Car brakes will often squeal when they are hot or under pressure. Mountain driving can often lead to squealing brakes. High-performance carbon-metallic brake pads are prone to squealing. All brakes will squeal from time to time.

How long does it take for brakes to squeak?

After some wear, sometimes referred to as a “bedding process,” that brake pad squeak will go away. If after a reasonable period of time, the noise does not go away, it's best to discuss your situation with a certified brake mechanic.

Why do my brakes squeak if my pads are still good?

As mentioned above, ceramic or metallic pads or moisture can cause pads to squeak. This type of squeaking is usually harmless, says Popular Mechanics. But new brake pads can also squeak because of a foreign object, explains Bockman's Auto Care. Twigs, pinecones or rocks may get stuck between the brake pad and rotor.