Re: Does my JGC have trailer brakes?
If you have the factory towing package, it is prewired for a brake controller. You should have received a wiring harness and instructions that plugs right into a connector that is located under the dash, on top of the parking brake pedal (if not, you can purchase off e-Bay for under $20). You can also purchase an aftermarket harness or some brake controllers come with the harness. If you do a search on the forum, you will find several threads about this, along with instructions on how to do the installation. Also, some members have suggestions on where to mount the brake controller.