How can you tell if your brake pads need replacing?

The correct answer relates to the distinctive sound produced by worn brake pads. When brake pads begin to wear down, they typically feature a small metal indicator that emits a high-pitched squealing or screeching noise when it makes contact with the brake rotor. This sound serves as a warning that the brake pads are becoming too thin and need replacing to ensure proper braking performance and safety.

Other methods, like checking the fluid level or observing tire wear, do not directly indicate the condition of the brake pads. The fluid level is more indicative of overall brake system health rather than specific pad wear. Tire wear might be influenced by several factors, including alignment issues or tire pressure, but it does not directly correlate with brake pad condition. Lastly, feeling the brakes engage easily is not a reliable measure; while it may suggest good hydraulic function, it does not signal whether the brake pads are worn. Thus, the squealing noise is a clear and immediate indicator that warrants attention to the brake system.