How to diagnose and replace the brake light switch on Chevrolet Colorado and GMC Canyon?

The brake light switch activates the brake lights when the pedal is depressed. To access the switch, the under-dash panel and the heater/air conditioning duct need to be removed. If voltage is present, check the brake light wires at the tail light housings for power with the brake pedal depressed. If there is no voltage, repair the circuit between the switch and the brake lights. If voltage is present, check for bad ground by using a jumper wire connected to good ground and probing the ground wire terminal at the tail light connector.

Genuine GMC Canyon Brake Light Switch

Brake Lamp Switch

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6 Brake Light Switches found

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GMC Canyon Sensor,Brake Pedal Position
Part Number: 25912943
- Other Name: SENSOR, Brake; Clutch Switch, Stoplamp Switch
$11.13 MSRP: $20.97
You Save: $9.84 (47%)

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Fits the following Vehicles:
2008-2012 GMC Canyon | PICKUP, PICKUP CREW CAB, PICKUP EXTENDED CAB, PICKUP EXTENDED LENGTH | 4 Cyl 2.9L
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GMC Canyon Switch Assembly, Stop Lamp
Part Number: 20887894
- Other Name: SWITCH, Stop Lamp Switch; Stoplamp Switch
$22.31 MSRP: $42.10
You Save: $19.79 (48%)

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Fits the following Vehicles:
2010-2012 GMC Canyon | PICKUP, PICKUP CREW CAB, PICKUP EXTENDED CAB, PICKUP EXTENDED LENGTH | 4 Cyl 2.9L, 5 Cyl 3.7L, 8 Cyl 5.3L
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GMC Canyon Switch Assembly, Stop Lamp
Part Number: 20913529
- Other Name: SWITCH, Stop Lamp Switch; Stoplamp Switch
- Replaces: 25796381, 15186470, 15912229
$10.57 MSRP: $17.49
You Save: $6.92 (40%)

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Fits the following Vehicles:
2004-2009 GMC Canyon | PICKUP, PICKUP CREW CAB, PICKUP EXTENDED CAB, PICKUP EXTENDED LENGTH | 4 Cyl 2.8L, 4 Cyl 2.9L, 5 Cyl 3.5L, 5 Cyl 3.7L, 8 Cyl 5.3L
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GMC Canyon Sensor Assembly, Brake Pedal Position
Part Number: 13597416
- Other Name: SENSOR, Engine Clutch; Clutch Switch, Position Sensor
- Replaced by: 13549047
- Replaces: 25894753
$28.16 MSRP: $44.31
You Save: $16.15 (37%)

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Fits the following Vehicles:
2017-2019 GMC Canyon | EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L
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GMC Canyon Sensor Assembly, Brake Pedal Position
Part Number: 13597430
- Other Name: SENSOR, Brake; Stoplamp Switch
- Replaces: 13589104, 22688000
$18.84 MSRP: $35.58
You Save: $16.74 (48%)

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More Info
Fits the following Vehicles:
2017-2019 GMC Canyon | EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L, 4 Cyl 2.8L Diesel, 6 Cyl 3.6L
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GMC Canyon Sensor Assembly, Brake Pedal Position
Part Number: 13597420
- Other Name: SENSOR, Brake; Stoplamp Switch
- Replaces: 13583367
$14.08 MSRP: $26.56
You Save: $12.48 (47%)

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Fits the following Vehicles:
2015-2021 GMC Canyon | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB SLE - 6'2" BOX, CREW CAB SLT - 6'2" BOX, EXTENDED CAB - 6'2" BOX, SLE CREW CAB - 5'2" BOX, SLE EXTENDED CAB - 6'2" BOX, SLT CREW CAB - 5'2" BOX, SLT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L, 4 Cyl 2.8L Diesel, 6 Cyl 3.6L
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GMC Canyon Brake Light Switch Parts Questions & Answers

Switch Assembly, Stop Lamp
20887894
Q: How to diagnose and replace the brake light switch on Chevrolet Colorado and GMC Canyon?
A: The brake light switch activates the brake lights when the pedal is depressed. To access the switch, the under-dash panel and the heater/air conditioning duct need to be removed. If voltage is present, check the brake light wires at the tail light housings for power with the brake pedal depressed. If there is no voltage, repair the circuit between the switch and the brake lights. If voltage is present, check for bad ground by using a jumper wire connected to good ground and probing the ground wire terminal at the tail light connector.