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 Compressor Adapter

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 293252  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Important: Let the SIR coil hang freely after removal.

  3. Remove the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  4. Remove the wave washer (1) from the steering column shaft (2).

  5. Object Number: 338052  Size: SH
  6. Remove and discard the bearing retainer using J 23653-SIR and J 42137 .

  7. Object Number: 664265  Size: SH
  8. Remove the following parts from the steering column shaft:
  9. 5.1. The cam orientation plate (5)
    5.2. The turn signal cancel cam assembly (4)
    5.3. The upper bearing spring (3)
    5.4. The upper bearing inner race seat (2)
    5.5. The inner race (1)

Installation Procedure


    Object Number: 664266  Size: SH
  1. Install the following parts onto the steering column shaft:
  2. • Lubricate the inner race (1) with GM P/N 12377900 (Canadian P/N 10953529)
    • Install the inner race (1)
    • The upper bearing inner race seat (2)
    • The upper bearing spring (3)
    • Lubricate the turn signal cancel cam assembly (3) with GM P/N 12377900 (Canadian P/N 10953529)
    • Install the turn signal cancel cam assembly (4) onto the steering shaft assembly
    • The cam orientation plate (5)

    Object Number: 338052  Size: SH
  3. Install the new bearing retainer onto the steering shaft assembly.
  4. Compress the cam orientation plate using J 23653-SIR and J 42137 .
  5. Firmly seat the bearing retainer into the groove on the steering shaft assembly.
  6. Remove J 23653-SIR and J 42137 .

  7. Object Number: 293252  Size: SH
  8. Install the wave washer (1) onto the steering column shaft (2).
  9. Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  10. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.