GM Service Manual Online
For 1990-2009 cars only

Accident With or Without Air Bag Deployment -- Component Inspections

CAUTION:  Proper operation of the Supplemental Inflatable Restraint (SIR) sensing system requires that any repairs to the vehicle structure return the vehicle structure to the original production configuration. Not properly repairing the vehicle structure could cause non-deployment of the air bag(s) in a frontal collision or deployment of the air bag(s) for conditions less severe than intended.

After any collision, inspect the following components as indicated. If you detect any damage, replace the component. If you detect any damage to the mounting points or mounting hardware, repair the component or replace the hardware as needed.

    • Steering column - Perform the steering column accident damage checking procedures.
    • IP Knee Bolsters - Inspect the knee bolsters for bending, twisting, buckling, or any other type of damage.
    • IP brackets, braces, etc. - Inspect for bending, twisting, buckling, or any other type of damage.
    • Seat Belts - Perform the seat belt operational and functional checks. Refer to Operational and Functional Checks in Seat Belts.

Accident With Frontal Air Bag Deployment -- Component Replacement and Inspections

After a collision involving seat belt side buckle pretensioner deployment and frontal air bag deployment, replace the following components. If you detect any damage to the mounting points or mounting hardware, repair or replace the mounting points and mounting hardware as needed.

    • Inflatable restraint IP (inflator) module
    • Inflatable restraint steering wheel (inflator) module
    • Driver and passenger seat belt side buckle pretensioners
    • Inflatable restraint Sensing and Diagnostic and Seat Belt Pretensioner Module (SDM)

After a collision involving frontal air bag deployment, inspect the Inflatable restraint steering wheel module coil and the coil wiring pigtail for melting, scorching, or other damage due to excessive heat. Perform this component inspection in addition to the inspections indicated above in Accident With or Without Air Bag Deployment. If you detect any damage, replace the component. If you detect any damage to the mounting points or mounting hardware, repair the component or replace the hardware as needed.

Accident With Seat Belt Side Buckle Pretensioner Deployment -- Component Replacement and Inspections

After a collision involving seat belt side buckle pretensioner deployment, replace the driver and passenger seat belt side buckle pretensioners. If you detect any damage to the mounting points or mounting hardware, repair or replace the mounting points and mounting hardware as needed.

If Current DTC 56 is set, the SDM must also be replaced. This is because the vehicle has been involved in 3 pretensioner-only deployment collisions, the maximum number of pretensioner-only deployments allowed with one SDM. Select Reset Pretensioner After Deployment from the SIR Data List using the scan tool to verify that the seat belt side buckle pretensioners have deployed 3 times.