Check Emissions System Light

Hey Guys,

Got my very first Acura last week.2010 RDX SH-Awd.
So far I love everything about it!

So my wife filled up gas in the morning. It says on the cap to tighten till it clicks so she did just that. As soon as she heard a click she stopped tightening. We drove around the whole day and towards the end of the day the Check Emission System light came on. Any ideas on what the problem could be? Do these cars have a history of faulty had caps?

Thanks for the help in advance!