Stock tires losing air?
 

i got my FR-S on Jan , through out the months ive been losing air in my tires, the 1st month 3 of my tires were flat , 2nd month i had some air loss in 1 tire , and by this month i got another light telling me that my tires are flat , i checked if my tires had holes or anything stuck in them , nothing ...just wondering if anyone else got the same problem before i take it back to the dealership

Are they actually going flat, or is your tpms light just coming on? It may be that the air is contracting inside the tire when the temperature drops triggering the light to come on. This happens all the time, I work at discount tire co and when it's cold outside I have to do TONS of air checks and search for flat tires that aren't even leaking.

The guy at my dealer said that that's been happening to alot of Toyotas car. Your tire shrinks when it gets cold outside, so all you need to do is to fill up your tire with nitrogen air at your local gas station or at the dealer. The guy at the dealer filled up a couple extra psi for me so I didn't have to come back. (Cuz I live pretty far away)

the 1st time my 3 tires were flat , but the next 2 times was the tpms light that came on, i live in California , and the weather is just perfect right now !

Lol, then you want to talk to your dealer about that. My lights would always go on when it was cold. (I live in Chicago)

Adjust the air pressure in your cold tires to 35psi. If it's too much, let out some air. If not enough, pump some. Then go take a 10mile drive and see if the lights turn off. If it doesn't then take it to the dealer.

Could be the TPMS sensor nut might not being tighten down enough or too tight that would have crushed the rubber gasket. Should be (35 inch lbs) torque not foot lbs. This sounds crazy but spray some windex on the valve ( take cap off) and the nut around the valve and see if any bubbles show up.

What gauge are you using to fill up the air in your tires? It might not be accurate. It is not unreasonable for a tire to lose 1 to 2 psi per month.

[ame="http://www.youtube.com/watch?v=uaxQiQB4lyM"]Give these people air - YouTube[/ame]

All the nitrogen from Costco!

tighten your valve stem. I had one that was a little loose.

I bought my car last September and only two times have I had my tpms alert me.