Wondering what happened & who can help me so I'm not taken advantage of at my dealership. I had two tire sensors that were dead & instead of paying $600 at dealership, I paid a 3rd from a shop that put in genuine GM parts & fixed my sensors. As soon as that was fixed, I started having my STABILITRAK light go on saying TRACTION CONTROL is off & SERVICE BREAK SYSTEM. At first it would turn on & off, but now it turns on as soon as I start the vehicle & stays on the entire time. I have recently noticed too that my cruise control isn't working, the light won't even turn on. I've had people tell me it's just a coincidence that my tire sensors were just replaced & this happened, but I don't know. PLEASE HELP!