so i was driving tonight at 3 am and suddenly i hear a BEEEEEEEEEEEEEEEEEP and on the digital display, it showed my tire pressure i suppse....it read F:28,28 and the psi icon was blinking.

and on the dash, a little symbol appeared with arrows pointing at each other. i was wondering what that is supposed to mean?

the temp dropped to 52 degrees and i left the car out for about 4 hrs. so maybe it has something to do with that ? i dunno.

just wonderin what i should do now? thanks

 

Put some air in your front tires...the light will go away.

 

how did the air go away in the first placE?

 

The colder the tire, the less pressure. Lo pros are picky. Fill your tires at 35 cold. You'll be OK. Everybody goes through this.

 

physics.

low temperature = low pressure
high temperature = high pressure

 

It happened to me too. I just added some air and the light and the beep and the blinking pressure monitor all stopped. At first I thought it was another way nissan has to get you into the service department and spend some money to get it off. Thank God it wasn't.

calvin

 

In the first day with my Track model, I aired tires to 35 psi but got beeped at all the time. Turned out my gauge was bad and they had 27 psi in them! Pretty bad when your car tells you your tire gauge is bad! And is was a high-quality gauge, too...

 

Just a quick question for those reading this post. I've only had my car for 4-5 months and this beeping psi thing has happened twice already. Everytime its happened, i fill the tires to about 34 psi in cold weather and then after driving a few miles, it will heat up to about 36 psi max. But lo and behold, about 2 months later, the psi in cold weather will eventually get to about 29 psi and the beep comes back. Just wondering if this was a natural thing for tires to normally lose about 1psi/week. I live in California where the weather rarely drops below 50 degrees, so I dont think the cold weather is a factor.

 

How does that tire pressure thingy work anyway? Is there some sort of radio transmitter inside of each rim or what?

 

will the beeping thing go away if my tires go back up to 31/30?

which they did.

 

that beeping is ****ing annoying. i just say shut up *****, which does nothing to stop it. i waited until my next oil change for the dealership to fill the tires because i'm too lazy

 

Yes and No. It's natural for the tires to loose pressure over time, at what rate, I could not tell you, but yes loosing pressure over time just from diffusion is normal.

 

Holy ***** ICEPIG, that was hilarious!!!

 

ROFL...great post, very productive, heehee.

 

It's just the cold! I had it happen last week, 19 degrees. Gave me a bit of a heart attack. Till I realised the PSI was down to 28. As soon as I had it put to 35, the general opinion best PSI cold, it went away. Light and that awful busser! Watch the bump and holes in the cold with the low pro tires! Drive careful!

 

Other than a visual inspection I've never paid much attention to tire pressure. At the cost of tires for the Zzzz I'm real happy to have the sensors. I had no idea temp. made that much difference in pressure.

By the way, I live in Sacto., Cali where temps do not get that cold. Still, a drop of 10 degrees or so lowers the pressure.

 

The pressure warning saved me a big headache two weeks ago as I started out on a trip out west. I had new tires put on the day before. We're 5 miles from home and the warning sounds, I stopped and yes the pressure is down to 19. I filled the tire twice in order to make it to a local station that could fix a tire. Just made it since the air was gushing out. The nut that holds the valve stem wasn't tight and it was leaking there. Now I'm very thankful for that beeping!


I do have another observation. The instructions say 35 lbs cold but I can't find what ambiant tempature is considered cold. Fill them at 70 degrees and you'll have about 30-31 lbs on a 45 degree morning. By afternoon the pressure after 30 miles of highway driving it can be back to 38-40 lbs. There really is no clear cut inflation pressure without allowing for tempature. My problem is that it's a pain to predict what the conditions will be.