2007 TOYOTA TUNDRA brakes

2002007 TUNDRA from Jul. ’07 Prod. (OM34463U)
(a) Brake System Warning Light andbuzzer
This light comes on in the following cases
when the ignition switch is in the “ON”
position.
When the parking brake is applied...
This light comes on for a few seconds
when the ignition switch is turned to the
“ON” position even after the parking brake
is released.
When the brake fluid level is low...
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
Have your vehicle checked at your
Toyota dealer in the following case:
The light does not come on even if the
parking brake is applied when the igni-
tion switch is in the “ON” position.
The light does not come on even if the
ignition switch is turned on with the
parking brake released.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If either of the following conditions
occurs, immediately stop your vehicle
at a safe place and contact your
Toyota dealer.
The light does not turn off even
after the parking brake is released
while the engine is running.
In this case, the brakes may not
work properly and your stopping
distance will become longer. De-
press the brake pedal firmly and
bring the vehicle to an immediate
stop.
The brake system warning light re-
mains on together with the “ABS”
warning light.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely un-
stable during braking.
(b) Driver’s Seat Belt Reminder Light and Buzzer
The light and buzzer act as a reminder to
buckle up the driver’s seat belt.
Once the ignition switch is turned to “ON”
or “START”, the reminder light flashes and
buzzer sounds if the driver ’s seat belt is
not fastened. Unless the driver fastens the
belt, the light continues flashing and the
buzzer stops after about 4 to 8 seconds.
If the vehicle speed rises above 20 km/h
(12 mph) with the seat belt unfastened,
the buzzer will sound for about 10 sec-
onds. Then, if the seat belt is still unfas-
tened, the buzzer will sound in a different
tone for 20 seconds. Even if the vehicle
speed drops below 20 km/h (12 mph), the
buzzer will continue to sound. To stop the
buzzer, fasten the seat belt. If the buzzer
still sounds, make sure the front passen-
ger ’s seat belt is fastened.

2422007 TUNDRA from Jul. ’07 Prod. (OM34463U)
The traction control system automatical-
ly helps prevent the spinning of rear
wheels (twowheel drive models) or 4
wheels (fourwheel drive models) when
the vehicle is started or accelerated on
slippery road surfaces.
When the ignition switch is turned to the
“ON” position, the system automatically
turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power to the rear wheels (twowheel
drive models) or 4 wheels (fourwheel
drive models) cannot be maintained,
even though the traction control sys-
tem is in operation. Do not drive the
vehicle under any speed or maneuver-
ing conditions which may cause the
vehicle to lose traction control. In si-
tuations where the road surface is
covered with ice or snow, your ve-
hicle should be fitted with snow tires
or tire chains. Always drive at an ap-
propriate and cautious speed for the
present road conditions.
XS17004a
Ty p e A
XS17005a
Ty p e B
NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the trac-
tion control system is in the self−check
mode, but does not indicate a malfunction.
When the traction control system is oper-
ating, the following conditions occur:
The system controls the spinning of the
rear wheels (two −wheel drive models)
or 4 wheels (four −wheel drive models).
At this time, the slip indicator light
blinks.
You may feel vibration or noise in your
vehicle, caused by operation of the
brakes. This indicates the system is
functioning properly.
The slip indicator light comes on for a few
seconds when the ignition switch is turned
to the “ON” position. If the indicator light
does not come on when the ignition is
turned on, contact your Toyota dealer.
Traction control system

2442007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS17006a
Ty p e A
XS17007a
Ty p e B
“VSC OFF” warning light
The light flashing warns that there is a
problem somewhere in the following.
Traction control system
Vehicle stability control system
“AUTO LSD” system
When the system is normal and the igni-
tion switch is turned to the “ON” position,
the light will come on and will go off after
a few seconds.
If the “VSC OFF” warning light flashes
while driving, the traction control system
does not work. However, if the brakes
operate normally when applied, it is no
problem to continue your driving.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition switch is turned to the
“ON” position.
The warning light remains on after the
ignition switch is turned to the “ON”
position.
The warning light flashes while driving
XS17009
The “AUTO LSD” system aids traction
by using the traction control system to
control engine performance and braking
when one of the rear wheels begins to
spin.
This system should be used only when
wheel spinning occurs in a ditch or
rough surface.
This system is effective in case one of
the rear wheels is spinning.
“AUTO LSD” system

2472007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS17006a
Ty p e A
XS17007a
Ty p e B
“VSC OFF” warning light
The light flashing warns that there is a
problem somewhere in the following.
“AUTO LSD” system
Traction control system
Vehicle stability control system
When the system is normal and the igni-
tion switch is turned to the “ON” position,
the light will come on and will go off after
a few seconds.
If the “VSC OFF” warning light flashes
while driving, the “AUTO LSD” system
does not work. However, as the brakes
operate normally when applied, it is no
problem to continue your driving.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition switch is turned to the
“ON” position.
The warning light remains on after the
ignition switch is turned to the “ON”
position.
The warning light flashes while driving.
CAUTION
Do not drive with the “AUTO LSD”
system continuously turned on.

