GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Recirculation Door Replacement

Removal Procedure
  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
  2. Remove the screws retaining the recirculation assembly to the HVAC module assembly.
  3. Remove the screws from the recirculation actuator.
  4. Remove recirculation actuator.

    5. Object Number: 735975 Size: SH
  5. Remove the recirculation door (1) from the recirculation assembly.

Installation Procedure

    Object Number: 735975 Size: SH
  1. Install the recirculation door (1) to the recirculation assembly.
  2. Install the recirculation actuator.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the screws to the recirculation actuator and tighten to 1.9 N·m (18 lb in).
  4. Install the screws to assemble the recirculation assembly and tighten to 1.9 N·m (18 lb in).
  5. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.