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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 295 (HVAC SYSTEM - MANUAL)REPAIR INSTRUCTIONSAUXILIARY HEATER AND AIR CONDITIONING CONTROL MODULE REPLACEMENT
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Auxiliary Heater and Air Conditioning Control Module Replacement
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION 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.
| 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 . |
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.