Not sure if this is normal, but often times when I release the brake from a complete stop, especially from downhill positions, I hear a pretty obvious although short grinding noise right as it is released. Not sure how long it's been happening, but it got a little annoying today while I was stuck in the traffic on a downhill slope having to stop and go multiple times. Ever since it annoyed me once it has become more noticeable.. (amazing how our genius brain works). Have you guys have had this issue before? Is it worth bringing to the service center for a look?