How to Service and Repair a Headlight Dimmer Switch on 2007 Toyota Tundra?

Service of the Headlight Dimmer Switch begins with disconnecting the negative cable from the battery until 90 seconds have passed to stop Air Bag and seat belt pretensioner activation. Users must switch off the ignition and wait until navigation systems finish memory logging and settings storage before connection removal. The service starts with removal of lower No.2 and No.3 steering wheel covers before proceeding to detach the steering pad (with or without the steering pad switch) and finally disassembling the steering wheel assembly. The technician needs to drop both manual tilt and telescopic steering column covers and detach the manual tilt and telescopic switch for power tilt and power telescopic systems. The windshield wiper switch assembly combined with the spiral cable sub-assembly can be uninstalled from the system after connector removal and screwdriver use for claw detachment. After disconnecting the connector you need to detach the claw by loosening the band clamp from the headlight dimmer switch assembly. To install the device fit the headlight dimmer switch assembly on the steering column shaft while it aligns with cutouts then attach the claw and finish with connector joining. Reinstall the windshield wiper switch assembly and spiral cable sub-assembly together with the tilt and telescopic manual switch. Then reinstall the upper and lower steering column covers according to all configurations. The installation process completes with the steering wheel and pad assemblies as well as the lower steering wheel covers while reattaching the battery cable to the negative terminal followed by SRS warning light checks because some devices need to initialize after cable reconnection.

OEM 2007 Toyota Tundra Dimmer Switch

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2007 Toyota Tundra Dimmer Switch
Part Number: 84140-02670
$133.94 MSRP: $189.60
You Save: $55.66 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Turn Signal & Combination Lever; Combination Switch; Multi Purpose Switch; Headlamp Switch
- Replaces: 84140-0C060
- Part Name Code: 84140
- Item Weight: 1.40 Pounds
- Item Dimensions: 15.6 x 11.3 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84140-02670
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2007 Toyota Tundra Submodels:
- Base, Limited, Platinum, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L FLEX, 8 Cyl 5.7 L GAS
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2007 Toyota Tundra Dimmer Switch
Part Number: 84140-04061
$140.75 MSRP: $199.25
You Save: $58.50 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Turn Signal & Combination Lever; Combination Switch; Multi Purpose Switch; Headlamp Switch; Headlamp Dimmer Switch
- Part Name Code: 84140
- Item Weight: 1.40 Pounds
- Item Dimensions: 15.3 x 11.4 x 3.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84140-04061
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2007 Toyota Tundra Submodels:
- Base, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L GAS
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2007 Toyota Tundra Headlamp Switch
Part Number: 84140-07140
$233.80 MSRP: $333.82
You Save: $100.02 (30%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Turn Signal & Combination Lever; Combination Switch; Multi Purpose Switch; Headlamp Dimmer Switch
- Part Name Code: 84140
- Item Weight: 1.60 Pounds
- Item Dimensions: 14.9 x 11.4 x 2.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84140-07140
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2007 Toyota Tundra Submodels:
- Limited | 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L GAS
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2007 Toyota Tundra Instrument Light Rheostat, Passenger Side
Part Number: 84119-0C041
$98.50 MSRP: $138.26
You Save: $39.76 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rheostat, Light Control; Instrument Panel Dimmer Switch; Rheostat
- Position: Passenger Side
- Replaces: 84119-0C040
- Part Name Code: 84119
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84119-0C041
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2007 Toyota Tundra Submodels:
- Limited, Platinum | 8 Cyl 4.6 L GAS, 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L FLEX, 8 Cyl 5.7 L GAS
View related parts
2007 Toyota Tundra Instrument Light Rheostat, Passenger Side
Part Number: 84119-0C031
$98.50 MSRP: $138.26
You Save: $39.76 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Rheostat, Light Control; Instrument Panel Dimmer Switch; Rheostat
- Position: Passenger Side
- Replaces: 84119-0C030
- Part Name Code: 84119
- Item Weight: 1.00 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 84119-0C031
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2007 Toyota Tundra Submodels:
- Base, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L FLEX, 8 Cyl 5.7 L GAS
View related parts
2007 Toyota Tundra Dimmer Switch
Part Number: 84140-0E012
$239.86 MSRP: $342.47
You Save: $102.61 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch Assembly, Headlamp Dimmer; Turn Signal & Combination Lever; Combination Switch; Multi Purpose Switch; Headlamp Switch; Headlamp Dimmer Switch; Signal Switch
- Replaces: 84140-0E011, 84140-0E010, 84140-48050
- Item Weight: 1.20 Pounds
- Condition: New
- SKU: 84140-0E012
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following 2007 Toyota Tundra Submodels:
- Limited | 8 Cyl 4.7 L GAS, 8 Cyl 5.7 L GAS

2007 Toyota Tundra Dimmer Switch

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2007 Toyota Tundra Parts Questions & Experts Answers

Q: How to Service and Repair a Headlight Dimmer Switch on 2007 Toyota Tundra?
A: Service of the Headlight Dimmer Switch begins with disconnecting the negative cable from the battery until 90 seconds have passed to stop Air Bag and seat belt pretensioner activation. Users must switch off the ignition and wait until navigation systems finish memory logging and settings storage before connection removal. The service starts with removal of lower No.2 and No.3 steering wheel covers before proceeding to detach the steering pad (with or without the steering pad switch) and finally disassembling the steering wheel assembly. The technician needs to drop both manual tilt and telescopic steering column covers and detach the manual tilt and telescopic switch for power tilt and power telescopic systems. The windshield wiper switch assembly combined with the spiral cable sub-assembly can be uninstalled from the system after connector removal and screwdriver use for claw detachment. After disconnecting the connector you need to detach the claw by loosening the band clamp from the headlight dimmer switch assembly. To install the device fit the headlight dimmer switch assembly on the steering column shaft while it aligns with cutouts then attach the claw and finish with connector joining. Reinstall the windshield wiper switch assembly and spiral cable sub-assembly together with the tilt and telescopic manual switch. Then reinstall the upper and lower steering column covers according to all configurations. The installation process completes with the steering wheel and pad assemblies as well as the lower steering wheel covers while reattaching the battery cable to the negative terminal followed by SRS warning light checks because some devices need to initialize after cable reconnection.