Is the tire pressure sensor on the G35 really sensitive? Mine goes on during long drives and I've noticed it happens when there's a significant change in the temperature. I've driven from San Diego to Arizona, with temp changes from low 70s, high 60s (higher altitude) and back down to low 80s. But when I go out to check the actual tire pressure, everything is within range.

 

I think it's set to go off at around 28PSI but it's not uncommon around here that people are experiencing the TPMS going off on long drives and signifcant temp. changes. Dont worry about it, its happened to plenty of people.
-GP-

 

Thanks for the help

 

My pressure sensor goes off as soon as i get just below 29psi. Remember your psi will be a little different between a cold tire (sitting) and a warm tire (driving). I typically keep mine at 32 psi (warm).

 

I'd say your pressure is a bit low.....that really isn't a significant temperature change. It's varied from 60 degrees to 15 degrees here in the northeast this winter (weird weather this season) and my TPS light doesn't come on. Keep in mind 10 degrees changes the pressure in your tire by about 1.0 PSI.

 

why did you qoute my post? i dont run my pressure at 28 psi, i was saying that's what the sensor is set to go off at. I keep mine at 36psi cold.
-GP-

 

yep 35-40 for us cats running 19s and 18s.

 

I know you don't run yours @ 28psi...and I'm guessing w/ yours @ 36, your TPS's don't go off (light doesn't turn on). I was just telling her she's probably running a bit low, and quoted you because you said it's not uncommon. I haven't heard that being common..that's all. Cool?

 

if it goes on on long drives, it probably needs a dealer reset, your temp should be going up in the tires the more you drive

 

mine goes on sometimes during this cold weather, i dunno.. ohwell

 

that is what I thought also....but not true according to the dealer. My 05X light goes off every time we drove more than an hour in the car this winter. It didnt seem to happen at all when we first got the car last summer - just in the winter. I stopped to check the pressure immediately each time, all normal around 34 psi. Dealer said it is very common on the G's on long drives.