Second time this winter I started getting low tire pressure warning. The suggested PSI on the door panel says 30PSI for cold tires..... I went to a shop and they guy pumped it to 36PSIs each saying that normal for this type of tire (I still have the originals I got on my H3 in 2005, no adventure pckg). Should I be alarmed ?

 

36 psi is not much really- look at your sidewalls, they should be rated for much more then that. Tire shops usually over inflate the tires because harder tires get better gas mileage. Watch your speed in the snow and ice though as harder tires don't grip as well as softer tires do.

 

I assume you mean the side wall of the tire itself correct ? I will check that out when I get out from work.

 

My tire monitors were driving me nuts with low pressure messages and it turned out to be a bad sensor that the dealer replaced.

 

Ours was giving me that message too! Drove it off the lot from the dealer, got it home, looked at the sticker inside the driver's door jam. Tells me to inflate my 285's mounted on the truck to 35 PSI, and the spare to 50 PSI. Reading the manual told me the spare is monitored too! So I checked them all. 2 were low, 1 was over 35, and the spare was below 30. Pumped them all up properly, and no more problems/messages.
Make sure you properly inflate the spare too!

 

Is your spare monitored???
Mine isn't.

 

I think the spare has a monitor in it, but as it sits in the rack in the back, it is not being monitored.

 

My 06 H3 gives me the low tire pressure every cold morning (<40deg). But not every morning. My spare tire is also flat due to road debri. So I'm thinking it can't be included otherwise I'd get the LTP every time I started the car, right? I'm going to have my dealer look at it as soon as I find a whole day to make the 2hr drive to my dealer. Hopefully they can replace the senors since they have previously re-inflated and reset the senors to no avail.
JV

 

Guys, I have found that having a vehicle "loaded" up can trigger the TPMS too...case in point, when I moved, I had alot of stuff packed into my Mustang and it set the TPMS off due to the weight and teh fact that i was only about 1lb above the warnign threshold...