I had just gotten my 2010 Yukon for about a month now. Didn't see auto start on the window sticker. Was planning on taking it in to get installed. I have the control that has the auto start button already, so figured hey why not. Followed the instruction in the back of the controller, and WHAM the car started . Now I have an extra $250 or whatever the dealer was going to charge me to install one, to buy something else for the truck. So if any of you guys get the same controller for your truck, mind as well try it and you might be surprise like me.