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2020 Colorado

Old Nov 13, 2025 | 5:38 PM
  #1  
Isabell's Avatar
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Default 2020 Colorado

Greetings,
I have a 2020 Colorado LT, 3.6L-V6, 63" bed with a crew cab setup. My question is two fold;
1) is it prewired for just adding the stock GM trailer brake control switch assembly on to the dash? (PN 84108375)
Trailer Break Controller
Trailer Break Controller
Fog Lamp housing Less Bezel
Fog Lamp housing Less Bezel

2) Is it prewired to just remove the plastic fog light place holders and install actual fog lights?
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Old Nov 17, 2025 | 11:25 AM
  #2  
Hulk40187's Avatar
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Joined: May 2025
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Default

Originally Posted by Isabell
Greetings,
I have a 2020 Colorado LT, 3.6L-V6, 63" bed with a crew cab setup. My question is two fold;
1) is it prewired for just adding the stock GM trailer brake control switch assembly on to the dash? (PN 84108375)
Trailer Break Controller
Trailer Break Controller
Fog Lamp housing Less Bezel
Fog Lamp housing Less Bezel

2) Is it prewired to just remove the plastic fog light place holders and install actual fog lights?
Most vehicles come with the same harness regardless of the trim level(i believe it’s called) you should be able to pop the panel off where the trailer brake control should be and look behind it for the connector, you may also have to upgrade the cluster and computer as they are not setup for that specific switch I would do some research on that portion, Same goes for the fog lights, look behind your bumper for the connector it’s usually taped up to the harness or secured somewhere near it, you should be able to just “plug and play” with these especially if you already have a Fog switch, let me know if this helps.
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