Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1427 (HVAC SYSTEMS - MANUAL)REPAIR INSTRUCTIONSHVAC CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE

2004 Oldsmobile Bravada AWD

Installation Procedure

2004 Oldsmobile Bravada AWDSECTION Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The Key should be in the off position when connecting the electrical connectors to ensure proper calibration.

Connect the electrical connectors to the HVAC control module (2).

Fig 1: Connecting Electrical Connectors To HVAC Control Module
Courtesy of GENERAL MOTORS CORP.
Install the HVAC control module (2) to the instrument panel (4), ensuring that the HVAC control module retaining tabs (3) lock into place.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the HVAC control module retaining screws.
Tighten

Tighten the screws to 1.9 N.m (17 lb ft).
Install the IP accessory trim plate. Refer to TRIM PLATE REPLACEMENT - INSTRUMENT PANEL (I/P) ACCESSORY (CHEVROLET) or TRIM PLATE REPLACEMENT - INSTRUMENT PANEL (I/P) ACCESSORY (OLDSMOBILE) or BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER (CHEVROLET) or BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER (GMC/OLDSMOBILE) in Instrument Panel, Gages and Console.
IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.

If interrupted improper HVAC performance will result.
Start the vehicle and let run for one minute.

Fig 2: Installing HVAC Control Module To Instrument Panel
Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.