TPMS Sensors When Cold?

[nquillen]

Does anyone else have issue with the TPMS when cold?

I rechecked the tire pressure and they are all at 38ish psi, but as long as it is cold the light stays on.

What pressure is the system supposed to alert you?

[Burrcold]

Sounds like you have a bad sensor. If all of your wheels are reading the same PSI, you shouldn't get a light (especially if you are anywhere in the 30's PSI range).

Are you sure your tire gauge is working properly?

[nquillen]

I'll try another gauge.

Would this be covered by warranty?

[Chinadian]

I have the symbol that looks like this for tire pressure blink for about a minute then stays on when i turn my car on (..!..). I read the manual it says something like if you are using non-scion tires then it will turn on. It started when i changed over to winter tires. I wonder if this is normal???? similar to people with the TPMS light when they change to winter tires.

Does anyone else have this problem?

[BigFatFlip]

I'm not sure, but I may have had a similar issue. I regularly check my tire pressures (usually when I fill-up since I use the gas station air compressor) and have had it at the recommended pressure (35 psi cold I believe). One morning, I actually had to park outside (had some junk in the garage, was too lazy to put them away) and it just so happens to be one of the colder nights. The next morning, my TPMS lights came on, but I figured that it was only because of the cold and that they would turn off as it warmed up. After a couple of days, they didn't turn off so I stopped by the gas station to check, got ~32 psi at all four tires, so I topped them back off to 35, but the TPMS sensors stayed on. It actually finally turned off the next morning. Not really sure what to make of that, haven't had to park outside nor have had cold nights, so

[Burrcold]

Originally Posted by Chinadian

I have the symbol that looks like this for tire pressure blink for about a minute then stays on when i turn my car on (..!..). I read the manual it says something like if you are using non-scion tires then it will turn on. It started when i changed over to winter tires. I wonder if this is normal???? similar to people with the TPMS light when they change to winter tires.

Does anyone else have this problem?

If you put winter tires on, and didn't add your TPMS sensors then you will set off the light.

[Flat Black VW]

Originally Posted by Burrcold

If you put winter tires on, and didn't add your TPMS sensors then you will set off the light.

This would also cause the light to always stay on and not turn off.

[Burrcold]

Originally Posted by Flat Black VW

This would also cause the light to always stay on and not turn off.

Not on short drives. It takes a longer trip to make the light come on.

[xjohnx]

Originally Posted by Flat Black VW

This would also cause the light to always stay on and not turn off.

Not the case. I don't have TPMS sensors in my wheels and i don't get the light until i've been driving 30-40 miles continually.

[SportInjected]

Mine came on when the temps here dropped below freezing, but went off as soon as it got warmer (upper 40's/50's).

[Flat Black VW]

Originally Posted by Burrcold

Not on short drives. It takes a longer trip to make the light come on.

Originally Posted by xjohnx

Not the case. I don't have TPMS sensors in my wheels and i don't get the light until i've been driving 30-40 miles continually.

What I meant was once its on it would not go back off.

[Mo707]

Yep happened to me. I let some air out and put more in. Then it want away. It was in the morning and probably one of the coldest days.

[xjohnx]

Originally Posted by Flat Black VW

What I meant was once its on it would not go back off.

Also not the case in my experience, mine seems to reset itself after being powered off for a couple hours (i.e., in the parking lot at work.)

[grgonium]

Cold temps affect tire pressure, which causes the light to go on. Once temp warms up, light should go off.