GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Terrain 🢒 HVAC 🢒 HVAC - Automatic 🢒 Mode Valve Actuator Replacement

Removal Procedure

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


    Object Number: 1785853 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Disconnect the electrical connector.
  3. Remove the motor actuating rod by snapping out it out of the lever with needle-nose pliers.
  4. Remove the motor lever.
  5. Remove the motor retaining bolts.
  6. Remove the mode door motor.

Installation Procedure

    Object Number: 1785853 Size: SH
  1. Install the mode door motor.
  2. Install the motor retaining screws and tighten.
  3. Install the motor lever by pressing it onto its shaft.
  4. Install the actuating rod.
  5. Connect the electrical connector.
  6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .