard front seat backrest upon a side impact. In addition, a front impact severity sensor is mounted to the lower radiator support, a seat position sensor is 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 includes 2 OCS rails and an occupant classification system module (OCSM).

The serviceable air bag and safety belt pretensioner SRS components are shown in the following illustration.

Fig 1: Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) Components

Courtesy of FORD MOTOR CO.