2018 Terrain - Trailer Wiring - Page 2 - TerrainForum.net: GMC Terrain Forum
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post #11 of 27 (permalink) Old 06-10-2018, 12:43 PM
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Originally Posted by kastner03 View Post
Thatís kinda disappointing, All equinox 2.0tís come with a factory installed hitch and 7 pin plug... even has a nice removable cover in the bumper so you donít see the hitch when not in use.


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itís also odd that when you ďbuild and price ď a terrain the towing package is not an option and it shows the removable hitch cover in the picture of the vehicle you build when you select the 2.0t


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post #12 of 27 (permalink) Old 06-10-2018, 01:05 PM
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Originally Posted by CptSneb2191 View Post
Update - I finally got a bit of courage and decided to install the hitch myself. Thankfully it wasn't as hard as I expected. The fascia removal was the hardest part (mostly due to fear of breaking something), and once that was off it was simple. Took maybe 30-45min to install the actual hitch/wires.

Posting some pictures in case anyone else attempts to DIY this. One important note: There is a screw near the wheel well on both sides that I do not think were accounted for in the install instructions. These screws were why I was having so much trouble removing the fascia before, because I was fighting the screws when pulling on the fascia. Once those were out, taking it off was simple.

Appreciate all of the assistance from the posters here! This is my first forum post in the Terrain Forums.

You are correct! Those two screws were not on the instructions.. Also, anyone who has the Diesel version, your are supposed to remove the DEF tank to get the trailer hitch bolts put through the frame. With some help from a friend you can do this without removing the tank. Just have someone pull the tank to the side a little and you can get the torque wrench in there to put in ALL THREE BOLT on the left side! If you noticed, the towing capacities of the diesel are less than the other two engine models. The reason is not because of the power ( the diesel pulls like a mountain goat), it is because you supposedly can't install all 6 mounting bolts (3 on each side)b, but only 5. But I found a away to do it. The problem lies with the position of the DEF tank. It sit against the underside of the frame where the mounting bolts rest. What I did was shim down the DEF tank with (I think 5 - 1/4") plastic spacers to drop the tank down just enough for the DEF tank not to rub on the heads of the mounting bolts. 5 small bolts support the DEF tank, one spacer for each support bolt did the trick. Poor design on GM's part. Works great.
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post #13 of 27 (permalink) Old 06-10-2018, 09:30 PM
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When we got my wife's 2018 Terrain SLT, it came with the Tow package already , hitch, 7 pin wiring plug but no hitch cover. To our dealers credit they got it with no fuss or blowback. They did say however that none of their Terrains with the Tow package had that cover. For those installing the aftermarket hitch does the rear lights have enough power to run the trailer lights. The Dodge Journey I traded in for that Terrain did not and I had to have it programmed into one of the computers to 'turn on' the switch to enable more voltage.
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post #14 of 27 (permalink) Old 06-18-2018, 10:13 PM Thread Starter
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Originally Posted by Urbansuburban View Post
When we got my wife's 2018 Terrain SLT, it came with the Tow package already , hitch, 7 pin wiring plug but no hitch cover. To our dealers credit they got it with no fuss or blowback. They did say however that none of their Terrains with the Tow package had that cover. For those installing the aftermarket hitch does the rear lights have enough power to run the trailer lights. The Dodge Journey I traded in for that Terrain did not and I had to have it programmed into one of the computers to 'turn on' the switch to enable more voltage.
I took a small camper (~2000lbs) for a test drive last weekend. Trailer lights worked great as-is, I didn't notice any issues. Also pulled surprisingly well, though I didn't get it out on the highway. Just back roads at about 55mph. Trailer included rear brake lights and the orange side-lights that indicate its width (not sure of the actual name of those).
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post #15 of 27 (permalink) Old 06-19-2018, 09:18 AM
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Originally Posted by kastner03 View Post
itís also odd that when you ďbuild and price ď a terrain the towing package is not an option and it shows the removable hitch cover in the picture of the vehicle you build when you select the 2.0t

The option showed when I did a Build & Price.


$450
  • Heavy-duty cooling system, to head off overheating on a long trip under load
  • 2" trailering receiver
  • 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle


Lee

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2018 Equinox 2.0 Premier AWD
Made in Canada


2008 Malibu LTZ
3.6 and 6 speed


Past: 2008 Equinox Sport AWD
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post #16 of 27 (permalink) Old 06-27-2019, 11:18 AM
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nice....how bad was it cutting the bumper?

2018 Terrain Diesel SLE
2012 Acadia SLE
too many formers...2014 Passat/2000 Jeep Cherokee Sport 4dr, 2.5 Rubicon lift and all them goodies/1993 Mazda 626/2000 Ford ZX2 tuners, pulleys, cai, lowered, ricer style lol
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post #17 of 27 (permalink) Old 06-27-2019, 12:32 PM
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The lower facsia is already pre-cut for a receiver hitch. You just remove the cover

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post #18 of 27 (permalink) Old 06-27-2019, 01:32 PM
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Quote:
Originally Posted by Urbansuburban View Post
When we got my wife's 2018 Terrain SLT, it came with the Tow package already , hitch, 7 pin wiring plug but no hitch cover. To our dealers credit they got it with no fuss or blowback. They did say however that none of their Terrains with the Tow package had that cover. For those installing the aftermarket hitch does the rear lights have enough power to run the trailer lights. The Dodge Journey I traded in for that Terrain did not and I had to have it programmed into one of the computers to 'turn on' the switch to enable more voltage.
GN has re-worked the trailer wiring issue. There are fuses for stop/turn/illumination for the vehicle and in the left rear inside fuse box you will find separate fuses dedicated for the stop/turn/illumination of the trailer only. I have confirmed this when the new trailer I purchased left an unprotected left turn signal wire which kept blowing the fuse dedicated for the trailer only. Nothing else in the vehicle was affected, smart idea on GM's part.
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post #19 of 27 (permalink) Old 06-27-2019, 02:46 PM
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Originally Posted by CptSneb2191 View Post
I took a small camper (~2000lbs) for a test drive last weekend. Trailer lights worked great as-is, I didn't notice any issues. Also pulled surprisingly well, though I didn't get it out on the highway. Just back roads at about 55mph. Trailer included rear brake lights and the orange side-lights that indicate its width (not sure of the actual name of those).

The amber side-lights are referred to as clearance lights.
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post #20 of 27 (permalink) Old 06-28-2019, 02:09 PM
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Originally Posted by Lagger1 View Post
The lower facsia is already pre-cut for a receiver hitch. You just remove the cover

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Mine isn't

2018 Terrain Diesel SLE
2012 Acadia SLE
too many formers...2014 Passat/2000 Jeep Cherokee Sport 4dr, 2.5 Rubicon lift and all them goodies/1993 Mazda 626/2000 Ford ZX2 tuners, pulleys, cai, lowered, ricer style lol
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