GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Terraza 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Mode Valve Actuator Replacement

Removal Procedure

    Object Number: 1548556 Size: SH
  1. Remove the driver side knee bolster. Refer to Knee Bolster, Insulator, Molding Replacement - Instrument Panel in Instrument Panel, Gages, and Console.
  2. Locate the mode actuator (4).
  3. Disconnect the mode actuator electrical connector (3).

    4. Object Number: 1548536 Size: SH
  4. Remove the mode actuator bolts/screws (1).
  5. Remove the mode actuator (2).

Installation Procedure

    Object Number: 1548536 Size: SH
  1. Install the mode actuator (2).

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the mode actuator bolts/screws (1).

    3. Tighten
    Tighten the screws to 1.2 N·m (11 lb in).


    Object Number: 1548556 Size: SH
  3. Connect the mode actuator electrical connector (3).
  4. Install the driver side knee bolster. Refer to Knee Bolster, Insulator, Molding Replacement - Instrument Panel in Instrument Panel, Gages, and Console.
  5. Re-calibrate the actuators. Refer to Actuator Recalibration .