Brake System - Toyota 2006 Tundra Owner's Manual

Brake system

Without the vehicle stability control
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 increase. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have
brakes fixed immediately.
With the vehicle stability control sys-
tem—
This brake system has 2 independent hy-
draulic circuits. If either circuit should fail,
the other will still work. However, the ped-
al will be harder to press, and your stop-
ping distance will increase. Also,
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have
brakes fixed immediately.
358
'06 TUNDRA_U (L/O 0508)
BRAKE BOOSTER (without the vehicle
stability control system)
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
Do not pump the brake pedal if the
D
your engine stalls. Each push on the
pedal uses up your reserved vacu-
um.
Even if the power assist is com-
D
pletely lost, the brakes will still
work. But you will have to push the
pedal hard, much harder than nor-
mal. And your braking distance will
increase.
the
your
BRAKE BOOSTER (with the vehicle sta-
bility control system)
The brake booster uses brake fluid pres-
surized by the pump to power−assist the
brakes. If the brake booster fails during
driving, the brake system warning light
comes on and buzzer sounds continuous-
ly. In this case, the brakes may not work
properly. If they do not work well, depress
the brake pedal firmly. If the brake system
warning light comes on, immediately stop
your vehicle and contact your Toyota deal-
er.
The brake system warning light may stay
on for about 60 seconds after the ignition
key is turned to the "ON" position. It is
normal if the light turns off after a while.
Depressing the brake pedal repeatedly
may turn on the brake system 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 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 not a malfunction.
2006 TUNDRA from Oct. '06 Prod. (OM34458U)