TrailBlazer 2WD V8-6.0L (2009)
Control Module HVAC: Service and Repair
HVAC - Automatic
HVAC Control Module Replacement
HVAC Control Module Replacement
Removal Procedure
1. Remove 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).
2. Remove the HVAC control module screws.
3. Depress the HVAC control module tabs (3) and remove the HVAC control module (2) from the I/P (4).
4. Disconnect the electrical connectors (1) from the HVAC control module (2).
Installation Procedure
1. Connect the electrical connectors (1) to the HVAC control module (2).
Important: Ensure that the HVAC control module tabs (3) lock into place.
2. Install the HVAC control module (2) into the I/P (4).
Notice: Refer to Fastener Notice .
3. Install the HVAC control module screws.
Tighten the screws to 1.9 Nm (17 lb in).
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).
Auxiliary Heater and Air Conditioning Control Module Replacement