My tpms light has come on now for the second time in a week.
Last time I checked air pressure and all were at 33 except for 1 tire which was at 32. Aired it up and the light stayed on but eventually went off.
Well, it is back on again. All pressure is fine. I'm thinking the cold mornings are tripping it, but shouldn't it go off after the tire warms up and the air expands?

 

I had the same problem. I just filled them all up to about 36psi and the light has remained off. Climate makes a difference to.

 

33 is around the min you want to run, thats y they come on at 32,

i run 50 in my sport tires

 

50!! thats the max.

 

yaa, try it. its with in spec, ur MPGs will go up by about 3-5.

you will be able to whip the *** end around a lil more too

 

According to the shop manual for the '08 sedan, the TPMS comes on @ 26 pounds.

"Low tire pressure warning lamp indication
NOTE: Standard air pressure is for 230 kPa (2.3 kg/cm2, 33 psi) vehicles.
TIRE PRESSURE WARNING CHECK SWITCH
The following item can be checked by grounding the tire pressure
warning check switch (1) harness connector terminal.
• The low tire pressure warning lamp in the combination meter will
blinks according to the self-diagnostic results.

Condition Low tire pressure warning lamp
Less than 182.7 kPa (1.9 kg/cm2, 26 psi) [NOTE] ON
Low tire pressure warning system malfunction
[Other diagnostic item] Warning lamp blinks 1 min, then turns ON."


I have an intermittent problem with my TPMS and I first thought it was my new Cell Phone. The problem started again Sunday nite and Monday morning, when I knew the tires were cold, I started the engine and the lite flashed for 1 min. then came on steady (as before). To clear it I just checked the air pressure in all 4 tires and the problem went away.

Rich Dunklee

 

Hey! go with 34psi

 

Actually the door sticker says to run them at 33psi, so that is what I run them at.
MPG on my car is well over 21mpg hand calculated and it's every fill just like clockwork, if I could get it higher I would, but from what I've read, most people are hard pressed to get 18mpg.

I'm actually going to have to take the car back into the shop, as it was 80* out yesterday and my temperature was saying 34* and ICY. My low tire pressure light is on, and the cars a rattle trap.

I'm pretty disapointed with build quality of this car, in fact I traded in an 03 toyota camry loaded to the gills that had 90k on the odometer and not 1 single visit to the dealer for a warranty problem, or repair. Seems like I took a step backwards.

 

I have a g37, and I have been having the same issues with my TPMS coming on, but all the tires have 32+ psi, I do seem to notice it has only been coming on, on cooler days, where the previous day was 15-20 degree's hotter...

 

run 35 psi. thats what i set every car i work on at and odn't have an issue.

there is no set pressure that will click off the light there is a percentage it works off of from the bcm to see how much lower 1 tire is than another. although data read error codes will be set if you run 50 or more, NOT a good idea

 

I'd imagine something would have to give if you hit a pothole w/ your psi maxed out, I'm not that much of a gambler
35psi for me

 

50!!! Ouch
Tires Need Some Love and Care Too!

 

mine came on about 3 times a week for a month and right when i was about to get the tire replaced...it was fine