Also, you might look at the valve stem it might be leaking. I got new rear tires last year and the next mourning the left rear was very low. I did not notice and got on the interstate, running 80 mph something felt wrong and I pulled over, the tire was already ruined! The shop replaced for free, they stated the valve slim would not seat because of corrosion. You might air up the tire and put some soapy water in the stim with the cap off. My TPMS has been on since I got the car two years ago, I just check the air pressure every Sunday when I wash the car.