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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHVAC SYSTEMS - MANUALREPAIR INSTRUCTIONSHVAC CONTROL PROCESSOR REPLACEMENT - AUXILIARYINSTALLATION PROCEDURE

2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure

Fig 1: View Of Auxiliary HVAC Control Processor & Box

Courtesy of GENERAL MOTORS CORP.

Install the auxiliary HVAC control processor (2) to the box. (1)
Install the cover to the auxiliary HVAC control processor (2).

Fig 2: View Of Auxiliary HVAC Control Processor & Bracket

Courtesy of GENERAL MOTORS CORP.

Install the auxiliary HVAC control processor (2) to the bracket (3).
Install the auxiliary rear HVAC control assembly. Refer to HVAC Control Assembly Replacement - Rear Auxiliary .

RENDER: 1.0x

NO RELATED

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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.