For 1990-2009 cars

The Supplemental Inflatable Restraint (SIR) system deploys an air bag from the center of the steering wheel during certain frontal crashes. This system supplements the protection offered by the driver's seat belt. The air bag deploys during a frontal crash of sufficient force up to 30 degrees off the centerline of the vehicle. The steering column is collapsible. Inspect the steering column after an accident in order to determine if the SIR system deployed.