I am writing this to maybe help others with their choice of these sensors. The car I was working on was a 2010 Lexus ES350. If you plan on installing them yourself, you'll need a tool that can read each sensor's transmitter ID and convert it to hexadecimal number format. You will need a scanner that will allow you to register each sensor on your computer. I have an Autel MS906BT scanner and an Autel TS401 TPMS scanner. Contrary to their documentation, these sensors do not have a hexadecimal number printed on the sensor body. In fact, there are no numbers printed on the sensor, but the instructions state that you must write the numbers down. After removing the tires, mounting and remounting the tires, I had to use my Autel TS401 to read each sensor and get the transmitter ID in hex. I then had to enter each hex ID with the scanner and the scanner replaced the old sensor IDs with the new IDs. As soon as I did that the TPMS light went out and it is now reading the sensors. If you were DIY and thinking about changing them yourself, I wouldn't do it because they don't program themselves at Lexus. You won't save money if you buy them and then have to pay someone to program them for you instead of just taking your car to a tire shop and having them do it. I will say they work and I hope they will last.