A couple days ago i got into my car and i got the "check gas cap" on the display. so i did what it told me to and checked it. i unscrewed it and then screwed it back in but nothing changed. i've checked it out online and most people say it could either be as simple as the gas cap or the EVAP solenoid canister. i'm sure other people have had this problem so i figured i'd see what everyone else started off with.