Welcome and congrats on the new car... i'm sure it's not fun to get a CEL so soon but it's probably something simple.
It's hard to say for whether this applies since you have not yet added your location to your profile, but in most states your local AutoZone/Kragen/etc car parts store will pull your CEL codes for free with their own shop scan tool. Write down the code(s) they tell you (the code will most likely start with the letter "P" and be followed by a 4-digit number) then come back and search for that code on here... you'll most likely find lots of info on its cause and hopefully on the solution.
Warning: if the yellow CEL light is blinking/flashing, that means there's a very serious problem and you should go directly to a dealer to get it fixed under warranty. Blinking CEL = multiple misfires, which is bad. If it's just lit up solid without blinking, don't worry about it too much, just get the code read and figure it out soonish.