three times now (not in a row) I started the car and the TPMS light came on. the first time, i put air in the tire and it went away.

two other times, after my drive i'd start it back up to go home and.... no light. these events are weeks apart. 2/3 of the times it was colder (50's) weather.

should i check the air EVERY time it kicks on? or just if it stays on across trips?

 

wow,

the owners manual would give you some insight..

and you might check for leaks.

beers :beers:

 

but if it was trully low, wouldn't the light stay on and not go away?

 

when the tires are cold the PSI is lower, as you drive the car and the tires warm up the PSI rises

 

please read the owners manual.. and you do know that as tires warm up the tire pressure goes up?

you might want to do some reading.

beers

 

I have, I'll look over it again. I wouldn't want to overinflate cause its been getting hot here lately even though it gets pretty cold overnihgt