How to replace the HVAC control module on 2008 Buick LaCrosse?

To replace the HVAC control module, you have to remove the instrument panel lower trim plate and mounting screws. Grab the module and pull it backwards and unplug the electrical connectors. Disconnect connectors, then turn key OFF and install module and reinstall trim plate. Do not make control adjustments during calibration. Turn the engine to finish the setup.

OEM 2008 Buick LaCrosse HVAC Control Module

Heater Control Assembly

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2008 Buick LaCrosse Control Module Part Number: 22754990
$63.58 MSRP: $130.66
You Save: $67.08 (52%)
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Product Specifications
- Other Name: Module Assembly-Blower Motor Control; Blower Motor Resistor; Resistor; Module, A/C Electric Temperature And Motor Control
- Replaces: 15850268, 10325408, 89018653, 15827470
- Item Weight: 0.90 Pounds
- Item Dimensions: 5.3 x 5.4 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 22754990
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2008 Buick LaCrosse Submodels:
- CX, CXL, CXS, Super | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS

2008 Buick LaCrosse HVAC Control Module

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2008 Buick LaCrosse HVAC Control Module Parts and Q&A

Q: How to replace the HVAC control module on 2008 Buick LaCrosse?
A: To replace the HVAC control module, you have to remove the instrument panel lower trim plate and mounting screws. Grab the module and pull it backwards and unplug the electrical connectors. Disconnect connectors, then turn key OFF and install module and reinstall trim plate. Do not make control adjustments during calibration. Turn the engine to finish the setup.