GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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


    Object Number: 1280159  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the driver knee bolster or lower cover.
  3. Disconnet the connecting rod from the mode control door actuator.
  4. Disconnect the connector to the mode control door actuator.
  5. Remove the 3 screws that secure the mode control door actuator to the heater/air distributor case.
  6. Remove the mode control door actuator by gently tapping the actuator.

Installation Procedure


    Object Number: 1280159  Size: SH
  1. Install the mode control door actuator.
  2. Install the 3 screws that secure the mode control door actuator to the heater/air distributor case.
  3. Connect the connector to the mode control door actuator.
  4. Install the connecting rod of the mode control door actuator.
  5. Install the driver's knee bolster or lower cover.
  6. Connect the negative battery cable.