I bought this because I rotate my own tires and need to reset the TPMS. It worked the first time right after I received it, Now a little over a month (return widow) I tried to use it again on a 2nd vehicle, and nothing. It was a new Duracell battery but I replaced it with another brand new one just to be sure, still nothing. Just for testing went back to the first vehicle that it had previously worked on and it won't work there now either. Cheaply made, and apparently a 1 time use tool.