TrailBlazer 2WD V8-6.0L (2009)
3. Install the HVAC control module retaining screws.
Tighten the screws to 1.9 Nm (17 lb ft).
4. Install the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement (GMC) (See: Body and Frame/Interior
Moulding / Trim/Dashboard / Instrument Panel/Service and Repair) or Instrument Panel Cluster Trim Plate Bezel Replacement (Chevrolet) (See:
Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair)Instrument Panel Cluster Trim Plate Bezel
Replacement (GMC) (See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair).
Note: Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.
If interrupted, improper HVAC performance will result.
5. Start the engine and let run for 1 minute.
Auxiliary Heater and Air Conditioning Control Module Replacement
Auxiliary Heater and Air Conditioning Control Module Replacement
Removal Procedure
1. Using a flat bladed tool, carefully pry out on the top of the HVAC control-auxiliary.
2. Remove the HVAC control-auxiliary from the center console/seat.
3. Disconnect the electrical connector.
4. Remove the rear HVAC control-auxiliary from the vehicle.
Installation Procedure