Small Evap system leak. First step would be to remove the gas cap and re-tighten, make sure it clicks a few times. If the light doesn't go off after a few days more testing needs to be down. It could be anything from a cracked hose to a rusted filler neck, can be hard for a DIYer to find.
The 2013 Hyundai Elantra-GT has 16 valves.
The 2014 Hyundai Elantra-GT has 16 valves.
The 2014 Hyundai Elantra-GT has a 6-speed manual.
The 2013 Hyundai Elantra-GT has an inline 4 engine.
The 2014 Hyundai Elantra-GT is a gas-powered vehicle.
The 2013 Hyundai Elantra-GT is a gas-powered vehicle.
The 2014 Hyundai Elantra-GT has an inline 4 engine.
The 2013 Hyundai Elantra-GT has a 6-speed manual.
The 2013 Hyundai Elantra-GT is 14 ft. 1.3 in. (169.3 in.) long.
The 2013 Hyundai Elantra-GT has double overhead cam (DOHC).
The height of the 2014 Hyundai Elantra-GT is 4 ft. 9.9 in. (57.9 in.).
The 2014 Hyundai Elantra-GT runs on regular unleaded.