GM Service Manual Online
For 1990-2009 cars only

Steering Column Tilt Head Housing Replacement Tilt

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 664269  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the turn signal cancel cam assembly. Refer to Turn Signal Cancel Cam and Upper Bearing Thrust Washer .
  3. Remove the turn signal and multifunction switch assembly only. Refer to Turn Signal Multifunction Switch Replacement .
  4. Slide the turn signal switch housing off of the steering column shaft assembly.
  5. Remove the tilt head housing and steering shaft as an assembly. Refer to Lower Bearing and Steering Column Jacket Replacement .
  6. Remove the tilt head from the steering shaft.

Installation Procedure


    Object Number: 664269  Size: SH
  1. Install the tilt head onto the steering shaft.
  2. Install the tilt head housing and steering shaft as an assembly. Refer to Lower Bearing and Steering Column Jacket Replacement .
  3. Important: The switch mounting bracket must be pressed firmly against the steering column tilt head.

  4. Slide the turn signal switch housing onto the steering column shaft assembly.
  5. Install the turn signal and multifunction switch assembly only. Refer to Turn Signal Multifunction Switch Replacement .
  6. Install the turn signal cancel cam assembly. Refer to Turn Signal Cancel Cam and Upper Bearing Thrust Washer .
  7. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.

Steering Column Tilt Head Housing Replacement Standard

Tools Required

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

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 664269  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the turn signal cancel cam and upper bearing thrust washer. Refer to Turn Signal Cancel Cam and Upper Bearing Thrust Washer .
  3. Remove the turn signal and multifunction switch assembly only. Refer to Turn Signal Multifunction Switch Replacement .
  4. Slide the turn signal switch housing off of the steering column shaft assembly.

  5. Object Number: 338052  Size: SH

    Important: Let the SIR coil hang freely after removal.

  6. Remove the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.
  7. Compress the cam orientation plate using J 23653-SIR and J 42137 .
  8. Remove the bearing retainer using J 23653-SIR and J 42137 from the steering column shaft assembly.
  9. Remove J 23653-SIR and J 42137 from the steering column shaft assembly.
  10. Discard the bearing retainer.

  11. Object Number: 664265  Size: SH
  12. Remove the following parts from the steering column shaft assembly:
  13. 10.1. The cam orientation plate (5)
    10.2. The turn signal cancel cam assembly (4)
    10.3. The upper bearing spring (3)
    10.4. The upper bearing inner race seat (2)
    10.5. The inner race (1)
    10.6. Remove the tilt head housing and steering shaft as an assembly. Refer to Lower Bearing and Steering Column Jacket Replacement .
    10.7. Remove the tilt head from the steering shaft.

Installation Procedure

  1. Install the tilt head onto the steering shaft.
  2. Install the tilt head housing and steering shaft as an assembly. Refer to Lower Bearing and Steering Column Jacket Replacement .

  3. Object Number: 664266  Size: SH
  4. Lubricate the lower brass surface of the turn signal cancel cam assembly with GM P/N 12377900 (Canadian P/N 10953529).
  5. Lubricate the inner race with GM P/N 12345718 (Canadian P/N 10953516)

  6. Install the following parts onto the steering column shaft assembly:
  7. 4.1. The inner race (1)
    4.2. The upper bearing inner race seat (2)
    4.3. The upper bearing spring (3)
    4.4. The turn signal cancel cam assembly (4)
    4.5. The cam orientation plate (5)

    Object Number: 338052  Size: SH
  8. Install the new bearing retainer onto the steering column shaft assembly.
  9. Compress the cam orientation plate using J 23653-SIR and J 42137 .
  10. Firmly seat the bearing retainer into the groove on the steering column shaft assembly.

  11. Remove J 23653-SIR from the steering column shaft assembly.
  12. Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.

  13. Object Number: 664269  Size: SH

    Important: The switch mounting bracket must be pressed firmly against the steering column tilt head.

  14. Slide the turn signal switch housing onto the steering column shaft assembly.
  15. Install the turn signal and multifunction switch assembly only. Refer to Turn Signal Multifunction Switch Replacement .
  16. Install the turn signal cancel cam and upper bearing thrust. Refer to Turn Signal Cancel Cam and Upper Bearing Thrust Washer .
  17. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.