HVAC Control Module Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement (Except Cadillac) , Instrument Panel Accessory Trim Plate Replacement (Cadillac) . Remove the accessory switch assembly. Refer to Accessory Switch Replacement (Cadillac) , Accessory Switch Replacement (Except Cadillac) . Disconnect the electrical connectors.
1	Control Assembly - Heater and Air Conditioning Screw (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 1.5 N.m (13 lb in)
2	Heater and Air Conditioning Control Assembly TIP: The HVAC control module must be reprogrammed. Refer to Control Module References .

Callout

Component Name

Preliminary Procedure

Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement (Except Cadillac) , Instrument Panel Accessory Trim Plate Replacement (Cadillac) .
Remove the accessory switch assembly. Refer to Accessory Switch Replacement (Cadillac) , Accessory Switch Replacement (Except Cadillac) .
Disconnect the electrical connectors.

Control Assembly - Heater and Air Conditioning Screw (Qty: 4)

CAUTION:

Refer to Fastener Caution .

Tighten
1.5 N.m (13 lb in)

Heater and Air Conditioning Control Assembly
TIP: The HVAC control module must be reprogrammed. Refer to Control Module References .