Has anyone gotten a random check fuel cap message on the information display? I got it today half-way through the day, randomly. The Honda Flip Guide advises to remove and reinstall the cap with at least one twist (which I did) and then to hold the Sel/Reset button until the message goes away. I held the button down, but to no avail, the message remained.

Oh, and the car did not throw a MIL. If it persists over the next day or two, I will take it to the dealer.

Alabaster Silver HcH

The manual says on page 229 that it may take several days for the warning light to go out.

Ah. I had not read the thick manual yet. I was intending to do that this evening. We'll see how it goes.

Alabaster Silver HcH

This happened to me today.
I noticed it about half a mile after starting the car.

I did NOT just fill up; in fact, there are about 200 miles on this tank.
My cap was NOT loose; I always turn it so it clicks several times.
The metal body cover over the cap was not opened either.
It was a little hotter than usual this afternoon when I started the car (about 74 degrees.)
Why this happened is a mystery to me.

I stopped the car a half mile later as soon as I could safely pull over and took the key out of the ignition.
I took off and retightened the cap.
When I started the car the "Tighten Fuel Cap" message was still flashing.
I drove home with it flashing and read this thread, checked my manual, then went out and started my car again and the problem was gone.
I never needed to hold down the reset button.

Hmmmmm.
Strange.

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.

It took a few days for it to go away. Even after re-adjusting the cap and holding the reset button.

Alabaster Silver HcH

I'm going on one week with over 350 miles and it still hasn't gone away. I've tried removing the cap and re-installing with three to four clicks. Still no change. I'm going to wait until I fill up again and see if that helps...

2005 Honda Odyssey EX-L RES & NAV - Desert Rock Metallic

2006 Honda Civic Hybrid NAV - Magnetic Pearl

2007 Toyota FJ Cruiser - Black Cherry (First Toyota, Third non-Honda)

I agree with you. Go with another tank of gas to see if it goes away. If it doesn't after a week of the new gas I'd contact the dealer. Maybe the cap is bad, or maybe there are other issues. Also, was the last place you filled where you normaly fill? Maybe you got some "bad gas" whatever that means

My hydroponics experiment

You ever notice how hard it is to lip read cartoon characters?
"Crazy is what the sane call Delta Flyer"

For the record I have put another 300 miles on this same tank and the warning has not come back.

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.

I had the same message a few days after taking delivery, I retightened the cap, worried for a bit, read the manual, and yes, in a few days it did disappear. Not sure what the cause was, but haven't had any reoccurance.

The system checks for gasoline vapors and if the cap wasn't closed tight, sometimes it comes up with a measurment. It's pretty common in all cars today.