Air Pressure light came on

[desiguyinnc]

Hey guys, I have almost 9000 miles on my 2012 Civic and the air pressure light came on. I went to the local gas station and inflated the tires to about 3.5 psi in each tire but the light still hasn't gone away. I don't want to over inflate my tires, should I take it to the dealer or try to put more air in them?

 

[webby]

The light won't go out immediately. You'll need to drive a bit for the light to reset. I can't tell you how many miles till it goes off, because it seems like it's never the same.... but the answer is to just drive. The sensor will reset, and the light will go out if you have the tires all to the proper PSI. I had one that stayed on for a few days, but I was only driving like 2 mile trips and parking it. No need to worry

 

[desiguyinnc]

oh no wonder, thanks for the tip webby!

 

[wanga]

I do agree, it's pretty random, the Accord would sometimes take 30 minutes / 15 miles before the light went off, sometimes it would be almost instant.
If it doesn't go away, double check the pressure again, and maybe take it to your dealership, it's possible you may have a faulty sensor.

 

[webby]

that is true ^ . If your light doesn't reset after a decent drive, take it to honda. They can see if your sensor is actually bad.

 

[ivanfb6]

It happened to me with 1500 miles on my si 2012, took it to the dealership, got my tires inflated again and that was the end of the light issues.

 

[webby]

As the temperatures drop, more and more people are going to see this light come on. Cold weather makes air contract - dropping the tire pressure.

 

[retracnaes]

yup...had the same thing happen on a cold morning a few weeks ago. put in air, light stayed on and I was like wtf...restarted the car twice, still on...said f it and started driving, went out shortly after I started rolling...kinda strange set up

 

[Freddiii]

Mine turns off as soon as the desired pressure is reached.

 

[webby]

The tpms turns off as you're putting air in? From other threads and posts, the battery in the tpms sensor needs to be in motion to turn on and broadcast the psi reading. This is why you have to drive around a bit to get the warning light to disappear.

 

[webby]

http://9thcivic.com/forum/threads/tpms-sensor-meltdown.4042/page-2#post-59139
A few posts around here - users trying to defeat tpms in winter wheels.

 

[Freddiii]

Yep while I put the air in. That's how I know to stop.

 

[webby]

You totally need to be checking the air pressure with a pressure gauge - go pick one up if you don't have one? I actually know someone who was killed by a tire that exploded while it was filling with air. From everything I've read, the tire needs to be moving to get the tpms light to go out. Better safe than having some type of accident. Plus, all of your tires will be at equal pressure with the gauge.

The tpms light comes on:

Readings are provided by pressure sensing transmitters mounted inside each tire and sent to a central computer (ECU) for display on the dashboard. A warning indicator light on the instrument panel and an audible warning notify the driver if a 25% drop in pressure occurs.

so, your tires could all be somewhat uneven... in the realm of properly inflated, to less than 25% low - to not kick the tpms light on.

 

[Freddiii]

Well so far it's only happened on a tire that has an issue, nail in it or sum thing. The air is a quick fix til it goes to the shop. I've never had a pressure gauge usually just eyeball it...

 

[webby]

You can get one for like 6 dollars or something. Keeping the tires even will help the way the car travels down the road & your tire wear even.

 

[Freddiii]

K.