TPMS
4 Answers
You can get new ones from tirerack.com, reasonably priced, maybe $41 each
Its my understanding that they are set for the original vehicle that they came on. If you try and use them on a different brand especially... you may run into the problem of them going off all the time because the weight of the vehicle is gonna be different. My will go off with just a slight temperature change. But I will look into it with my Service Techs.