Looks like a timing mark to me...... @josh16 .
I'm quite sure it's supposed to be there. I have no idea if the timing can or ought to be adjusted on these new cars but back in the day, you could change the timing on your engine to improve performance. you had to use a timing light. the mark represents what is called top dead center or TDC. there should be a gauge, an arrow or some kind of stationary marker on the engine, when these two marks are lined up, your number 1 piston is all the way up to the top of the stroke. the exhaust valve has just closed and the intake valve is starting to open. At least that's how it used to work.
Now days, it's probably more a mark to allow you to know when you are at TDC for maintenance. the pulley can only go in one way. the keyway ensures the pulley, the crank and all the mechanicals of the motor are aligned. there is a front and back to the pulley but that should not be too difficult to identify.
Hope that helps.