GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 420221  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 following from the steering shaft:
  3. • boot (5)
    • steering shaft seal (4)
    • sensor retainer (3)
    • sensor locator (2)
  4. Remove the steering wheel position sensor. Refer to Steering Wheel Position Sensor Centering .

Installation Procedure


    Object Number: 420221  Size: SH
  1. Install the following onto the steering shaft:
  2. 1.1. steering wheel position sensor (1). Refer to Steering Wheel Position Sensor Centering .
    1.2. sensor locator (2)
    1.3. sensor retainer (3)
    1.4. steering shaft seal (4)
    1.5. boot (5)
  3. Enable the SIR system. Refer to Enabling the SIR System in SIR.