I have a 2011 Chevy Silverado that is having issues. When I go to put the truck in drive. It feels like it is slipping gears along with my stabili-track light coming on and then going off. As well as when I go to roll up the windows or use my turn signal my lights almost like flicker. From what I can see online it looks like the transmission control module, but I wanted to get other input before dumping a lot of money into it.