What is brake fade?

What is brake fade?

• A. Loss of braking function which occurs due to excessive use of the brakes
• B. Brakes overheating only when the vehicle is stationary
• C. Brakes locking up due to icy conditions
• D. Brake pads wearing out gradually over time

Answer: (A)

Brake fade is the loss of braking effectiveness that happens when brakes overheat from excessive use. When the braking system is subjected to heavy or prolonged use, heat builds up in the brake linings, rotors or drums, and the friction material can lose its ability to generate the same amount of friction. In extreme cases the brake fluid can boil, creating vapor within the hydraulic system and causing a temporary drop in braking power. This explains why braking can suddenly feel weak or require more pedal travel after repeated or sustained braking, such as on a long descent or after many stops. It isn’t limited to being stationary, it isn’t caused by icy conditions that lock the brakes, and it isn’t simply normal wear over time. Those describe different issues, whereas fade specifically refers to heat-induced loss of braking performance from excessive use.

Brake fade is the loss of braking effectiveness that happens when brakes overheat from excessive use. When the braking system is subjected to heavy or prolonged use, heat builds up in the brake linings, rotors or drums, and the friction material can lose its ability to generate the same amount of friction. In extreme cases the brake fluid can boil, creating vapor within the hydraulic system and causing a temporary drop in braking power. This explains why braking can suddenly feel weak or require more pedal travel after repeated or sustained braking, such as on a long descent or after many stops. It isn’t limited to being stationary, it isn’t caused by icy conditions that lock the brakes, and it isn’t simply normal wear over time. Those describe different issues, whereas fade specifically refers to heat-induced loss of braking performance from excessive use.