Lexus charged $200 per tire to replace the tire pressure sensors. Received them and took them to a tire shop here in Naples, Florida. The manager was less optimistic that they would work. But when he could "read" them directly into the boxes with his E-Meter, he got even more excited. Bought 5 because a faulty sensor in the spare would also turn on the dashboard light. They've been for a month and are working great! Highly recommended.