2008 TOYOTA TUNDRA Owners Manual

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
CAUTION
Do not use the “AUTO LSD” system
in conditions other than the above. A
much greater steering effort and more
careful cornering control will be re-
quired.
XS17010a
Traction control off mode
XS17046
“AUTO LSD” mode
The “AUTO LSD” is activated under the
following conditions. At this time, the
“AUTO LSD”, slip indicator and “VSC
OFF” (“AUTO LSD” mode) lights will
come on.
The driving mode is set in the two −
wheel drive mode (In the four −wheel
drive mode, the system does not
work.)
Driving at a speed under 100 km/h (62
mph)
Traction control off mode or “AUTO
LSD” mode turns on.
Traction control off mode
To turn on the traction control off mode,
briefly push the “VSC OFF” switch.
Then, the “AUTO LSD” and slip indicator
lights will come on.
The following systems will be ready to be
activated:
“AUTO LSD” system
Vehicle stability control system
To turn off the traction control off mode,
briefly push the “VSC OFF” switch again
and the “AUTO LSD” and slip indicator
lights will go off.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
When you push and hold the “VSC OFF”
switch for 3 seconds or more with the
vehicle stopped, the “AUTO LSD” mode
will be turned on.
“AUTO LSD” mode
To turn on the “AUTO LSD” mode, push
and hold the “VSC OFF” switch for 3 sec-
onds or more with the vehicle stopped.
The “AUTO LSD”, slip indicator and “VSC
OFF” lights will come on.
The following system will be ready to be
activated:
“AUTO LSD” system
To turn off the “AUTO LSD” mode, briefly
push the “VSC OFF” switch again and the
“AUTO LSD”, slip indicator and “VSC
OFF” lights will go off.
When you push and hold the “VSC OFF”
switch for 3 seconds or more with the
vehicle stopped, the “AUTO LSD” mode
turns off, and the “VSC OFF” mode turns
on. See “Vehicle stability control system”
on page 250 in this Section.
In both Traction control off mode and
“AUTO LSD” mode:
If the engine is turned off while the slip
indicator, “AUTO LSD” and “VSC OFF”
lights are on and then restarted, the indi-
cator lights will turn off automatically.
XS17044
Ty p e A
XS17043
Ty p e B
Make sure the “AUTO LSD”, slip indicator
and “VSC OFF” (“AUTO LSD” mode) lights
come on under the above condition when
you use the “AUTO LSD” system.
The slip indicator light blinks when the
system is controlling the spinning of the
rear wheels.
The “AUTO LSD”, slip indicator and “VSC
OFF” (“AUTO LSD” mode) lights come on
for a few seconds when the engine switch
is turned to the “ON” position. If the indi-
cator lights do not come on when the
engine switch is turned to the “ON” posi-
tion, contact your Toyota dealer.
The brake actuator temperature increases
during continuous operation of the follow-
ing systems under conditions such as on
slippery roads.
“AUTO LSD” system
Traction control system
If the brake actuator temperature becomes
too high while any of these systems is
operating, a buzzer will start to sound
intermittently to indicate that the “AUTO
LSD” system can no longer operate. In
this case, immediately stop your vehicle at
a safe place.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
If the system continues to operate, the
buzzer sound changes from intermittent to
continuous. (The continuous buzzer
sounds for about 3 seconds.)
At the time the slip indicator light will
come on and the “AUTO LSD” system
temporarily stops operating in order to
protect the brake actuator. (Although the
“AUTO LSD” system does not operate, it
is not a problem to continue driving.) The
system will be automatically restored after
a short time.
XS17024a
Ty p e A
XS17025a
Ty p e B
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
The “VSC OFF” indicator light flashes and
the slip indicator light comes on to warn
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 engi-
ne switch is turned to the “ON” position,
the lights will come on and will go off
after a few seconds.
If the “VSC OFF” indicator light flashes
and the slip indicator lights comes on dur-
ing driving, the “AUTO LSD” system will
not work. However, because the brakes
operate normally when applied, it is not a
problem to continue driving.
In the following cases, contact your Toyota
dealer:
The “VSC OFF” and slip indicator lights
do not come on after the engine switch
is turned to the “ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light remains on
after the engine switch is turned to the
“ON” position.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
while driving.
CAUTION
Do not drive with the “AUTO LSD”
system continuously turned on.
The vehicle stability control system
helps provide integrated control of sys-
tems such as the 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 when the steering wheel is op-
erated abruptly.
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 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 556 in Section 72.)
Vehicle stability control
system (twowheel drive mode
only)

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
XS17004a
Ty p e A
XS17005a
Ty p e B
If the vehicle stability control system is
operating to prevent skidding, the slip indi-
cator light blinks and an alarm sounds
intermittently. Special care should be tak-
en while driving.
The slip indicator light comes on for a few
seconds when the engine switch is turned
to the “ON” position. If the indicator light
does not come on when the engine switch
is turned on, contact your Toyota dealer.
XS17006a
Ty p e A
XS17007a
Ty p e B

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The vehicle stability control system au-
tomatically turns off, and the “VSC
OFF” indicator light is illuminated,
when the fourwheel drive mode is set.
The “VSC OFF” indicator light comes on
for a few seconds when the engine switch
is turned to the “ON” position, and then
turns off. If the four−wheel drive mode is
set, the indicator light is illuminated again.
XS17046
When getting the vehicle out of mud or
newly fallen snow, etc., it may be bene-
ficial to turn off the vehicle stability
control system. This system which also
controls engine performance interferes
with the process of freeing the rear
wheels (twowheel drive models).
To turn off the vehicle stability control
system: Push and hold the “VSC OFF”
switch for 3 seconds or more with the
vehicle stopped. The vehicle stability
control system turns off and the “AUTO
LSD” mode turns on.
The “AUTO LSD”, slip indicator and “VSC
OFF” lights will come on. When you push and hold the “VSC OFF”
switch for 3 seconds or more with the
vehicle stopped, the “AUTO LSD” mode
turns off and the “VSC OFF” mode turns
on.
After the indicator light turns off, the “VSC
OFF” and slip indicator lights will come
on.
“VSC OFF” mode can turn off the fol-
lowing systems:
Vehicle stability control system
Traction control system
“AUTO LSD” system (two
−wheel drive
mode)
Active traction control system (four −
wheel drive mode)
To turn on: Briefly push the “VSC OFF”
switch once again.
The “VSC OFF” and slip indicator lights
will go off.
If the engine is turned off while the “VSC
OFF” and slip indicator lights are on and
then restarted, the indicator lights will turn
off automatically.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “VSC OFF” and slip indicator lights
come on for a few seconds when the
engine switch is turned to the “ON” posi-
tion. If the indicator lights do not come on
when the engine switch is turned to the
“ON” position, contact your Toyota dealer.
XS17035a
CAUTION
Do not drive with the vehicle stability
control system continuously turned
off.
XS17024a
Ty p e A
XS17025a
Ty p e B

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
The “VSC OFF” indicator light flashes and
the slip indicator light comes on to warn
that there is a problem somewhere in the
following:
Vehicle stability control system
Traction control system
“AUTO LSD” system
The slight comes on when the engine
switch is turned to the “ON” position, and
will go off after a few seconds.
If the “VSC OFF” indicator light flashes
and the slip indicator light comes on dur-
ing driving, the vehicle stability control
system will not work. However, if the
brakes operate normally when applied, it
is not a problem to continue driving.
In the following cases, contact your Toyota
dealer:
The “VSC OFF” and slip indicator lights
do not come on after the engine switch
is turned to the “ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light remains on
after the engine switch is turned to the
“ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
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.
Tire pressure warning system