Brake Noise
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Most noises caused by the front or rear brakes are rotational and occur once every wheel revolution. During a road test, duplicate the conditions under which the noise is most pronounced and gently apply the brakes. If the noise immediately appears or disappears when lightly depressing the brake pedal, the noise may be caused by an out of round brake rotor or drum. For brake diagnosis and repair procedures, refer to Brakes.