How to replace the HVAC control module on Cadillac STS?

Pull the ashtray, and the radio is to replace the HVAC control module. Then, remove the HVAC control module retaining screws and disconnect electric connectors. Remove the HVAC control module and replace it with the new module then plug the electrical connectors. Make sure to comply with the fastener notice for proper fixation. Secure the H.V.A.C control module using the retaining screws to torque them to a 2 N.m (18 lb in). Lastly, re-install the radio and the ashtray. For programming and setup, refer to the control module references.

OEM Cadillac STS HVAC Control Module

Heater Control Assembly

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2 HVAC Control Modules found

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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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2011 Cadillac STS | Base, Platinum, V | 6 Cyl 3.6 L GAS, 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
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Cadillac STS Control Module
Part Number: 25740415
Product Specifications
- Other Name: Module, Blower Motor Control; Module, A/C Electric Temperature And Motor Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base, V | 6 Cyl 3.6 L GAS, 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS

Cadillac STS HVAC Control Module

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Cadillac STS HVAC Control Module Parts Questions & Experts Answers

Blower Motor Resistor
84178783
Q: How to replace the HVAC control module on Cadillac STS?
A: Pull the ashtray, and the radio is to replace the HVAC control module. Then, remove the HVAC control module retaining screws and disconnect electric connectors. Remove the HVAC control module and replace it with the new module then plug the electrical connectors. Make sure to comply with the fastener notice for proper fixation. Secure the H.V.A.C control module using the retaining screws to torque them to a 2 N.m (18 lb in). Lastly, re-install the radio and the ashtray. For programming and setup, refer to the control module references.