GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1255872  Size: SH

    Important: The heater/air distribution case linkage is non-adjustable. Use care when removing.

  1. Disconnect the negative battery cable.
  2. Remove the storage compartment. Refer to Instrument Panel Storage Compartment Replacement.
  3. Disconnect the cable retainer from the blower housing.
  4. Slide the cable eyelet off the post on the temperature door lever.

  5. Object Number: 1255873  Size: SH
  6. Remove the audio system trim plate. Refer to Radio Replacement.
  7. Remove the 4 controller retaining screws.
  8. Pull out the controller to provide clearance for removal of the temperature control cable.
  9. Disconnect the temperature control cable eyelet from the post on the controller.
  10. Snap the cable housing connector out of the slide position on the controller.

Installation Procedure


    Object Number: 1255873  Size: SH
  1. Install the temperature control cable eyelet to the post on the controller.
  2. Snap the cable housing connector to the slide position on the controller.

  3. Object Number: 1255872  Size: SH
  4. Gently insert the controller into position on the center console.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the 4 controller retaining screws.
  7. Tighten
    Tighten the controller retaining screws to 4 N·m (35 lb in).

  8. Install the temperature control cable eyelet to the post on the temperature door lever.
  9. Snap the cable retainer to the blower housing.

  10. Object Number: 1255874  Size: SH
  11. Move the temperature control to verify the smooth operation and function of the door and the cable.
  12. Install the audio system trim plate. Refer to Radio Replacement.
  13. Connect the negative battery cable.
  14. Operate the heating and cooling systems to verify proper function.
  15. Install the instrument panel storage compartment. Refer to Instrument Panel Storage Compartment Replacement.