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Loose gas cap message appeared yesterday. Tightened gas gap, still seems a bit loose. 5-10 restarts later and still there. Should I just replace the gas cap? Something else?
If you have not done so, I would drive the car for a week or so to give the system plenty of time to reset. Another option and it's free, is to disconnect the neg' side of the battery for a couple of minutes. Be sure not to let the neg' terminal touch any metal. This procedure has it's issues such as loosing your personal settings; for example your programed radio stations. After you reconnect battery terminal, start and see if the light is off and stays off. Good Luck