This item was fitted by a local tire dealer. I drove hundreds of miles but the sensor light wouldn't go out. The tire shop says it's dead. Worst of all we didn't save the old one so we can't send it back as the cost keeps going up. I hate these things, even though they can save gas and such anywhere in the world. It would be nice if they could just be knocked out and taken care of, but that doesn't seem to be the case.