Trailer Wiring Harness Installation - 2015 GMC Terrain

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How to Install the Trailer Wiring Harness on a 2015 GMC Terrain


Speaker 1: Today on our 2015 GMC Terrain, we're gonna be taking a look at showing you how to install the Curt vehicle wiring harness for factory tow package with a 4-pole flat trailer connector. Part number C56210. Here's what our wiring's gonna look like once we have it installed. It's gonna provide us a 4-pole flat trailer connector, so we're gonna have a our running lights, turn signals, and our break lights.It is designed to stay on the inside of the vehicle, until we're ready to tow. Once we are, we can drop it out the back hatch, making sure we stay away from the latch itself, and the weather stripping will provide enough cushion that the hatch won't crush the wires. We can close our hatch.

Our connector will be right by our hitch.Whenever we're not towing, we can actually lift up the floor covering here, and we can store our wire right by our spare tire here. Now, as far as the installation goes, there's gonna be a simple plug that's right here on the drivers' side that our harness is gonna plug directly into. Now that we've seen what our harness looks like, let's go ahead and show you how to get it installed. In order to get our wiring harness in place, we're gonna need to find a factory plug that's gonna match up with the one on our harness.If we come to our back hatch, and we lift up the floor covering. If we come to the drivers' side, right behind the foam we have here, we're gonna find the connector right underneath that panel.

It's gonna be that gray connector right underneath here. Now, it may be a little difficult to reach, but if we take our end of our harness, we should be able to reach in and plug it in.Just wanna make sure it locks into place, and then when we're not using our wiring, we can actually just store it back here with our spare tire. Before we put everything back together, I'll go ahead and make sure our wiring's working. I'm gonna plug in my 4-pole tester, and you can pick one up on our website at etrailer.com using part number I26. If I turn on my headlights, we can see that it's working, as well as the left turn signal, right turn signal, and our breaks.We're ready to hook up to our trailer and hit the road.

That'll finish up your look at the Curt the-connector vehicle wiring harness for factory tow package with the 4-pole flat trailer connector. Part number C56210 on our 2015 GMC Terrain.


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Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Brent H
Test Fit:
Brent H
Employee Robert C
Test Fit:
Robert C
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
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Jacob T
Employee Chris R
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Chris R
Employee Kathleen M
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Kathleen M
Employee Zach D
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Zach D

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