GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 23653-SIR Steering Column Lock Plate Compressor
    • J 42137 Steering Column Lock Plate Adapter Compressor Adapter

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 330127  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Important: Do not remove the wire harness straps unless necessary.

  3. Remove the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  4. Remove and dispose of the bearing retainer (1) using J 23653-SIR and J 42137 .

  5. Object Number: 420186  Size: SH
  6. Remove the shaft lock shield assembly (1).
  7. Remove the turn signal cancel cam assembly (2).
  8. Remove the upper bearing spring (3).
  9. Remove the upper bearing inner race seat (4).
  10. Remove the inner race (5).

Installation Procedure


    Object Number: 420188  Size: SH
  1. Install the inner race (4).
  2. Install the upper bearing inner race seat (3).
  3. Install the upper bearing spring (2).
  4. Lubricate the turn signal cancel cam assembly (1) with GM P/N 12377900 (Canadian P/N 10953529).
  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 turn signal cancel cam assembly (1).

  7. Object Number: 420191  Size: SH
  8. Install the shaft lock shield assembly.

  9. Object Number: 330127  Size: SH
  10. Install the new bearing retainer (1) using J 23653-SIR and J 42137 .
  11. Caution: Improper routing of the wire harness assembly may damage the inflatable restraint steering wheel module coil. This may result in a malfunction of the coil, which may cause personal injury.

  12. Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.