GM Service Manual Online
For 1990-2009 cars only

Steering Column Trim Cover Replacement Power Tilt

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  3. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  4. Remove the steering wheel. Refer to Steering Wheel Replacement .
  5. Remove the knee bolster. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  6. Remove the gap hider. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.

  7. Object Number: 588300  Size: SH
  8. Remove the retaining screws (4) from the lower steering column trim cover.
  9. Disconnect the closeout trim cover from the lower trim cover.
  10. Disconnect the electrical connector for the power tilt and telescopic switch.
  11. Remove the electrical connector for the telescopic switch from the lower trim cover.

  12. Object Number: 588304  Size: SH
  13. Remove the retaining screw (2) from the upper steering column trim cover (1).

  14. Object Number: 375310  Size: SH
  15. Lift the upper trim cover to gain access to the lock cylinder access hole.
  16. Using a bent tip awl, insert the tip into the access hole.

  17. Object Number: 375316  Size: SH
  18. Turn the ignition lock cylinder to the START position.
  19. Using the bent tip awl push down on the ignition lock cylinder retaining pin.
  20. Release the ignition lock cylinder to the RUN position and remove the lock cylinder.
  21. Remove the upper trim cover.
  22. Remove the closeout trim cover from the upper trim cover.

Installation Procedure


    Object Number: 588304  Size: SH
  1. Install the upper steering column trim cover (1) to the closeout trim cover.
  2. Install the upper trim cover (1) to the steering column.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the retaining screw to the upper trim cover.
  5. Tighten
    Tighten the screw to 1.5 N·m (13 lb in).

  6. Install the Ignition lock cylinder.

  7. Object Number: 588300  Size: SH
  8. Install the lower steering column trim cover (2) and ensure that the tabs on the lower trim cover engage with the tabs on the upper trim cover (1). Snap the covers together.
  9. Connect the lower trim cover to the closeout trim cover.
  10. Install the retaining screws to the lower trim cover.
  11. Tighten
    Tighten the screws to 3 N·m (27 lb in).

  12. Install the gap hider. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.
  13. Install the knee bolster. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  14. Install the steering wheel. Refer to Steering Wheel Replacement .
  15. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  16. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.

Steering Column Trim Cover Replacement Manual Tilt

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  3. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  4. Remove the steering wheel. Refer to Steering Wheel Replacement .
  5. Remove the knee bolster. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  6. Remove the gap hider. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.

  7. Object Number: 603840  Size: SH
  8. Put the steering column in the CENTER position.
  9. Remove the tilt lever (1).

  10. Object Number: 603837  Size: SH
  11. Remove the retaining screws (3) from the lower steering column trim cover.
  12. Disconnect the closeout trim cover from the lower steering column trim cover.

  13. Object Number: 603845  Size: SH
  14. Remove the retaining screw (2) from the upper steering column trim cover (1).

  15. Object Number: 375310  Size: SH
  16. Lift the upper trim cover to gain access to the lock cylinder access hole.
  17. Using a bent tip awl, insert the tip into the access hole in the ignition lock cylinder.

  18. Object Number: 375316  Size: SH
  19. Turn the ignition lock cylinder to the START position.
  20. Using the bent tip awl push down on the retaining pin of the ignition lock cylinder.
  21. Release the ignition lock cylinder to the RUN position and remove the lock cylinder.
  22. Remove the upper trim cover.
  23. Remove the closeout trim cover from the upper trim cover.

Installation Procedure


    Object Number: 603845  Size: SH
  1. Install the upper steering column trim cover (1) to the closeout trim cover.
  2. Install the upper trim cover (1) to the steering column.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the retaining screw (2) to the upper steering column trim cover.
  5. Tighten
    Tighten the screw to 1.5 N·m (13 lb in).

  6. Install the Ignition lock cylinder.

  7. Object Number: 603837  Size: SH
  8. Install the lower trim cover (2) and ensure that the tabs engage with the tabs on the upper trim cover (1). Snap the tabs together.
  9. Connect the lower steering column trim cover to the closeout trim cover.
  10. Install the retaining screws (3) to the lower steering column trim cover.
  11. Tighten
    Tighten the screws to 3 N·m (27 lb in).


    Object Number: 603840  Size: SH
  12. Install the tilt lever (1).
  13. Install the gap hider. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.
  14. Install the knee bolster. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  15. Install the steering wheel. Refer to Steering Wheel Replacement .
  16. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  17. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.