What sound typically indicates worn brake pads?

A high-pitched squeal is commonly associated with worn brake pads. This sound is often produced by a small metal "wear indicator" tab that is designed to make noise when the brake pads have worn down to a certain level. The purpose of this feature is to alert the driver that it's time to replace the brake pads before they wear down to the point where they might damage the rotors.

When brake pads reach the end of their lifespan, they may allow this wear indicator to come into contact with the brake rotor, producing that characteristic squealing noise. This serves as an important auditory warning that helps maintain safety and prevents further damage to the braking system.

In contrast, other noises such as low rumbles or grinding sounds often indicate different issues, like problems with the rotors or potential debris caught in the brake assembly. A clicking noise may relate to components that are loose or not properly assembled. Understanding the sounds your brake system makes can aid in timely maintenance and prevent significant repair costs down the line.