GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 664269  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 inflatable restraint steering wheel module. Refer to Disabling the SIR System in SIR.
  2. Remove the steering wheel from the column. Refer to Steering Wheel Replacement .
  3. Remove the ignition lock cylinder case assembly. Refer to Ignition Lock Cylinder Case Replacement .
  4. Remove the turn signal and multifunction switch assembly. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement .
  5. Slide the turn signal switch housing off of the steering column shaft assembly.

Installation Procedure


    Object Number: 664269  Size: SH

    Important: The turn signal switch housing must be pressed firmly against the steering column tilt head in order for the screws from the turn signal and multifunction switch assembly screws to line up.

  1. Slide the turn signal switch housing onto the steering column shaft assembly.
  2. Install the turn signal and multifunction switch assembly. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement .
  3. Install the ignition lock cylinder case. Refer to Ignition Lock Cylinder Case Replacement .
  4. Install the steering wheel onto the column. Refer to Steering Wheel Replacement .
  5. Enable the inflatable restraint steering wheel module. Refer to Enabling the SIR System in SIR.