try getting nitrogen in the tires, it fixed my problem

 

Nitrogen makes sense. Doesnt expand and contract with air temperatures. I guess it could be a problem if you were constantly airing down and up but I can see the positives out weighing the negatives.

 

Unless you're driving an F1 race car, nitrogen is equivalent to "snake oil".

There is a procedure on this site that explains what you need to do to reset the TPM system yourself. You flick the headlight switch, and then let air out of each tire in a specific order, and the system is reset. If you can't find it, I'll post it later.

But the root cause is, either you have one or more sensors needing replacement (they are battery driven, but the batteries can not be changed, you have to change the sensor itself) or you're low on air. It is plausible that the cold weather reduced your tire pressure. You should check your tire pressure regularly regardless of what the TPM system says.

Phil

 

Funny, been driving me nuts for about a month and a half now too. I got new tires put on a few months back and they changed all the TPM's so I assumed it was a bad one, but i guess most likely from the cold temps. Thanks

 

Yea, seems to come on only in early morning when real cold.Checked all pressure today,added some in front left,ill monitor a day before returning to dealer for fourth time.

 

Question If I get new rims and tires and I dont get tpm's installed what problems would i run into?

 

temp changes mess with the sensors constantly for all gm vehicles. sensors are fine, just finicky...

 

ive had 2 diff h3 thru 2 winters below zero, hot summers.
so far i had ONE tp warning, on a nice day, when i had a slow leak. got it fixed,warning went out.

never again, they seem to work flawlessly. batt? 7-10 yrs?

 

You guys with all the "problems", what is your tire PSI?

Set them all at exactly 38 cold.

BTW the spare is not monitored, an H3 can only monitor 4 sensors, so unless you have a spare that was one of the original 4 on the ground, it is out of the loop.

 

spare does read on 06 modles anything 07+ has no sensor in spare