Toyota 2008 4Runner Owner's Manual page 167

07 12.25
(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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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 the hydraulic brake booster
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fails...
If the hydraulic booster causes a problem
resulting in poor braking performance, the
warning light comes on and buzzer sounds
continuously.
152
Have your vehicle checked at
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.
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
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.
The warning buzzer comes on to-
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gether with the warning light.
In either case, this can indicate that
the brakes may not work properly
and your stopping distance will be-
come longer. Depress the
pedal firmly and bring the vehicle
to an immediate stop.
your
The brake system warning light re-
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mains on together with the "ABS"
warning light.
In this case, not only the anti−lock
brake system will fail but also the
vehicle will become extremely un-
stable during braking.
Any of the following conditions may oc-
cur, but do not indicate the malfunc-
tion:
The light may stay on for about 60
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seconds after the engine switch is
turned to the "ON" position. It is nor-
mal if it turns off after a while.
Depressing the brake pedal repeatedly
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may turn on the warning light and
buzzer. It is normal if the light turns off
and the buzzer stops sounding after a
few seconds.
You may hear a small sound in the
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engine compartment after the engine is
started or the brake pedal is depressed
repeatedly. This is a pump pulsating
sound of the brake system, and it is
brake
not a malfunction.