Rev Up for the 2026 ASE Brakes Certification – Master the Test and Shift Gears to Success!

A persistent grinding noise when braking is a clear indication that brake pads may need to be replaced. This noise typically occurs when the friction material on the brake pads has worn down to the metal backing plate. Consequently, the metal makes contact with the rotors, which can lead to damage to the rotors if the pads are not replaced promptly.

Focusing on this grinding sound allows for immediate action, preventing further damage to the braking system and ensuring driver safety. This symptom is one of the most recognizable signs of excess wear on brake pads, making it critical for vehicle maintenance. Recognizing and addressing this issue promptly can help in avoiding more significant repair costs down the line due to rotor damage.

The other indications, while they can signal various automotive issues, are not direct or exclusive indicators of brake pad wear. For example, decreased fuel efficiency could be caused by multiple factors unrelated to the braking system, increased engine temperature usually points to issues within the engine, and unusual tire wear may relate to alignment or suspension issues rather than the condition of the brake pads themselves. Each of these can affect overall vehicle performance, but they do not specifically highlight the need for brake pad replacement as effectively as the grinding noise does.