GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the radio. Refer to Radio Replacement .

  2. Object Number: 835770  Size: SH
  3. Remove the center knob from the HVAC control unit.
  4. Remove the screw from the control unit.
  5. Remove the center console and heater control trim panel (1).

  6. Object Number: 835774  Size: SH

    Important: Note the routing of the cable to make installation easier.

  7. Disconnect the mode control cable from the HVAC control unit.
  8. Disconnect the mode control cable from the HVAC module assembly .
  9. Remove the mode control cable from the vehicle.

Installation Procedure


    Object Number: 835774  Size: SH
  1. Position the mode control cable in the vehicle. Route the cable as previously noted.
  2. Connect the mode control cable to the HVAC module assembly .
  3. Connect the mode control cable to the HVAC control unit.

  4. Object Number: 835770  Size: SH
  5. Install the center console and heater control trim panel (1).
  6. Install the screw to the control unit.
  7. Install the center knob to the HVAC control unit.
  8. Install the radio. Refer to Radio Replacement .