GM Service Manual Online
For 1990-2009 cars only

Accident With or Without Air Bag Deployment - Component Inspections

   • 

Important: 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 required:

  • The instrument panel (IP) area - inspect for bending, twisting, buckling, or any other type of damage.
  •    • 
  • The steering column - inspect for excessive movement (check for shear capsule separation).
  •    • 
  • The seat belts - perform the seat belt operational and functional checks. Refer to Repairs and Inspections Required After a Collision .
  •    • 
  • The IP mounting points and brackets - inspect for bending, twisting, buckling, or any other type of damage.
  •    • 
  • The seats and seat mounting points - inspect for bending, twisting, buckling, or any other type of damage.
  •    • 
  • The door and garnish trim.
  •    • 
  • Front end sensors.
  • Accident With Frontal Air Bag Deployment - Component Replacement and Inspections

       • 

    Important: The following must be replaced after an accident:

  • Inflatable restraint SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
  •    • 
  • Front end sensors. Refer to SIR System Description and Operation .
  •    • 
  • Seat belt pretensioners. Refer to Seat Belt Buckle Pretensioner Replacement .
  •    • 
  • Driver air bag. Refer to Inflatable Restraint Steering Wheel Module Replacement and Passenger Front Air Bag. Refer to Inflatable Restraint Instrument Panel Module Replacement .
  •    • 
  • Steering column. Refer to Steering Column Replacement .
  •    • 
  • Steering wheel. Refer to Steering Wheel Replacement .
  •    • 
  • Steering wheel module coil and electrical harness. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  •    • 
  • All occupied seat belts. Refer to Seat Belts.
  •    • 
  • All occupied seats. Refer to Seats.
  • Important: Inspect all mounting points and mounting hardware for damage after an accident:

       • 
  • Mounting points or mounting hardware for the I/P module, steering wheel module, SDM and pretensioner - inspect for any damage and repair or replace each component as needed.
  • Sensor Replacement Guidelines

       • 

    Important: The SIR front air bag sensor replacement policy requires replacing sensors in the area of accident damage. The area of accident damage is defined as the portion of the vehicle which is crushed, bent, or damaged due to a collision. An example of this would be a moderate collision where the front of the vehicle impacts a tree. The SIR front sensor must be replaced.

  • Replace the sensor, whether or not the air bags have deployed.
  •    • 
  • Replace the sensor even if it appears to be undamaged.
  • Important: Sensor damage which is not visible, such as slight bending of the mounting bracket or cuts in the wire insulation, can cause improper operation of the SIR/side air bag sensing system. DO NOT try to determine whether the sensor is undamaged. Replace the sensor. Also, if you follow a diagnostic trouble code (DTC) table and a malfunctioning sensor is indicated, replace the sensor.