GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 877771  Size: SH
  1. Pull out on the accessory trim plate in order to release the retaining fasteners.

  2. Object Number: 877774  Size: SH
  3. Disconnect the accessory trim plate electrical connector(s).

  4. Object Number: 873751  Size: SH
  5. Remove the screws from the radio and pull the radio out.

  6. Object Number: 873752  Size: SH
  7. Disconnect the radio electrical connectors and remove the radio.

  8. Object Number: 873745  Size: SH

    Important: Do not bend the mode and temperature cables.

  9. Disconnect the mode and temperature cables from the HVAC control assembly.

  10. Object Number: 873744  Size: SH
  11. Disconnect the HVAC control assembly electrical connectors.

  12. Object Number: 873747  Size: SH
  13. Remove the HVAC control assembly screws and remove the HVAC control assembly.

  14. Object Number: 873749  Size: SH

    Important: Do not bend the mode cable.

  15. Remove the mode cable screw and remove the mode cable.

Installation Procedure


    Object Number: 873749  Size: SH

    Important: Do not bend the mode cable.

  1. Install the mode cable. Make certain that the cable is properly seated in the notch in the HVAC module.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the mode cable screw.
  4. Tighten
    Tighten the screw to 2 N·m (18 lb in).


    Object Number: 873747  Size: SH
  5. Install the HVAC control assembly.
  6. Install the HVAC control assembly screws.
  7. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).


    Object Number: 873745  Size: SH

    Important: Do not bend the mode and temperature cables.

  8. Connect the mode and temperature cables to the HVAC control assembly.

  9. Object Number: 873744  Size: SH
  10. Connect the HVAC control assembly electrical connectors.

  11. Object Number: 873752  Size: SH
  12. Place the radio in the vehicle and connect the radio electrical connectors.

  13. Object Number: 873751  Size: SH
  14. Push the radio into position.
  15. Install the radio screws.
  16. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).


    Object Number: 877774  Size: SH
  17. Connect the accessory trim plate electrical connector(s).

  18. Object Number: 877771  Size: SH
  19. Align the retaining fasteners with the instrument panel (I/P).
  20. Push on the outer edge of the accessory trim plate in order to secure the retaining fasteners.