Brake System - Lexus ES-300 2001 Manual

STARTING AND DRIVING

BRAKE SYSTEM

The tandem master cylinder brake system is a hydraulic
system with two separate sub–systems. If either
sub–system should fail, the other will still work.
However, the pedal will be harder to press, and your
stopping distance will be longer. Also, the brake system
warning light may come on.
CAUTION
Do not drive your vehicle with only a single brake
system. Have your brakes fixed immediately.
Brake booster
The brake booster uses engine vacuum to power–assist
the brakes. If the engine should quit while you are
driving, you can bring the vehicle to a stop with normal
pedal pressure. There is enough reserved vacuum for
one or two stops but no more!
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