Brake System - Lexus RX300 Manual

STARTING AND DRIVING
Traction control failure warning
If the "TRAC OFF" indicator/warning light flashes, contact your
Lexus dealer as soon as possible. There may be trouble in the
traction control system.
CAUTION
Under certain slippery road conditions, full traction of the
vehicle and power to the front wheels cannot be maintained,
even though the traction control system is in operation. Do not
drive the vehicle under any speed or maneuvering conditions
which will cause the vehicle to lose traction. In situations
where the road surface is covered with ice or snow, your
vehicle should be fitted with snow tires or tire chains. Always
drive at an appropriate and cautious pace.
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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
reserve vacuum for one or two stops but no more!
CAUTION
D Do not pump the brake pedal if the engine stalls. Each push
on the pedal uses up your vacuum reserve.
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.