How To Tell If a 2020 GMC Terrain Has the Factory Tow Package for Trailer Wiring

Question

Question:

I need a trailer wiring harness for my 2020 GMC Terrain but not sure if I have the factory tow package or not. How do I tell ?

asked by: Jeffery D

0

Expert Reply:

In order to determine if a 2020 GMC Terrain has the factory tow package you will need to take a look in the rear fuse box on the driver side of the vehicle. In the fuse box there will be two locations you need to check, K2 and K3 which are for the trailer lights. These slots should be empty but what we are looking for is silver terminals inside each of the holes for the prongs on the relay. If there are silver terminals then you have the factory tow package but if not then you do not have the factory tow package. If you are not sure about the silver terminals then check to see if wires are coming from the back of the K2 and K3 locations. If wires are present then you have the factory tow package but if not then you don't have the factory tow package.

expert reply by: Conner L

0

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Mike B.

7/24/2020

do i have to install a aftermarket transmission cooler on a 2020 terrain 2.0tb to pull a pop up camper with weight of 1500lbs or will it be ok without it. not going long distances maybe 35-40miles several times. car does not have tow pkg on it

Reply

Chris R.

7/29/2020

It certainly wouldn't hurt to add a supplemental cooler but for a small pop up camper being towed shorter distances it's not necessarily vital. The Terrain has enough capacity to pull something like that without too much effort.

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William J.

7/10/2020

Your Video on the install says the opposite .. If the back terminals are empty and no pins then and the front terminal is filled ...you have the tow kit. Which is it?

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Chris R.

7/14/2020

Conner's description above is correct. With that being said, you can also call your local GM dealer with your VIN and they can tell you for certain whether or not your vehicle is equipped with the tow package.

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William J.

7/19/2020

@ChrisR foillow up fyi Got the 118285 kit ....My 20 SLE Terrain has no pins in the 1 or 2 position. It DOES have the plug in adapter behind the Bumper. Plugged in the adapter and tossed the relays as not needed. the 4 pin works fine. the written instructions RE the pins and relays needed are incorrect ! Evidently according to the GMC tech GM is wiring all to accept the plug in adapter and deleted the relay locations as not needed. Anyone purchasing the more expensive "wire it" kit will be disappointed. The 118285 should work fine and in fact includes relays that are not needed ...a waste of additional $

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Jeremy

10/5/2020

@WilliamJ same on my 2019 Terrain, no pins in the 1 or 2 position but have the plug behind the bumper. I plugged in the wiring harness but I didn't get any power to my test prob. will look at it a little further. Hopefully, I do not have to buy the other adapter.

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Answer 1

To find out if your 2020 GMC Terrain has the factory tow package you will need to get into the fuse compartment in the rear of your vehicle. This fuse box will be located on the drivers side beneath the window. Once inside you will want to find the…

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Answer 2

Yes we can! The correct hitch for the 2024 Toyota Highlander Platinum is the etrailer Class 3 hitch #e75ZR. We double checked with the manufacturer and confirmed that it will indeed fit the Platinum model. The etrailer #e75ZR hitch is considered a…

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Answer 3

We do have a trailer wiring harness for a 2020 GMC Terrain without the factory tow package, which is a universal splice-in kit. For that you'd need the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector #C59236.

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Answer 4

The trick here is to get as close as possible. If you are talking about less than 2 inches or so, there is nothing to worry about. Having the trailer tongue a bit too high is preferable to it being too low. You may be a good candidate for an…

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Answer 5

There isn't a specific distance you want to have between the bumper of a vehicle and the hitch ball, but in general you'll want more than an inch. This will give you additional leeway when hitching up the trailer so that you…

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Answer 6

If you do not have a towing package you will not have the locations for the relays in the fuse box that come with the Curt T-connector wiring harness part #C56375 or the Curt wiring harness part #C94FR because they are designed for the 2018 GMC…

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Answer 7

The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item #C94FR requires no extra fuses or relays to be purchased separately. Everything you need comes included with this wiring kit. You will be able to quickly and easily…

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Answer 8

I would be happy to help clarify the confusion and set your 2022 Toyota Highlander XSE up with a hitch for your bike rack. The etrailer Trailer Hitch Receiver item #e75ZR does fit your Highlander XSE. This hitch is custom fit and bolts directly to…

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Answer 9

We actually have a customer of ours that did successfully install the Curt #C99FR on their 2021 Toyota Highlander with the XSE package, so we do have it listed as fitting. With that being said, they did mention that the exhaust did need to be lowered…

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Answer 10

We have three options for trailer wiring that I would recommend for your 2020 Chevy Equinox. If you have the tow package already you'd want the part #C94FR which easily installs to the vehicle's factory wiring (see install video). If you do…

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Answer 11

In regards to a 2018 GMC Terrain, not all models with the tow package port will actually have the tow package wiring. In other words, the port may be present but the wires are not run from this to the fuse block therefore the port is inoperable even…

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Answer 12

Since your 2021 Chevy Equinox does not have the factory tow package the trailer wiring kit you need is the part #118750 which installs by plugging inline with the taillight connectors. I attached an install video for this for you to check out as…

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How To Tell If a 2020 GMC Terrain Has the Factory Tow Package for Trailer Wiring

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