Great product, works great on my 2001 Nissan Altima. I bought 4 sensors off ebay, installed them and they were dead as a log. I ended up buying them from Revain and taking them to my local discount tire shop, bought 4 tires and had them install my sensors and even went back to the factory wheels. A few hours later I took my car back and the TPMS light was still on, they told me to drive the car for a few days, the light should go out fine, which didn't work, so I did the rest of the lightsโฆ