TPM sensor

[H3 HUMMER 11]

Hi, whenever it rains, The TPM says the the tire low. When it stops raining, i never get the message. On a sunny day, i also never get the message. Have you seen this on your H3?

[f5fstop]

Can you duplicate it by hosing down the tires with a lot of water?
No, I have not ever heard of this one.

[RubHer Yellow Ducky]

When it rains the ambient temp drops, therefore lowing the temp of the tires. Lower temp causes the pressure in the tire to drop setting off the monitor.

Increase your cold air pressure in the tires and the problem should be solved.

Mine have a max pressure of 44 and I normally run 38 to 40 cold

First check that your tires are at recommended pressure when cold (see sticker on drivers door). Should be no need to overinflate.

[f5fstop]

Originally Posted by Steve - SanJose

First check that your tires are at recommended pressure when cold (see sticker on drivers door). Should be no need to overinflate.

[RubHer Yellow Ducky]

Originally Posted by f5fstop

I don't overinflate...Max psi is 44..........

Originally Posted by RubHer Yellow Ducky

I don't overinflate...Max psi is 44..........

Max pressure is not recommended pressure or optimum pressure.

[f5fstop]

Originally Posted by Steve - SanJose

Max pressure is not recommended pressure or optimum pressure.

Max pressure is the Maximum ALLOWABLE pressure for that tire. If you were running fully loaded to the max weight allowable, then it would not hurt to add air up to the max. However, for normal driving, max pressure will degrade the tire faster and cause it to wear in the middle (lower pressure than recommended will cause the tire to wear on the outsides faster).
The recommended COLD pressure is obtained by testing by the vehicle manufacturer, in this case GM, at the Proving grounds, along with a Tire rep (Bridgeston or Goodyear in the case of the H3). the recommended pressures allow for an even wear across the tire (alignment allowable), and for the best ride for comfort and fuel mileage.
You will not necessarily damage a tire with max pressures, but it will wear a lot faster due to the center wear pattern.
35 psi is the recommended COLD pressure for the Bridgestones.

[H3 HUMMER 11]

Hi,

Thanks for all the response. I aired up the tire to recommended pressure and the light hasn't gone off yet.

[Hmmm2]

Originally Posted by f5fstop

Max pressure is the Maximum ALLOWABLE pressure for that tire. If you were running fully loaded to the max weight allowable, then it would not hurt to add air up to the max. However, for normal driving, max pressure will degrade the tire faster and cause it to wear in the middle (lower pressure than recommended will cause the tire to wear on the outsides faster).
The recommended COLD pressure is obtained by testing by the vehicle manufacturer, in this case GM, at the Proving grounds, along with a Tire rep (Bridgeston or Goodyear in the case of the H3). the recommended pressures allow for an even wear across the tire (alignment allowable), and for the best ride for comfort and fuel mileage.
You will not necessarily damage a tire with max pressures, but it will wear a lot faster due to the center wear pattern.
35 psi is the recommended COLD pressure for the Bridgestones.

Wow, you're good!

[Ed Coryell]

Originally Posted by H3 HUMMER 11

Hi, whenever it rains, The TPM says the the tire low. When it stops raining, i never get the message. On a sunny day, i also never get the message. Have you seen this on your H3?

My TPM light kept coming on, even after I checked the pressure and all tires were OK. I later found a screw imbedded in one of the tires. Had it removed and had the tire patched from the inside. The light hasn't come on since.