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HVAC Control Module Replacement

WARNING: This page is about a different car, the 2010 Saturn Outlook, 2010 GMC Acadia, 2010 Chevrolet Traverse, and 2010 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying HVAC Control Module
GM1867118Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Remove the instrument panel (I/P) accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement (Acadia) or Instrument Panel Accessory Trim Plate Replacement (Enclave) or Instrument Panel Accessory Trim Plate Replacement (OUTLOOK) or Instrument Panel Accessory Trim Plate Replacement (Traverse) .
1 HVAC Control Module Screw (Qty: 4)
CAUTION: Refer to Fastener Caution .

Tighten:  2 N.m (18 lb in)

2 HVAC Control Module
Procedure: 
Reprogram the HVAC Control Module. Refer to Control Module References .