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 to the mounting hardware, repair the component or replace the hardware as needed:

    • Steering Column -- Inspect the steering column for accident damage. Refer to Steering Column Accident Damage Inspection - Off Vehicle in Steering Wheel and Column.
    • 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.
    • IP Steering Column Reinforcement Plate -- Inspect for bending, twisting, buckling, or any other type of damage.
    • Seat Belts -- Perform the Operational and Functional Checks. Refer to Operational and Functional Checks in Seat Belts.

Accident With Air Bag Deployment - Component Replacement and Inspections

After a collision involving air bag deployment, replace the following components:

    • Inflatable restraint IP module
    • Inflatable restraint steering wheel module
    • Inflatable restraint sensing and diagnostic module (SDM)

Perform inspections on the following components, in addition to the inspections indicated above in Accident With or Without Air Bag Deployment.

    • Inflatable restraint steering wheel module coil and coil wiring pigtail - Inspect for melting, scorching, or other damage due to excessive heat.
    • Mounting points and mounting hardware for the inflatable restraint IP module, inflatable restraint steering wheel module, and SDM - Inspect for any damage and repair or replace each component as needed.