newb - I woul dtake it into your dealer to have them have a look. It is under warranty after all! If I had to guess, it sounds like one of the sliding pins in your calipers needs some lubrication. It is not a fatal condition but can cause premature pad wear and excess heat which can cause caliper warping. Mind you - I am guessing from your limited description of the issue. Just bring it in to have them take a look and potentially avoid a larger problem.
Good luck,
Jeff
Good luck,
Jeff
