How to remove and install the A/C Switch control assembly on Toyota Highlander?

You must turn off the battery's negative power connection. Take off the middle panel around the A/C Switch for drive-side Highlanders built before 2013, and for Lexus models you need to lift both floor-paneled sections covering approach to the gear panel. You'll see the mounting screws once you take off the trim; these screws are found at the bottom of the A/C Switch and audio unit on 2003 and earlier Lexus models, but four screws on 2004 and later versions. There are wire clamps that hold the assemblies together when you take off their attachments. For Highlanders, find the screws holding the A/C Switch and audio unit, take them out, pull the assembly slightly away from the car, and disconnect all wires. Unscrew the audio unit from the control panel off its brackets. In all cars made after 2004, the center trim panel now acts as a base where the A/C Switch is attached. To free the panel, pry it out from the dash with a plastic trim tool. After that, disconnect the power cables to the A/C by gently pulling the panel out. Twist off the two screws that connect the A/C Switch to the center trim panel. To take out the control panel at the back, push down with a trim tool to unlock it from where it fits in the floor console, disconnect the electrical cables, and then pull out the panel. Follow the same steps as removal to put everything back into place. Run your engine before you finish to make sure your A/C works well.

Genuine Toyota Highlander A/C Switch

Air Conditioning Switch

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107 A/C Switches found

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Toyota Highlander Heater Blower Switch
Part Number: 84732-48010
$69.96 MSRP: $98.62
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Product Specifications
- Other Name: Switch, Heater Blower; Blower Motor Switch, Fan Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA, MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA
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Toyota Highlander Dash Control Unit
Part Number: 55904-48100
$1107.30 MSRP: $1653.36
You Save: $546.06 (34%)
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Product Specifications
- Other Name: Housing Sub-Assy, Heater Control; Dash Control Unit, Heater Control
- Manufacturer Note: W(AUTO AIR CONDITIONER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA
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Toyota Highlander Dash Control Unit
Part Number: 55904-48110
$947.78 MSRP: $1415.17
You Save: $467.39 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Housing Sub-Assy, Heater Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA, MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA
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Toyota Highlander Heater Control Housing Sub-Assembly
Part Number: 55904-48180
$1075.00 MSRP: $1605.12
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Product Specifications
- Other Name: Housing Sub-Assy, Heater Control; Dash Control Unit
- Manufacturer Note: LIMITED(USA)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2007 Toyota Highlander | 6 Cyl 3.3L | 3MZFE; MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA
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Toyota Highlander Housing Sub-Assembly Heater Control
Part Number: 55904-48190
$947.78 MSRP: $1415.17
You Save: $467.39 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Housing Sub-Assy, Heater Control; Dash Control Unit, Heater Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.3L | 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU28L-BRANKA, MCU28L-BWANKA
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Toyota Highlander Control Knob Sub-Assembly
Part Number: 55905-48010
$21.29 MSRP: $29.76
You Save: $8.47 (29%)
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Product Specifications
- Other Name: Knob Sub-Assy, Control; Knob
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA, MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E400
$544.29 MSRP: $812.70
You Save: $268.41 (34%)
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Product Specifications
- Other Name: Control Assy, Air Conditioner; Dash Control Unit, Temperature Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2019 Toyota Highlander | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS; ASU50L-ARTNKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-48580
$529.02 MSRP: $789.19
You Save: $260.17 (33%)
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Product Specifications
- Other Name: Control Assy, Air Conditioner, NO.2; Heater & AC Control, Temperature Control
- Manufacturer Note: REAR AIR CONDITIONER-AUTO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2013 Toyota Highlander | Grande, Limited, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFXE, 3MZFE; ASU40L-BRTNKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GVU48L-BRXGKA, GVU48L-BRXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander Control Knob Sub-Assembly
Part Number: 55905-48020
$21.29 MSRP: $29.76
You Save: $8.47 (29%)
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Product Specifications
- Other Name: Knob Sub-Assy, Control; Knob
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA, MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E680
$427.93 MSRP: $638.38
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Product Specifications
- Other Name: Control Assembly, Air Co; Heater & AC Control, Heater Control
- Manufacturer Note: PLATINUM PACKAGE
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2023 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E470
$544.29 MSRP: $812.70
You Save: $268.41 (34%)
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Product Specifications
- Other Name: Control Assy, Air Conditioner, NO.2; Heater & AC Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2019 Toyota Highlander | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS; ASU50L-ARTNKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E420
$544.29 MSRP: $812.70
You Save: $268.41 (34%)
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Product Specifications
- Other Name: Control Assy, Air Conditioner
- Manufacturer Note: OUTSIDE REAR VIEW MIRROR-RETRACTABLE(COLORE),WITH(HEATER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2019 Toyota Highlander | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS; ASU50L-ARTNKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA
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Toyota Highlander Heater Control Housing Sub-Assembly
Part Number: 55904-48021
$1069.21 MSRP: $1596.47
You Save: $527.26 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Housing Sub-Assy, Heater Control; Dash Control Unit, Heater Control
- Manufacturer Note: W(AUTO AIR CONDITIONER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2004 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E260
$740.46 MSRP: $1105.61
You Save: $365.15 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assy, Air Conditioner; Dash Control Unit, Temperature Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2013 Toyota Highlander | Limited, Medium, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE; ASU40L-ARTNKA, GSU40L-ARAGKA, GSU40L-ARAMKA, GSU40L-ARANKA, GSU40L-ARASKA, GSU45L-ARAGKA, GSU45L-ARAMKA, GSU45L-ARANKA, GSU45L-ARASKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E710
$445.65 MSRP: $664.83
You Save: $219.18 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assembly, Air Co; Dash Control Unit
- Manufacturer Note: AUDIO-12.3INCH(EMV) DECKLESS JBL11SP&BACK MONITOR-PANORAMIC VIEW MONITOR
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2023 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E690
$472.97 MSRP: $705.58
You Save: $232.61 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assembly, Air Co; Heater & AC Control, Heater Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2023 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E590
$480.11 MSRP: $716.22
You Save: $236.11 (33%)
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Product Specifications
- Other Name: Control Assembly, Air Co; Dash Control Unit, Temperature Control
- Manufacturer Note: CANADA SPEC&HYBRID SPECIAL EDITION
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2023 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E410
$606.91 MSRP: $906.19
You Save: $299.28 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assy, Air Conditioner
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2017 Toyota Highlander | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS; ASU50L-ARTNKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E190
$637.68 MSRP: $952.14
You Save: $314.46 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assy, Air Conditioner, NO.2; Heater & AC Control, Temperature Control
- Manufacturer Note: REAR AIR CONDITIONER-WITH(REAR AUTO AIR CONDITIONER)
- Replaces: 55900-48020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2008-2011 Toyota Highlander | Grande, Limited, Medium, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFE; ASU40L-ARTNKA, 2GRFXE, 3MZFE; ASU40L-BRTNKA, GSU40L-ARAGKA, GSU40L-ARAMKA, GSU40L-ARANKA, GSU40L-ARASKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-ARAGKA, GSU45L-ARAMKA, GSU45L-ARANKA, GSU45L-ARASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GVU48L-BRXGKA, GVU48L-BRXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander Air Conditioner Control Assembly
Part Number: 55900-0E691
$330.01 MSRP: $473.21
You Save: $143.20 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: CONTROL ASSY, AIR CO; Heater & A/C Control, Heater Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2022-2024 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA

