Tire Pressure Warning On, Pressures Are Unchanged

[BrianDevin]

simply put in the title, I had my tire pressure light come on almost a month ago, all my pressures were the same as the label suggests they should be, so I figured I'd wait it out and check again later, still all the same. The light is still on, and they are all the same.
Is there something I'm missing or did a sensor fail

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[racer]

And you recalibrated the system in the interim?

 

[BrianDevin]

And you recalibrated the system in the interim?

I have and it still dings that something is under pressure

 

[racer]

Bummer. I had a similar issue that lasted just a couple days, but then the system kinda sorted itself out. I had to recalibrate several times. I also manually checked pressures to make sure the tires weren't going flat (having had two punctures in 18 months, a puncture or slow leak was certainly a possibility for me). IIRC, the system on these cars is "ABS" based.. not a monitor on each valve stem.

 

[SiGeddy]

simply put in the title, I had my tire pressure light come on almost a month ago, all my pressures were the same as the label suggests they should be, so I figured I'd wait it out and check again later, still all the same. The light is still on, and they are all the same.
Is there something I'm missing or did a sensor fail

Happened to me for over a month and figured it was from the cooler weather.. I ended up finding a fatass nail in my tire. Never lost tire pressure with it, so maybe it that could be why?

 

[Yoda]

Inspect you tires for nails.
Get an accurate tire gauge.
If one tire was abnormally low, it may have a problem.
Rim leaks are more common with aluminum wheels.
Before the first drive of the day, inflate all the tires to the same pressure.
Start the car and hold the TPMS button until the TPMS warning light flashes.
If the TPMS was on, it may take a few minutes of driving to sort itself out.

 

[jc5810]

Bummer. I had a similar issue that lasted just a couple days, but then the system kinda sorted itself out. I had to recalibrate several times. I also manually checked pressures to make sure the tires weren't going flat (having had two punctures in 18 months, a puncture or slow leak was certainly a possibility for me). IIRC, the system on these cars is "ABS" based.. not a monitor on each valve stem.

Honda uses "indirect" TPMS which monitors wheel speed. A lower-pressure wheel will spin faster (smaller diameter). Video from Honda:

 

[RonSwanson's]

simply put in the title, I had my tire pressure light come on almost a month ago, all my pressures were the same as the label suggests they should be, so I figured I'd wait it out and check again later, still all the same. The light is still on, and they are all the same.
Is there something I'm missing or did a sensor fail

Mine did this, and the service guy said to reset it 3 times in a row, or "re calibrate 3 times" and if it comes on again to bring it back, after he did that, it came on again I did the 3x calibrate and it went away for good, so might wanna try that a few times.

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