There's a slight squeal when I turn my wheel left to right or vice versa when I'm parked. I can only hear it when I have the windows down.
Any ideas?

 

is it high pitched? a wine is normal but not a high pitched squeal. if its not loud enough to be heard inside i wouldn't worry about it, but if you find out that your steering is acting the slightest bit weird then that squealing is the problem. have the dealer check it out see what they say.