What is a common indicator that brake pads need replacing?

Squealing or grinding noise during braking is a hallmark sign that brake pads need replacing. When the brake pads wear down, they can reach a point where the material that was once providing friction has diminished, exposing a metal backing. This exposed metal can create a grinding noise when it contacts the brake rotor. Additionally, many brake pads are designed with built-in wear indicators that produce a high-pitched squeal when they are nearing the end of their usable life. This audible warning system serves as an important safety feature, alerting the driver to the need for maintenance before further damage occurs to the braking system. Regular monitoring for such sounds is essential for vehicle safety and performance.