GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 417479  Size: SH

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

  1. Disable the SIR System. Refer to Disabling the SIR System in SIR.
  2. Important: It is not necessary to remove the steering wheel to access the lower trim cover screws. The screws can be easily accessed by rotating the steering wheel.

  3. Remove the following components from the steering column:
  4. • The lower trim cover screw
    • The 2 lower trim cover screws (2) that are located beneath the steering wheel (1).

    Object Number: 363398  Size: SH
  5. Remove the steering column lower trim cover (6).

  6. Object Number: 328445  Size: SH
  7. Remove the following components from the steering column:
  8. • The steering column upper trim cover screw (3)
    • The steering column upper trim cover (2)

    Object Number: 417480  Size: SH
  9. Inspect the base (1) for damage. If damage to the base is observed, replace the turn signal, headlamp and windshield washer switch as an assembly. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  10. Disconnect the turn signal/headlamp switch electrical connector (3).
  11. Remove the following components from the steering column:
  12. • The 2 screws (4)
    • The turn signal/headlamp switch (2)

Installation Procedure


    Object Number: 417480  Size: SH
  1. Install the turn signal/headlamp switch (2) to the steering column. Secure the switch with the 2 screws (4).
  2. Connect the turn signal/headlamp switch electrical connector (3).

  3. Object Number: 328445  Size: SH
  4. Install the steering column upper trim cover (2) to the vehicle. Secure the trim cover with the screw (3).

  5. Object Number: 363398  Size: SH
  6. Install the steering column lower trim cover (6) to the vehicle. Secure the trim cover with the 3 screws.
  7. Enable the SIR System. Refer to Enabling the SIR System in SIR.