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Make sure the gas cap is tightened real good because it will make the light come on. Also look for and cracks in the seal for the cap. If that all looks good run it by any parts store like Autozone and they will connect a code reader for free and tell you the code that gets stored in the computer and you might be able to fix it right there and not have to take it to a shop!
That code has to do with the turbo and sometimes a vane will stick for a moment and set the code. Being its running ok thats most likely what happened otherwise you would for sure notice a power loss. I would have the code cleared and if the light comes back on and sets that code again the dealer will need to inspect the turbo.