View Cart

Tekonsha T-One Trailer Wiring Harness Installation - 2016 Buick Enclave

content loading



Customers compare 118270 to these similar products




Products Featured in this Video



How to Install the Tekonsha T-One Trailer Wiring Harness on a 2016 Buick Enclave


Rob: Rob here at etrailer.com, and today we're going to be taking a look at the T-One vehicle wiring harness for factory tow package on our 2016 Buick Enclave.Now our wiring should provide us with all the lights we need to get down the road safely when we're towing our trailer. It's going to provide us the four-pole flat trailer connector and give us our brake lights, our turn signals, and our taillights.Everybody knows you need lights to legally take a trailer down the road so you don't get pulled over, you don't have a ticket. But there's a really big safety aspect to it as well. We don't want anybody running into the back of us because we don't have lights on our trailer. Or if we're changing lanes, we want to make sure that everybody knows exactly what's going on so we can all be safe.Now since our wiring is for the factory tow package on our Buick, it's going to make the installation that much easier. If we didn't have the factory tow package, it would involve a lot more work.

We might have to pull the taillights out, tap into the circuits, along with running a wire all the way up to the battery, even putting in a fuse holder. But since our Buick already has the factory tow package, we're only going to have one connection point on the bottom of our Buick where we're going to plug in our harness. It's as simple as that, and then going underneath the hood and putting a few fuses and relays to activate everything.So now that we've seen what it looks like and gone over some of the features, let's get it installed together. To start out, we want to come to the very back of our Buick, and on the passenger side just outside the muffler right in this general area is where our wiring and plug's going to be. So we want to move underneath, and it's pretty high up underneath the body, so you will need to reach.

But we're going to be looking for a plug that's going to match the harness here. It will be a gray plug shaped like this. But again, it's really high up on the outside of the muffler here. It's going to be right here. So again, just on the very outside right behind the right rear tire.

Now I went ahead and grabbed my plug and actually took it off. There's a little pushpin that's holding it in place. We can see it a little bit better now that it's hanging down.So before I plug my connector in, since it is on the outside of the vehicle, I'm going to apply some dielectric grease. Hopefully, that'll prevent any kind of moisture and corrosion from building up on inside the plug. So I'm just going to put a good amount inside my harness.

We can grab our plug and plug everything together. Give it a quick tug, make sure it locked in place. Then we just want to take our four-pole, and we're going to route it towards the center, right by our hitch. That way, we can get our wiring to the center and it'll be ready for us whenever we're ready to tow our trailer. So let's pull this cover down, move the two tabs. We'll set this aside. I may use some zip ties to zip tie it to the hitch and hide it out of the way.So when we ran our wire, I actually instead of going over the muffler here, I went towards the back. I had my wire go right over the sub-frame brace right here, and I started running it along the back of the hitch, tying up all the excess using some zip ties. I'm going to use my dust cover to hook it onto the safety chain loop. That way, it'll be here for us, but it's not hanging, dragging it down the road.Now we can move under the hood, start putting all the relays and fuses in place. So if we open up our hood, we're going to want to come all the way over to the passenger side right against the firewall, and we're going to find our fusebox. Now to open it up, we're going to have three different little tabs. They're all going to work the same. We just want to push in on that tab and lift up slightly. We'll have one towards the front, one towards the firewall, and one towards the fender. So again, just kind of pushing on that tab, lift up. We'll set the cover aside.We're going to need to put in several different relays and fuses. Now, the cover is going to have a legend on there, and we're going to be looking for all the ones that are for our trailer or for our tow package. So we'll use this as a guide. Then also, look under instructions, and see which fuses and relays go where. Now, we're also going to have relays to put in. We already have one put in, and we're going to put the other one right next to it in this location. Now you can't put this in wrong. It won't line up if it's in the incorrect position. Just want to make sure that those pins go in, and you push it in all the way.Now if we come down from those relays, we'll have this row of 10 amp fuses here. If we go to the very edge close to this other relay right above this spot here, the other 10 amp fuse, we're going to put one more 10 amp fuse. This is going to be for our trailer stop and turn signals. It's a little bit of a tight fit, just because trying to get your fingers in between everything. But make sure the fuses are in all the way, and we can go through all the locations that we put fuses.So if we come to the very top over here where we have these three 10 amp fuses, if we come to the very end one here, that's going to be our trailer park lamp. That's going to be position F41. You want to put in a 10 amp fuse there just like we did here. Now if we come down to this center section where we have all these 30 amp fuses in the middle row here, the top 30 amp fuse is going to be position F34. We're going to put a 30 amp fuse in there. That's for our trailer brake position. Right below that, it's going to be our trailer power. That's going to be position F30. We're going to put a 30 amp fuse there as well. Then if we move over, both of these relays are going to be put in here. This one here is for our left trailer stop and turn signal, and this is for our right trailer stop and turn signal. Then if we come down, those two 10 amp fuses, the one I just put in, that'll be for our left trailer stop and turn. The one right below that'll be for our right trailer stop and turn.If you follow the other road down right here, we're going to have a 10 amp fuse that's real close to this large relay. That's going to be our trailer backup fuse. It needs to be the 10 amp. This is going to be position F8. That should be all the relays and fuses that you need to put in place. Again, you can check the lid, check your instructions, and look for any fuse that is trailer-related. It'll either say trailer backup, trailer power, but we want to put all those fuses and relays in place.Now the final step of our installation is going to be testing our wiring to make sure everything is working properly. So if I turn on my headlights, you can see the taillight function is working, as well as the left turn signal, the right signal, and our brake lights. Now that we've verified that all the lights are working properly, we're ready to hook up to our trailer and hit the road.And that'll finish up your look at the T-One vehicle wiring harness for a factory tow package on our 2016 Buick Enclave.


Questions and Comments about this Video

add comment

Info for this part was:

Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Andrew L
Video by:
Kathleen M
Video Edited:
Dustin K
Installed by:
Cole B
Test Fit:
Shane T
Test Fit:
Randy B
Video Edited:
Chris R
Test Fit:
Andrew S
Test Fit:
Shane H
Test Fit:
Robert C
Test Fit:
David F
Video by:
Michael B
Test Fit:
Ryan G

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.