GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 866425  Size: SH
  1. Loosen the upper trim panel:
  2. 1.1. Remove the screws located under the upper trim panel on the passenger's side of the vehicle.

            Notice: Be careful not to damage the VIN plate when removing or replacing the upper trim panel.

    1.2. Disengage the clips at the locations by grasping the edges of the upper trim panel and lifting up.

    Object Number: 866671  Size: SH
  3. Loosing the steering column filler panel screws.
  4. Notice: Do not remove weatherstrips. Adhesion will be lost if removed.


    Object Number: 866699  Size: SH
  5. Remove the left endcap assembly:
  6. 3.1. Remove the screws.
    3.2. Carefully disengage the clips at the instrument panel (I/P) retainer assembly locations. Use of a blunt tool will aid in disengaging the clips.
    3.3. Maneuver the assemblies past the inner I/P retainer assembly and the weatherstrips.

    Object Number: 866450  Size: SH
  7. Gently pry the edges of the ignition lock bezel with a blunt tool and separate it from the lower shroud.

  8. Object Number: 866520  Size: SH
  9. Remove the screws from the lower steering column shroud.
  10. Lower the steering column by pushing down on the steering column adjusting handle.
  11. Lift and remove the upper shroud from the steering column.

  12. Object Number: 866615  Size: SH
  13. Remove the I/P bezel:
  14. 8.1. Disengage the clips from the retainer assembly by grasping the edges of the bezel near the clip location and pull outward.
    8.2. Depress the wiring harness connector tabs and remove the harness from the dimmer/traction control switch assembly.

    Object Number: 863550  Size: SH
  15. Remove the radio:
  16. 9.1. Remove the radio screws.
    9.2. Pull the radio out slightly to access the rear of the radio.
    9.3. Disconnect the electrical connector, antenna, and ground strap connector.

    Object Number: 866646  Size: SH
  17. Remove the HVAC controller:
  18. Remove the screws.
  19. Disconnect the HVAC blower switch connector.
  20. Disconnect the HVAC control head connector.

  21. Object Number: 866568  Size: SH
  22. Remove the temperature cable by squeezing the lock tabs together while pulling the cable, coiled end, straight up beyond the retaining tabs.
  23. Remove the mode cable by squeezing the lock tabs together while pulling the cable, coiled end, straight up beyond the retaining tabs.

Installation Procedure

Important: Ensure the wiring harnesses do not interfere with the control lever movement.

Cable Identification:

    • Temperature Cable - White
    • Mode Cable - Black
  1. Install the HVAC controller:
  2. 1.1. Install the mode valve cable onto mode valve pin.
    1.2. Snap the slot on the cable into the HVAC controller base.

    Object Number: 866646  Size: SH
    1.3. Repeat the steps for the temperature cable.
    1.4. Install the blower switch connector.
    1.5. Install the HVAC controller connector.

    Notice: Refer to Fastener Notice in the Preface section.

    1.6. Install the screws.

    Tighten
    Tighten the HVAC controller-to-I/P retainer 2.5 N·m (22 lb in).


    Object Number: 863550  Size: SH
  3. Install the radio:
  4. 2.1. Connect the wiring harnesses.
    2.2. Connect the ground strap.
    2.3. Connect the antenna lead.
    2.4. Install the screws.

    Tighten
    Tighten the radio-to-I/P retainer 2.5 N·m (22 lb in).


    Object Number: 866615  Size: SH
  5. Install the I/P cluster bezel:
  6. 3.1. Connect the dimmer/traction control switch wiring harnesses.
    3.2. Position the I/P cluster bezel by lining up the clip location.
    3.3. Snap the I/P cluster bezel in place by pushing at the clip locations.

    Object Number: 866520  Size: SH
  7. Position the upper steering column shroud.
  8. Position the lower steering column shroud and the install screws.
  9. Tighten
    Tighten the steering column shroud fasteners 1.5 N·m (13 lb in).


    Object Number: 866450  Size: SH
  10. Install the ignition bezel.
  11. 6.1. Align the peg of the ignition bezel with the cut-out in the lower shroud.
    6.2. Snap it into place.

    Object Number: 866699  Size: SH

    Important: Ensure that the endcap bottom portion is inside of the filler panel assembly.

  12. Install the left endcap assembly:
  13. 7.1. Maneuver the assembly past the inner I/P retainer assembly and the weatherstrips.
    7.2. Snap the clips into the I/P retainer assembly locations.
    7.3. Install the screws.

    Tighten
    Tighten the I/P endcap retaining screws 2.5 N·m (22 lb in).


    Object Number: 866671  Size: SH
  14. Install the steering column filler panel screws.
  15. Tighten
    Tighten the steering column filler panel fasteners 2.5 N·m (22 lb in).


    Object Number: 866425  Size: SH

    Notice: Be careful not to damage the VIN plate when removing or replacing the upper trim panel.

    Important: Ensure that the upper trim panel seal is correctly seated on the forward edge before installing the upper trim panel.

  16. Install the I/P upper trim panel:
  17. 9.1. Ensure that the hook-and-loop fasteners on the upper trim panel are correctly inserted.
    9.2. Position the upper trim panel on the retainer assembly.
    9.3. Align the tabs on he sides of the upper trim panel with the openings in the windshield garnish molding.
    9.4. Align the clips and the clip location.
    9.5. Firmly snap in the clips at the clip locations.
    9.6. Install the screws on the underside of the upper trim panel on the passenger's side of the vehicle.

    Tighten
    Tighten the I/P upper trim panel fastener 6 N·m (53 lb in).