About a couple of days ago i was driving on the highway my tpms light went off, thanks to my DIC i was able to see that it was the RR tire. But when i pulled over to check the tire, the tire was fine it was holding pressure. Then i went to go check my DIC again, and the sensor was not even showing up. my truck is a 08 with 17k on it. has this happened to anyone else before? Cause i think it is messed up and i dont want to have to spend $100 bucks on a new sensor. I am taking it into Chevy tomorrow and have them take a look at it and give me the verdict.