OEM Trailer Brake addition

[swathdiver]

My ‘18 Tahoe came with what I assume is a harness for an aftermarket controller in the glove box. Of course it is not hooked to anything in there. Plugs under the dash somewhere.

The answer, per interwebz, is no. Adding the OEM trailer brake is not going to happen. Wamp wamp.

It's quite involved and even calls for different brake pads. I would say it could be done but at what expense?

 

[Doubeleive]

ya the aftermarket connectors are there on any with a tow package, the 2 power wires are tucked in the engine compartment one is on the drivers side of the fuse box down in between the fender and fuse box, the other taped down on the main harness and connect to the 2 external power studs on the front of the fuse box I hooked mine up and then taped into the power at the trailer connector for some backup led flashers, the rest of the connection is tucked under the dash I think near the steering column. If you download the gm upfitter guide it tells you where everything is.

 

[dmad1]

ya the aftermarket connectors are there on any with a tow package, the 2 power wires are tucked in the engine compartment one is on the drivers side of the fuse box down in between the fender and fuse box, the other taped down on the main harness and connect to the 2 external power studs on the front of the fuse box I hooked mine up and then taped into the power at the trailer connector for some backup led flashers, the rest of the connection is tucked under the dash I think near the steering column. If you download the gm upfitter guide it tells you where everything is.

Where do I get the "gm upfitter guide" ?

 

[Doubeleive]

GOOGLE is your friend
https://www.gmupfitter.com/pdflists/view/35

 

[SSpinball]

No. you need everything, lots hardware and software,
including harness, master cylinder, and booster.
not economically doable.