Each tire has a sensor which they charge over $60 EACH to replace and they go bad and go off with hardly any under-inflation but in California all mechanics have to check tire inflation before you pick up your car and I never replaced mine, it's a ripoff. Get a tire pressure gauge. If it's really bad, like a flat, it's obvious.
It means you should get out of your car, and look at your tires to see if any of them look low...and out air in the one that looks low
It means your tire pressure is low and you should bring it into hoehn Honda and have them fix it
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