How to install auxiliary lights on a GMC?

This DIY video tutorial covers the process of mounting the LED auxiliary lights as well as hooking up power so that they light up when the vehicle is put in reverse. The process covered in this video will be the same of similar on many other vehicles. GMC, Chevy Silverado, Ford, Dodge, Toyota, Subaru and many more.

What kind of wiring does a GMC trailer need?

This 7 Pin Trailer Wiring Diagram Gmc model is far more suitable for sophisticated trailers and RVs. It may transfer power better hence the connector is recommended for higher-level electric in the vehicle. Here’s the diagram for 7-pin connector. White Pin to your ground.

What are the pins on a GMC Sierra trailer?

Here’s the diagram for 7-pin connector. White Pin for the ground. Brown Pin for unwanted markers, tail lamps, and running lights. Yellow Pin for abandoned brake light and left handed markers. Green Pin Yellow Pin for appropriate brake light and right turn mark.

How many pins do you need for a trailer light?

If your truck has a built-in 7-pin socket, but you only need 5 of the pins. Use the 7-pin connector anyway (see below), and just leave out the last 2 wires. It accomplishes the same thing for 5 wires, but with a connector that’s compatible with your truck.

Are there lights on my GMC Duramax trailer?

Truck is not detecting the trailer. I have a 5 pin from the harness to a 7pin adapter (new and old adapter have been tried). No brakes are installed on the trailer, that wire is not grounded but is terminated. Trailer lights work when connected to my Yukon. Trailer has 4 led running lights and 2 led tail lights.

Why are the lights on my GMC 2500 not working?

Just bought a 2020 GMC 2500hd AT4, and am having an issue with trailer lights not working. Truck is not detecting the trailer. I have a 5 pin from the harness to a 7pin adapter (new and old adapter have been tried). No brakes are installed on the trailer, that wire is not grounded but is terminated.

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