2002 Lexus ES 300 Owners Manual - Page 251

2002 Lexus ES 300 Manual

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STARTING AND DRIVING "VSC" warning light The "TRAC OFF" indicator light will come on when the "VSC" warning light comes on even if the "TRAC OFF" switch is not pushed. 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 This light warns that there is a problem somewhere in the vehicle skid control system or the traction control system. The light will come on when the ignition key is turned to "ON" and will go off after a few seconds. If the light comes on while driving, the system does not work. However, as conventional braking operates when applied, there is no problem to continue your driving. In the following cases, contact your Lexus dealer: D The warning light does not come on after the ignition key is turned to "ON". D The warning light remains on after the ignition key is turned to "ON". D The warning light comes on while driving. 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! CAUTION D Do not pump the brake pedal if the engine stalls. Each push on the pedal uses up your reserved vacuum. 237

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STARTING AND DRIVING
237
°VSC± warning light
This light warns that there is a problem somewhere in the
vehicle skid control system or the traction control system.
The light will come on when the ignition key is turned to ±ON²
and will go off after a few seconds.
If the light comes on while driving, the system does not work.
However, as conventional braking operates when applied,
there is no problem to continue your driving.
In the following cases, contact your Lexus dealer:
D
The warning light does not come on after the ignition key is
turned to ±ON².
D
The warning light remains on after the ignition key is turned
to ±ON².
D
The warning light comes on while driving.
The ±TRAC OFF² indicator light will come on when the ±VSC²
warning light comes on even if the ±TRAC OFF² switch is not
pushed.
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!
CAUTION
D
Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your reserved
vacuum.