How To Tell If a 2020 GMC Terrain Has the Factory Tow Package for Trailer Wiring
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
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.
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
Chris R.
7/29/2020
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- CURT
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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?