2020 Sierra SLE 2.7L

[Daniel H]

I just purchased this truck. I am curious as to why there is a small wire harness with a connector at one end in my glove box? The truck does not have trailer brake controller so maybe a jumper harness for an aftermarket one? Thanks

[Justin Holland]

On 6/9/2020 at 9:35 PM, Daniel H said:

I just purchased this truck. I am curious as to why there is a small wire harness with a connector at one end in my glove box? The truck does not have trailer brake controller so maybe a jumper harness for an aftermarket one? Thanks

I will check my glove box tomorrow. I have the same truck.

[newdude]

More than likely that is the trailer brake controller jumper for wiring in an aftermarket controller.  

 

Probably looks something like this?

 

Edited July 28, 2020 by newdude