How to remove and install the front and rear A/C switch on Chevrolet Trailblazer?

To remove and install the front A/C switch, start by disconnecting the cable from the negative terminal of the battery. Then, remove the console and the accessory trim plate. Next, remove the control assembly retaining screws and depress the tabs to pull the unit from the dash. Use a small screwdriver to release the clips and disconnect the electrical connections and control cables if necessary.

Genuine Chevrolet Trailblazer A/C Switch

Air Conditioning Switch

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33 A/C Switches found

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Chevrolet Trailblazer Heater & Air Conditioner Control Assembly (W/ Amplitude Modulation / Frequency Modulation Stere)
Part Number: 15250212
$94.73 MSRP: $151.56
You Save: $56.83 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Control Assembly, Heater & A/C (W/ Amplitude Modulation / Frequency Modulation Stere); Blower Motor Switch, Dash Control Unit
- Replaces: 15166894
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2008 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Heater & Air Conditioner Control Assembly
Part Number: 15845094
$273.07 MSRP: $511.26
You Save: $238.19 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control,Heater & A/C
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Control Assembly, Htr & A/C Rem
Part Number: 84692729
$44.16 MSRP: $83.33
You Save: $39.17 (48%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Module, Controller
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer CONTROL ASM-HTR & A/C REM
Part Number: 85137500
$68.78 MSRP: $129.78
You Save: $61.00 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Module, Controller
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022-2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer CONTROL ASM-HTR & A/C USER INTERFACE *JET BLACK
Part Number: 42775573
$87.91 MSRP: $165.86
You Save: $77.95 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 42855081
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022-2023 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Heater And Air Conditioner Control Blower Switch Knob
Part Number: 88986180
$2.97 MSRP: $9.84
You Save: $6.87 (70%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Knob,Heater & A/C Control Blower Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Control Assembly, Htr & A/C User Interface *Jet Black
Part Number: 42755151
$58.73 MSRP: $174.62
You Save: $115.89 (67%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Dash Control Unit, Heater Control
- Replaced by: 42854936
- Replaces: 42732421
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer CONTROL ASM-HTR & A/C USER INTERFACE *JET BLACK
Part Number: 42854938
$95.72 MSRP: $180.60
You Save: $84.88 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Dash Control Unit, Heater Control
- Replaces: 42775574, 42729743
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer CONTROL ASM-HTR & A/C USER INTERFACE *JET BLACK
Part Number: 42854936
$58.73 MSRP: $174.62
You Save: $115.89 (67%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Control
- Replaces: 42775571
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Control Assembly, Htr & A/C Rem
Part Number: 84692582
$75.15 MSRP: $134.80
You Save: $59.65 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Controller
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer CONTROL ASM-HTR & A/C USER INTERFACE *JET BLACK
Part Number: 42854935
$83.06 MSRP: $156.72
You Save: $73.66 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Control Assembly, Htr & A/C User Interface *Black
Part Number: 42775570
$118.21 MSRP: $223.04
You Save: $104.83 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 42732420
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Control Assembly, Heater & A/C
Part Number: 25945046
$151.34 MSRP: $268.90
You Save: $117.56 (44%)
Product Specifications
- Other Name: CONTROL, A/C Instrument Panel; Dash Control Unit, Heater Control
- Replaces: 15195333, 10395426, 15220318, 15165920, 15203181, 15132072
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Control Assembly, Heater & A/C
Part Number: 15814152
$216.90 MSRP: $387.02
You Save: $170.12 (44%)
Product Specifications
- Other Name: CONTROL, A/C Instrument Panel; Dash Control Unit, Heater Control
- Replaces: 15203179, 15220319
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Heater & Air Conditioning Control Selector Switch *Marked Print
Part Number: 15081585
$41.62 MSRP: $62.23
You Save: $20.61 (34%)
Product Specifications
- Other Name: Switch Assembly, Heater & A/C Control Selector *Marked Print ; Switch, A/C Electric Temperature And Motor Control
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Heater And Air Conditioner Control Blower Switch Knob
Part Number: 12227670
Product Specifications
- Other Name: Knob,Heater & A/C Control Blower Switch
- Replaces: 09369570, 9369570
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
View related parts
Chevrolet Trailblazer Heater & Air Conditioner Control Assembly (W/ Amplitude Modulation / Frequency Modulation Stereo Radio)
Part Number: 15159249
Product Specifications
- Other Name: Control,Heater & A/C(W/Amplitude Modulation/Frequency Modulation Stereo Radio)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L, 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer Heater & Air Conditioner Control Assembly
Part Number: 21999163
$327.79 MSRP: $586.82
You Save: $259.03 (45%)
Product Specifications
- Other Name: Control Assembly, Heater & A/C ; Control, A/C Instrument Panel; Dash Control Unit, Heater Control
- Replaces: 15079112, 15195380, 15077479, 15085358
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer Auxiliary Heater & Air Conditioner Blower Control Switch Assembly
Part Number: 1999499
Product Specifications
- Other Name: Switch Asm,Auxiliary Heater & A/C Blower Control ; Switch, A/C Electric Temperature And Motor Control; AC Switch, Blower Motor Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
View related parts
Chevrolet Trailblazer Dash Control Unit
Part Number: 25945047
$169.14 MSRP: $300.98
You Save: $131.84 (44%)
Product Specifications
- Other Name: Control Assembly, Heater & A/C ; Control, A/C Instrument Panel; Heater Control
- Replaces: 15132073, 15195334, 15220317, 10395427, 15165921
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L

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Chevrolet Trailblazer A/C Switch

The A/C Switch in Chevrolet Trailblazer cars is an important part for climate control in the cars, helping the drivers to maintain the interior temperature. This system is controlled by a climate control module in the dashboard that punches orders to different sections of the A/C Switch to ignite heating or cooling. The A/C Switch interacts with relays and power modules to enable the enabling and disabling of climate control parts as required. Over the years, there have been various styles of Chevrolet Trailblazer A/C Switch use in the Chevrolet Trailblazer models, which have pairs of buttons, dials or knobs to be handled by user to regulate the temperatures respectively. The primary difference that separates those types from each other is the functionality and design, and the new units created have greater control precision and a broader scope of blowers' settings in comparison with older versions. This evolution increases efficiency enabling the system to automate itself with regard to temperature reading to provide optimal comfort without loss of energy.

Each OEM Chevrolet Trailblazer A/C Switch we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer A/C Switch Parts Questions & Experts Answers

Control Assembly, Heater & A/C
25945046
Q: How to remove and install the front and rear A/C switch on Chevrolet Trailblazer?
A:
To remove and install the front A/C switch, start by disconnecting the cable from the negative terminal of the battery. Then, remove the console and the accessory trim plate. Next, remove the control assembly retaining screws and depress the tabs to pull the unit from the dash. Use a small screwdriver to release the clips and disconnect the electrical connections and control cables if necessary.