Auxiliary Heater and Air Conditioning Control Module Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Auxiliary Heater & Air Conditioning Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure: Remove the roof rear console. Refer to Roof Rear Console Replacement (w/o DVD) or Roof Rear Console Replacement (with DVD)
1	Heater and Air Conditioning Control Assembly Screw (Qty: 4) NOTE: Refer to Fastener Notice . Tighten: 1.5 N.m (13 lb in)
2	Heater and Air Conditioning Control Assembly Procedure: Disconnect the electrical connectors from the auxiliary HVAC control module. Tip: HVAC Control Module must be reprogrammed. Refer to Control Module References .