indicator light on 2005 Volkswagen Passat

what does it mean when a light comes on that has a car on it with a bolt?

Asked by for the 2005 Volkswagen Passat
Hi, it means your gas cap isn't on tight enough (usually). You can take it into any AutoZone or Checker and they will check the code for free. Usually, what I found, was that the gas cap needed to be put on tighter. It needs to be turned continuously until it clicks several times. And if you do it right now and the light doesn't go off, just let the car sit for awhile so it can reprogram itself.