I think the only real way you can get to the bottom of this is to hire an "independent" law firm to investigate if someone is tampering with your tires.

-Signed, a still-bitter Patriots fan.

P.S. Just throw some air in them and monitor. Sometimes just them warming up on the drive to the gas station will bump them back up over the TPMS threshold. Can't speak to the Nitrogen truther talk above.

 

When I used to leave in a "colder" State one day I drove to work just fine but when I try to leave work one tire was flat the temperature was around -20F. Glad I was working on a car factory so I had people to fill my tire with air and I was on my way home. I never had an issue with that tire on warm days. So now if I see the light comes on I do not really care until the temperature is above 32F and the ground temperature is also above 32F.

 

So you purposely run your tires under inflated when it's cold out?

 

I usually check my car (including my tires) once a week everything and I mean everything from break lights (kids help here pressing the pedal) to windshield washer fluids.

 

hahaha!!