Question 7991
During emergency braking with ABS, if the brake pedal vibrates, you must...
- keep braking hard.
- pump the brake pedal.
- release the pedal to avoid locking the wheels.
Show answer and explanation
Correct answer: keep braking hard.
That vibration comes from ABS adjusting the brake pressure at each wheel to keep it from locking. It does not indicate a malfunction. Keep the pedal pressed all the way down until the car stops. If you release it or pump it, you get less braking and travel more meters before stopping.