GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 678058  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
  2. Remove the steering column from the vehicle. Refer to Steering Column Replacement .
  3. Remove the following from the steering shaft:
  4. 3.1. Steering shaft seal (4)
    3.2. Sensor retainer (3)
    3.3. Steering wheel position sensor (2), refer to Steering Wheel Position Sensor Centering .
    3.4. Adapter and bearing assembly (1)

Installation Procedure


    Object Number: 678058  Size: SH
  1. Install the following to the steering shaft:
  2. 1.1. adapter and bearing assembly (1)

            Important: The steering shaft assembly must be rotated to the 12 o'clock position.

    1.2. Sensor assembly (2), refer to Steering Wheel Position Sensor Centering .
    1.3. Sensor retainer (3)
    1.4. Steering shaft seal (4)
  3. Install the steering column to the vehicle. Refer to Steering Column Replacement .
  4. Enable the inflatable restraint steering wheel module. Refer to Enabling the SIR System in SIR.