I've already had two warnings from this system. Now that the cold weather has set in, it seems whenever a tire goes below about 30psi, the system flags it, and it won't reset until you put air in. Now the tires are back up to about 33-34 (all of them). How much air do I have to put in (max is 36) to get this thing to stop, and how often is this going to be a problem as it gets even colder? I had TPMS on my last car and I think I only had to add air once in about 4 years.

 

I never had this issue but I was afraid I would so to avoid the rush, I put Nitrogen in them... I got it done for free but even had I paid the 18.00 one time charge I believe it would have been worth it!

 

the system in my dads truck goes off whenever the temperature swings down, but he runs tires low on the scale of acceptable pressures (32-33psi), my moms car w/ the system(we run her pressure almost dead center of the range) does it too, idk how your old car didnt unless you ran near the high end of the acceptable range, but im glad that this is one system that i dont have on my truck

 

The manual states it may take up to 20 minutes of driving after inflating for the warning light to go off.

 

Surely, everyone has their own method.

Before our first cold front, I aired the tires up to 40 psi. This keeps them from dropping below 35 psi.

If I'm going to be off by 5 psi, I want to be on the high side (not the low side).

If you are 5 psi high:
-your ride may be ever so slightly rougher
-you're gas mileage won't really be affected
-it will handle decent

If you are 5 psi low:
-your ride will be softer
-your gas mileage will decrease
-it will not handle nearly as well as it should (remember all the Ford Explorers that were rolling over from under-inflated tires?)

 

its really a shame that people are so lazy that they cant be bothered to check their tire pressure on their own, i dont need the dashboard to tell me to keep an eye on it i do it every time i get gas, TPMS is not something that needed to be mandated by the government IMO

 

TPMS or no TPMS I do a monthly check on all my vehicle tires as well as follow the schedule for tire rotation/balancing....goes a long way in making your tires last!!!

 

I just think this particular system is overly sensitive. Today (ambient temp about 60) I raised each tire to 36psi (I think that's the max cold pressure). I originally had 2 tires blinking on the display. When I started the car the one tire stopped blinking immediately, and the second only took about 5 minutes of driving to cease. That's a lot faster than even the last time I put air in.

 

i agree, regular scheduled maintance will make everything last longer

 

Filling with nitrogen over winter works. I live in Switzerland and have both low temperatures and altitude changes. Nitrogen leaks less, and is less likely to change pressure as dramatically as the air only fill.

Just my 2cts worth.