My 2012 Honda Civic

Anonymous
Recently my “Tighten Up Fuel Cap” warning light came on the dashboard - I have tightened up my gasoline cap multiple times - and it still is on??

Has something similar happened to your car?
What did you do?

Could this mean something else is wrong w/my vehicle?
Anonymous
My 2009 accord does the same thing but it goes away after a few miles. Nothing wrong. It even passes the emission test for years so I wouldn’t worry about it.
Anonymous
Anonymous wrote:Recently my “Tighten Up Fuel Cap” warning light came on the dashboard - I have tightened up my gasoline cap multiple times - and it still is on??

Has something similar happened to your car?
What did you do?

Could this mean something else is wrong w/my vehicle?

Sounds like an EVAP leak. Take a look at the inside of your gas cap. Is the gasket cracked or otherwise decaying?
Anonymous
Re-tighten your gas cap making sure you hear at least three deliberate clicks.

Your car then needs to go through several “drive cycles” where it checks the gas system on its own. Drive cycles are the not the easiest to do on your own but eventually the gas cap error message should go away. This could take up to two weeks depending on how much you drive.
Anonymous
Go buy a replacement cap. That’s the cheapest quickest thing to do right now.
Anonymous
Anonymous wrote:Go buy a replacement cap. That’s the cheapest quickest thing to do right now.


+1 I would buy an OEM one.
Anonymous
If you do get new gas cap, car still needs to go through drive cycles.
Anonymous
Thank you everyone!

- OP
Anonymous
Have light reset after you have done what others have suggested
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