GM Service Manual Online
For 1990-2009 cars only

The Supplemental Inflatable Restraint (SIR) system supplements the protection of the driver and passenger seat belts.

The Supplemental Inflatable Restraint (SIR) system deploys an airbag from the following locations:

    • The center of the steering wheel
    • The top of the right side of the instrument panel

The air bag deploys when the vehicle is involved in a frontal crash of sufficient force up to 30 degrees off the centerline of the vehicle.

Additional crash energy is absorbed by the following elements:

    • A knee bolster beneath the instrument panel on the driver's side of the vehicle
    • A knee bolster beneath the instrument panel on the passenger's side of the vehicle
    • A collapsible steering column