Okay, I've got a 2007 SC with 35k miles. When I turn left going more than 10 mph I hear a grinding noise from the left wheel area. I had it in the shop today to do the 30k service and asked them to check it out. The stealer states it's rust build up on the rotors that is causing rubbing when I turn. Does this sound plausible? Just don't want to have something break on me after the warranty wears out. Thanks for your help.