Toyota land cruiser prado Owner's Manual page 133

(a) Brake System Warning Light and
Buzzer
This light comes on in the following cases
when the engine switch is in the "ON"
position.
When the parking brake is applied...
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With the anti−lock brake system—
This light comes on for a few seconds
when the engine switch is turned to the
"ON" position even after the parking brake
is released.
When the brake fluid level is low...
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CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
When vacuum is low (diesel−powered
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vehicles without the vehicle stability
control system)...
When the hydraulic brake booster
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fails (with the vehicle stability con-
trol system)...
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If the hydraulic booster causes a problem
resulting in poor braking performance, the
warning light comes on and buzzer sounds
continuously.
Have your vehicle checked at your
Toyota dealer in the following cases:
The light does not come on even if the
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parking brake is applied when the en-
gine switch is in the "ON" position.
With the anti−lock brake system—
The light does not come on even if the
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engine switch is turned on with the
parking brake released.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
Without the anti−lock brake system—
If the light does not turn off even
after the parking brake is released
while the engine is running, immedi-
ately stop your vehicle at a safe
place and contact your Toyota dealer.
In this case, the brakes may not work
properly and your stopping distance
will become longer. Depress the brake
pedal firmly and bring the vehicle to
an immediate stop.
With the anti−lock brake system—
If any of the following conditions oc-
curs, immediately stop your vehicle at
a safe place and contact your Toyota
dealer.
The light does not turn off even
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after the parking brake is released
while the engine is running.