Lexus ES-300 2001 Manual page 326

CAUTION
D Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your reserved
vacuum.
D Even if the power assist is completely lost, the brakes
will still work. But you will have to push the pedal
hard, much harder than normal. And your braking
distance will be longer.
Anti–lock brake system
The anti–lock brake system is designed to help
prevent lock–up of the wheels during a sudden
braking or braking on slippery road surfaces. This
assists in providing directional stability and
steering performance of the vehicle under these
circumstances.
Effective way to press the ABS brake pedal: When the
anti–lock brake system function is in action, you may feel the
brake pedal pulsating and hear a noise. In this situation, to
let the anti–lock brake system work for you, just hold the
brake pedal down more firmly. Do not pump the brake in a
panic stop. This will result in reduced braking performance.
STARTING AND DRIVING
309