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 MANUALSCHEVROLET2003AVALANCHE 1500 2WD V8-5.3L VIN TREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYTECHNICAL SERVICE BULLETINSA/C - CONTROL KNOB REPLACEMENT AVAILABILITY
2003 Chevrolet Avalanche 1500 2WD V8-5.3L VIN T
A/C - Control Knob Replacement Availability
2003 Chevrolet Avalanche 1500 2WD V8-5.3L VIN TSECTION A/C - Control Knob Replacement Availability
Bulletin No.: 04-01-37-001
Date: January 06, 2004
INFORMATION
Subject:
HVAC Control Knob Replacement
Models:
2000-2004 All Passenger Cars and Light Duty Trucks
2003-04 HUMMER H2
HVAC Control Knob Availability
Important:
If a knob becomes loose or broken, you MUST first check for availability of the control knob before attempting to replace the entire HVAC controller.
The various knobs used on the HVAC controls of most GM vehicles are available for purchase separately from the HVAC head units. If a knob becomes loose or broken, you MUST first check for availability of the control knob before attempting to replace the entire HVAC controller. Please use only the labor operation code listed below when replacing an HVAC control knob.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Date: January 06, 2004
INFORMATION
Subject:
HVAC Control Knob Replacement
Models:
2000-2004 All Passenger Cars and Light Duty Trucks
2003-04 HUMMER H2
HVAC Control Knob Availability
Important:
If a knob becomes loose or broken, you MUST first check for availability of the control knob before attempting to replace the entire HVAC controller.
The various knobs used on the HVAC controls of most GM vehicles are available for purchase separately from the HVAC head units. If a knob becomes loose or broken, you MUST first check for availability of the control knob before attempting to replace the entire HVAC controller. Please use only the labor operation code listed below when replacing an HVAC control knob.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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.