Just traded my 1500 for a 2011 Chevy 2500, with tow package (tow mirrors and brake controller). I do not have owner manuals yet do the factory brake controllers work the same as my P3 controller?
I used a P3 in several vehicles... the built-in controllers in the GM products (haven't used Ford's or Ram's versions) work better in my opinion. They're hooked into the truck's computer and take into account speed and how hard you hit the brakes.