Do I need a tow package

We just purchased a 2012 Yukon Denali and plan on picking up our new 176T on thursday.  The Denali had a factory installed towing package.  My question Do we need to put anything else on the TV prior to picking up the Pod?  We always had a breaking system installed on out other vehicles when pulling a TT but now with the new car/towing/breaking package I'm not sure.  

In reading the specs for a Chev. 1500 Silverado, (not a Denali, but same family), the factory tow package

Your trailer has brakes. You need a Prodigy brake controller. Even though you have a heavy vehicle you are still being pushed by a ton and a half of inertia.

Let me tell you a story. I had a 36' Diesel Pusher motor home with air brakes. I was towing a Honda Pilot. I rigged the Pilot with air brakes off the main coach (ask if interested).

I was tooling along across a bridge in New Orleans. A little Mazda Miata passes me on the left. Jumps in my lane, then hits the brakes to take the exit to the right. I hit the brakes hard and the air horn even harder. The brakes on the toad saved my bacon.

Always use the trailer brakes. Other than that, put a ball in the receiver and enjoy. You have a great rig.

There's also a wireless version of the Prodigy line which some here have and like.  Plug in and go.

I'll echo dsmiths in his praise of the wireless prodigy ... we have one as well and it is so easy to use, and portable when we eventually trade-up to a new TV down the road.