Brake System; Brake Booster - Lexus RX300 2001 Owner's Manual

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D The "VSC" warning light remains on after the ignition is
turned to on.
D The "VSC" warning light comes on while driving.
CAUTION
D Do not rely excessively on the vehicle skid control
system. Even if the vehicle skid control system is
operating, it is not that your vehicle is absolutely
safe. Reckless driving will result in an unexpected
accident. Always keep safety driving in mind. If the
slip indicator light flashes, sounding an alarm,
special care should be taken while driving.
D Only use tires of specified size.
manufacturer, brand and tread pattern for all 4 tires
should be the same. If you use the tires other than
specified, or different type or size, the vehicle skid
control system may not function correctly. When
replacing the tires or wheels, contact your Lexus
dealer.
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.
Do not drive your vehicle with only a single brake
system. Have your brakes fixed immediately.

Brake booster

The size,
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!
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.
2001 MY RX300_U (OM48431U)
STARTING AND DRIVING

BRAKE SYSTEM

CAUTION
CAUTION
197

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