2482007 TUNDRA from Jul. ’07 Prod. (OM34463U)
The vehicle stability control system
helps provide integrated control of the
systems such as antilock brake sys-
tem, traction control, engine control,
etc. This system automatically controls
the output of the brakes or engine to
help prevent the vehicle from skidding
when cornering on a slippery road sur-
face or operating steering wheel abrupt-
ly.
The vehicle stability control system is acti-
vated when the vehicle speed is more
than 15 km/h (9 mph).
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the sys-
tem is in the self−check mode, but does
not indicate a malfunction.CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the vehicle stability control sys-
tem is operating, you must always
drive carefully and attentively to
avoid serious injury. Reckless driv-
ing will result in an unexpected ac-
cident. If the slip indicator light
blinks and an alarm sounds, special
care should be taken while driving.
Only use tires of specified size. The
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 stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 551 in Section 72.)
XS17004a
Ty p e A
XS17005a
Ty p e B
Vehicle stability control
system

2512007 TUNDRA from Jul. ’07 Prod. (OM34463U)
“VSC OFF” warning light
The light flashing warns that there is a
problem somewhere in the following.
Vehicle stability control system
Traction control system
“AUTO LSD” system
The light comes on when the ignition
switch is turned to the “ON” position, and
will go off after a few seconds.
If the light flashes while driving, the ve-
hicle stability control system does not
work. However, if the brakes operate nor-
mally when applied, it is no problem to
continue your driving.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition switch is turned to the
“ON” position.
The warning light remains on after the
ignition switch is turned to the “ON”
position.
The warning light flashes while driving. The tire pressure warning system warns
you that the tire inflation pressure is
low.
The tire pressure warning system is not
a substitute for checking normal tire infla-
tion pressure. Check the tire inflation
pressure with a tire pressure gauge regu-
larly.
CAUTION
The warning system may not activate
immediately if blowout or sudden air
loss should occur.
XS17013b
Ty p e A
XS17014b
Ty p e B
Tire pressure warning system

2522007 TUNDRA from Jul. ’07 Prod. (OM34463U)
The tire pressure warning light comes on
when the ignition switch is turned to the
“ON” position and goes off after a few
seconds. This means the tire pressure
warning system is operating properly. If
the tire inflation pressure becomes low,
the light comes on again. In this case,
adjusting the tire inflation pressure will
turn off the light after 3 to 6 minutes. If
the light comes on after blinking for 1
minute, the tire pressure warning system
is not working properly.Indicatorstatus
MeaningsDo this
ON
Tire inflation
pressure is
lowAdjust the
tire
inflation
pressure
ON after
blinking for
1 minuteTire pressure
warning
system
malfunctionHave the
system
checked at
your Toyota
dealer
CAUTION
If the tire pressure warning light
comes on, be sure to observe the
following precautions. Failure to do
so could cause loss of vehicle control
and result in death or serious injury.
Stop your vehicle in a safe place as
soon as possible. Adjust the tire
inflation pressure immediately.
If the tire pressure warning light
comes on even after tire inflation
pressure adjustment, it is probable
that you have a flat tire. Check the
tires. If the tire is flat, change to
the temporary spare tire and have
the flat tire repaired by the nearest
Toyota dealer.
Avoid abrupt maneuvering and brak-
ing. If the vehicle tires deteriorate,
you could lose control of the steer-
ing wheel or the brakes.
The tire pressure warning light may turn
on due to natural causes such as natural
air leaks or tire inflation pressure changes
caused by temperature. In this case, ad-
justing the tire inflation pressure will turn
off the light after 3 to 6 minutes.
Pushing the tire pressure warning reset
switch should not turn off the tire pressure
warning light. Adjusting the tire inflation
pressure will turn off the light.
The temporary spare tire is not equipped
with the tire pressure warning valve and
transmitter. If a tire goes flat, the warning
light will not turn off even though the flat
tire is replaced with the temporary spare
tire. Replace the temporary spare tire with
the repaired tire and adjust the proper tire
inflation pressure. The tire pressure warn-
ing light will turn off after 3 to 6 minutes.

4442007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS20015
Long reach
type
Your engine is fitted with long reach
iridiumtipped spark plugs.
NOTICE
Use only iridiumtipped spark plugs.
Do not adjust gaps for engine perfor-
mance smooth driveability.
For details about the spark plug type, see
“Service specifications” on page 582 in
Section 8.The tandem master cylinder brake system
is a hydraulic system with two separate
sub
−systems. If either sub −system s hould
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 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
Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your reserved vacu-
um.
Even if the power assist is com-
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.
Long r each iridiumtipped
spark plugs [5.7 L V8 (3URFE)
engine] Brake system