GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 477520  Size: SH
  1. Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement .
  2. Remove the following components from the instrument panel:
  3. 2.1. The screw (2)
    2.2. The air distribution center duct (1)

    Object Number: 477521  Size: SH
  4. Remove the following components from the instrument panel:
  5. 3.1. The 4 screws (1)
    3.2. The windshield defroster outlet duct (2)
    3.3. The heater duct

    Object Number: 477526  Size: SH
  6. Remove the screw (3) from the left side of the rear of the instrument panel (1) which secures the I/P wiring harness (2).

  7. Object Number: 477525  Size: SH
  8. Remove the 2 screws (1) from the center of the rear of the instrument panel (3) which secure the I/P wiring harness (2).

  9. Object Number: 477526  Size: SH
  10. Remove the screw (3) from the right side of the rear of the instrument panel (1) which secures the I/P wiring harness (2).

  11. Object Number: 477522  Size: SH
  12. Disconnect all necessary electrical connectors.
  13. Release the wiring harness retainers and remove the I/P wiring harness (2) from the I/P reinforcement (1).

Installation Procedure


    Object Number: 477522  Size: SH
  1. Install the I/P wiring harness (2) to the I/P reinforcement (1). Secure the harness with the plastic retainers.
  2. Connect all electrical connectors.

  3. Object Number: 477526  Size: SH
  4. Install the screw (3) to the left side of the rear of the instrument panel (1) which secures the I/P wiring harness (2).

  5. Object Number: 477525  Size: SH
  6. Install the 2 screws (1) to the center of the rear of the instrument panel (3) which secure the I/P wiring harness (2).

  7. Object Number: 477526  Size: SH
  8. Install the screw (3) to the right side of the rear of the instrument panel (1) which secures the I/P wiring harness (2).

  9. Object Number: 477521  Size: SH
  10. Install the heater duct to the instrument panel.
  11. Install the windshield defroster outlet duct (2) to the instrument panel. Secure the outlet duct with the 4 screws (1).

  12. Object Number: 477520  Size: SH
  13. Install the air distribution center duct (1) to the instrument panel. Secure the center duct with the screw (2).
  14. Install the instrument panel carrier. Refer to Instrument Panel Carrier Replacement .