In braking systems, what does "pedal fade" indicate?

"Pedal fade" refers to a decrease in braking power that occurs when brake components, such as the brake pads and rotors, overheat. This overheating can lead to a loss of friction, which is essential for effective braking. When the brake system experiences excessive heat, it can reduce the ability of the brake pads to grip the rotors properly, resulting in a spongy or less responsive pedal feel. This phenomenon is particularly common in situations where brakes are applied repeatedly over a short period, such as in extended downhill driving or aggressive driving situations.

In contrast, the other choices do not accurately describe the effect known as pedal fade. Improved braking efficiency, an increase in braking noise, or enhanced responsiveness of the brake pedal do not occur as a result of the overheating of braking components. Instead, pedal fade is a clear indication of diminished brake performance, which can pose a serious safety risk if not addressed.