I just bought 4 new TPMS from Sewell Lexus and had Discount Tire set them for me. He had some problems with the OEM sensors but he lowered the tire pressure until his unit detected it and then downloaded it into my car. By the way I had him set up these new TPMS sensors as the 2nd set of tires and not the Main, My OEM wheels have the original sensors in them and they are still listed as my Main TPMS wheels. My custom wheels are the 2nd set. Kinda like having a summer set of wheels and a winter set of wheels, the car can detect 2 sets of sensors.