GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2005 🢒 Ascender - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Steering Column Trim Cover Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 516159 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Remove the steering wheel. Refer to Steering Wheel Replacement .
  3. Remove the tilt lever. Refer to Tilt Lever Replacement .
  4. Remove the knee bolster. Refer to Knee Bolster Replacement.

    5. Notice: Remove the closeout trim cover following the exact procedure listed below in order not to damage the snaps on the upper trim cover.

  5. Disengage the closeout trim cover (2) from the upper trim cover (1) in the following order:
    6. 5.1. Stand in front of the column from the drivers point of view.
    5.2. On the left side, gently pull downwards on the left side of the closeout trim cover to loosen 1 snap. Do NOT fully remove the closeout trim cover.
    5.3. On the right side, gently pull downwards on the right side of the closeout trim cover to loosen 1 snap. Do NOT fully remove the closeout trim cover.
    5.4. Starting from the left side of the trim covers, gently roll the closeout trim cover to the right to disengage the remaining 4 snaps.

    Object Number: 419645 Size: SH

    Important: You must inspect for 2 pan head tapping screws (2) in the lower trim cover (1) before removal.

  6. If necessary, remove the 2 pan head tapping screws (2) from the lower trim cover (1).

    7. Object Number: 723623 Size: SH
  7. Gently unsnap the lower trim cover from the upper trim cover.
  8. If equipped, disconnect the electrical connector from the power switch.
  9. Remove the lower trim cover.
  10. Unclip the power pedal switch from the lower cover.

    11. Object Number: 419647 Size: SH

    Important: You must inspect for 1 TORX® head screw (3) in the upper trim cover (1) before removal.

  11. If necessary, remove 1 TORX® head screw (3) from the upper trim cover (1) and the closeout trim cover (2) for removal.
  12. If no screw is present, remove the upper trim cover (1) with the closeout trim cover (2).

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 419647 Size: SH

    Important: If the snap on/off feature on the trim covers was damaged during the removal procedure, you must use screws for the installation procedure. If screws were present in the trim covers before the removal procedure, you must use the screws during the installation procedure.

    If there was not any damage done to the trim covers during the removal procedure and no screws were present, proceed to step 7.

  1. Install the upper trim cover (1) with the closeout trim cover (2) and secure by using 1 TORX® head screw (3).

    2. Tighten
    Tighten the screw to 1 N·m (9 lb in).


    Object Number: 419645 Size: SH
  2. If equipped, install the power pedal switch onto the lower trim cover.
  3. Plug in the electrical connector for the power pedal switch.
  4. Install the lower trim cover (1).
  5. Connect the lower trim cover (1) to the closeout trim cover.
  6. Install 2 pan head tapping screws (2).

    7. Tighten
    Tighten the screws to 3.5 N·m (31 lb in).


    Object Number: 723623 Size: SH
  7. Install the upper and lower trim covers onto the steering column.
  8. Gently snap the upper and lower trim covers together.

    9. Object Number: 516159 Size: SH
  9. Install the closeout trim cover (2) onto the upper trim cover (1).
  10. Install the knee bolster. Refer to Knee Bolster Replacement.
  11. Install the tilt lever. Refer to Tilt Lever Replacement .
  12. Install the steering wheel. Refer to Steering Wheel Replacement .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling.