GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 23653-SIR Lock Plate Compressor
    • J 42137 Cam Orientation Plate Adapter

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 371185  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 3 .
  2. Remove the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement.
  3. Remove and discard the bearing retainer using J 23653-SIR and J 42137 .

  4. Object Number: 761443  Size: SH
  5. Remove the shaft lock (2) or the cam orientation plate (1).
  6. Important: Do not wipe the lubricant off the turn signal cancel cam assembly.

  7. Remove the turn signal cancel cam assembly (3).
  8. Remove the upper bearing spring (4).
  9. Remove the upper bearing inner race seat (5).
  10. Remove the inner race (6).

Installation Procedure


    Object Number: 761443  Size: SH
  1. Install the inner race (6).
  2. Install the upper bearing inner race seat (5).
  3. Install the upper bearing spring (4).
  4. Install the turn signal cancel cam (3).
  5. Important: The electrical contact of the turn signal and multifunction switch assembly must rest on the turn signal cancel cam assembly.

  6. Install the shaft lock (2) or the cam orientation plate (1).

  7. Object Number: 371185  Size: SH
  8. Install the new bearing retainer using J 23653-SIR and J 42137 .
  9. Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement.
  10. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 .