How to replace the HVAC control module on 2009 Cadillac STS?

Begin HVAC control module replacement by taking out the radio and ashtray. Begin by removing retaining screws from the HVAC control module while you disconnect electrical connectors. The new module should be set in position after removing the HVAC control module followed by electrical connector installation. Screw in the retaining screws and apply 2 Nm (18 lb in) of torque. You should install the radio and the ashtray at the end of the HVAC control module replacement procedure. Information regarding programming and setup can be found in the Control Module References.

OEM 2009 Cadillac STS HVAC Control Module

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2009 Cadillac STS Blower Motor Resistor
Part Number: 84178783
$87.39 MSRP: $179.59
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Product Specifications
- Other Name: Module Assembly-Blower Motor Control; Control Module; Resistor
- Replaces: 13503201, 13598134, 13598091, 15141283, 13598090, 13501703, 22811003
- Item Weight: 0.70 Pounds
- Item Dimensions: 7.2 x 7.1 x 6.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84178783
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2009 Cadillac STS Submodels:
- Base, Platinum, V | 6 Cyl 3.6 L GAS, 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS

2009 Cadillac STS HVAC Control Module

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2009 Cadillac STS Parts Questions & Experts Answers

Q: How to replace the HVAC control module on 2009 Cadillac STS?
A: Begin HVAC control module replacement by taking out the radio and ashtray. Begin by removing retaining screws from the HVAC control module while you disconnect electrical connectors. The new module should be set in position after removing the HVAC control module followed by electrical connector installation. Screw in the retaining screws and apply 2 Nm (18 lb in) of torque. You should install the radio and the ashtray at the end of the HVAC control module replacement procedure. Information regarding programming and setup can be found in the Control Module References.