After a few searches I'm hoping for more info. The light came on and the pressure in the tires was a little high when I checked it because its much warmer outside now, after lowering all 4 and checking pressures with a good quality digital guage, I set them at 35 psi. Since the pressure changes there have been 20-30 key cycles and the light will not go out. I'd like to get rid of these sensors, anyone know how? If the light needs to be turned off manually after it comes on then how? The local tire shop wants $ to hook up their tpms tool and they said more $ if they need to re-train them for their position (LF, RR, etc). I've been meaning to stop by Orielly's and hook up their scan tool but haven't had time. I know the sensors in our 08 Yukon are set up position specific after rotations and the sensor that flips out will give its location... this car just has a light, so what good are they? Just seems like anything regarding these sensors is a waste of cash. THX in advance for the info