How to service the A/C Switch in the HVAC Control Assembly on 2003 Buick Regal?

To service the HVAC control assembly, remove the front floor console and retaining screws and pull the assembly from the instrument panel. Remove the electrical connectors and vacuum harness. For installation, reconnect them, make sure that the key is off for calibration, then reinstall the assembly and front console, starting the engine after.

OEM 2003 Buick Regal A/C Switch

Air Conditioning Switch

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2 A/C Switches found

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2003 Buick Regal Heater Control Part Number: 19329969
Product Specifications
- Other Name: Control, Heater & A/C; Climate Control Module; Blower Control Switch; Dash Control Unit
- Replaces: 10435588, 9360494, 09360494
- Item Weight: 1.30 Pounds
- Item Dimensions: 13.5 x 4.4 x 4.2 inches
- Condition: New
- SKU: 19329969
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- GS, GSE, LS, LSE | 3.8L V6, 6 Cyl 3.8 L GAS
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2003 Buick Regal Heater Control Part Number: 10308120
Product Specifications
- Other Name: Control Assembly-Heater & A/C; Climate Control Module; Blower Control Switch; Dash Control Unit; Control, Heater And A/C Control
- Replaces: 09384734, 10447470, 9384734
- Item Weight: 1.20 Pounds
- Item Dimensions: 11.4 x 5.0 x 5.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 10308120
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- GS, GSE, LS, LSE | 6 Cyl 3.8 L GAS

2003 Buick Regal A/C Switch

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2003 Buick Regal A/C Switch Parts and Q&A

Q: How to service the A/C Switch in the HVAC Control Assembly on 2003 Buick Regal?
A: To service the HVAC control assembly, remove the front floor console and retaining screws and pull the assembly from the instrument panel. Remove the electrical connectors and vacuum harness. For installation, reconnect them, make sure that the key is off for calibration, then reinstall the assembly and front console, starting the engine after.