SIR System Description

SIR SYSTEM DESCRIPTION AND OPERATION




The supplemental inflatable restraints (SIR) is a safety device used in conjunction with the seat belt. The air bag does not replace the function of the seat belt. The driver and the passengers must always fasten their seat belts and adjust them for a proper fit.

The SIR is designed to protect the driver and the front seat passenger in the event of a significant frontal impact to the vehicle. The air bags deploy if the force is applied from a direction within 30 degrees of the vehicle's centerline.

The SIR system consists of a
- Driver air bag module
- Driver side air bag module (except North America models)
- Passenger air bag module
- Passenger side air bag module (except North America models)
- Driver's and front passenger's seat belt pretensioners (and load limiter for some model)
- Sensing and diagnostic module (SDM)
- Clock spring
- Wire harness and connectors
- AIR BAG indicator on the instrument cluster
- Side air bag sensor (except North America models)