The TPMS on my Frontier always comes on when outside temperature is less then 40 degrees F. Once on it does not go off until the temp rises above 40 degrees. Since I live in Virginia this light is on for more than half the year. I actually had a flat while parked and thank goodness someone told me before I drove off. So this light is of no use.
The TPMS sensors use batterys cold effects them more as they age out... 60 months is the average life.
The TPMS light has been on since shortly after purchasing the truck about 24 months ago. Your answer is unsatisfactory and doesn't me one bit.
Reluctantly answered: air changes in volume with temperature; colder air is actually smaller than warm. That's why your pressure drops with cold weather. When it gets cold, check/fill air to proper pressure and reset the TPMS to turn off the light. In the spring when warmer, do this procedure again..... I agree; the TPMS is one of the most ridiculous features the idiots in government have ever made a requirement on cars.
Ed wins the physics prize!
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