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Toyota Highlander A/C Switch

The driver can control the air conditioning circuit with the A/C Switch of the Toyota Highlander to control the climate system inside the cabin. The A/C Switch transmits the assigned temperature setting to other modules for quick response. Located in the dash panel that contains the larger climate control unit, the switch makes use of relays to open or close electrical circuits so that the compressor and associated components can be switched on or off for cooling or heating as required. The A/C Switch on the Toyota Highlander ensures that SUV drivers can easily control the climate functions. It prevents the system from operating continuously, ensuring it doesn't waste fuel and preventing interior temperatures from drifting outside the comfort range selected. Commands are physically enacted using easily accessible buttons, dials, or knobs that send signals to a module seen as the system's central brain. When the Toyota Highlander A/C Switch is activated, the module regulates airflow speed and temperature blend to the requested level. A malfunctioning A/C Switch on your Toyota Highlander can cause your circuit to lock in the on position, resulting in nonstop cold air or no climate response at all.

If you are in demand for superior quality and affordable OEM Toyota Highlander A/C Switch, then shop with us! We own a wide range of the reduced-priced genuine Toyota Highlander A/C Switch. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Highlander A/C Switch Parts Questions & Experts Answers

Heater Blower Switch
84732-48010
Q: How to remove and install the A/C Switch control assembly on Toyota Highlander?
A:
You must turn off the battery's negative power connection. Take off the middle panel around the A/C Switch for drive-side Highlanders built before 2013, and for Lexus models you need to lift both floor-paneled sections covering approach to the gear panel. You'll see the mounting screws once you take off the trim; these screws are found at the bottom of the A/C Switch and audio unit on 2003 and earlier Lexus models, but four screws on 2004 and later versions. There are wire clamps that hold the assemblies together when you take off their attachments. For Highlanders, find the screws holding the A/C Switch and audio unit, take them out, pull the assembly slightly away from the car, and disconnect all wires. Unscrew the audio unit from the control panel off its brackets. In all cars made after 2004, the center trim panel now acts as a base where the A/C Switch is attached. To free the panel, pry it out from the dash with a plastic trim tool. After that, disconnect the power cables to the A/C by gently pulling the panel out. Twist off the two screws that connect the A/C Switch to the center trim panel. To take out the control panel at the back, push down with a trim tool to unlock it from where it fits in the floor console, disconnect the electrical cables, and then pull out the panel. Follow the same steps as removal to put everything back into place. Run your engine before you finish to make sure your A/C works well.