Red Seal Automotive Service Technician Practice Exam

What does 'brake fade' indicate?

1. A malfunction in the anti-lock braking system

2. A reduction in braking effectiveness

3. An increase in brake fluid temperature

4. A problem with the brake booster

The correct answer is: A reduction in braking effectiveness

'Brake fade' refers to a reduction in braking effectiveness, typically occurring after prolonged use of the braking system. This phenomenon is most commonly associated with the overheating of brake components, particularly the brake pads and rotors. When brakes are used repeatedly or for extended periods, such as during a long descent or heavy stop-and-go traffic, they can become overly hot. This heat can lead to a decrease in friction between the brake pads and the rotors, resulting in diminished stopping power. The other options address different brake-related issues. A malfunction in the anti-lock braking system would typically manifest as issues with the ABS engaging or disengaging improperly, but not directly with fade. An increase in brake fluid temperature can happen during normal operation, but it does not define brake fade itself. Problems with the brake booster may result in increased pedal effort or a feeling of a 'hard' brake pedal, which is different from the symptom of reduced braking capacity seen with brake fade.