traction control TOYOTA LAND CRUISER 2003 J100 Owners Manual

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7
∗1: For details, see ”Service reminder indicators and warning
buzzers” on page 118.
∗2: If this light flashes, see ”Cruise control” on page 138.
∗3: For details, see ”Roll sensing of curtain shield airbags off
switch” on page 65.
Vehicle skid control system off indicator light∗1
Vehicle skid control system and active traction
control system warning light∗1
Active traction control system indicator light
Slip indicator light
Roll sensing of curtain shield airbags off indicator light∗3

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(h) SRS Warning Light
This light will come on when the igni-
tion key is turned to the ”ON” position.
After about 6 seconds, the light will go
off. This means the system of the air-
bag and front seat belt pretensioners
are operating properly.
The warning light system monitors the air-
bag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sensor
assemblies, curtain shield airbag sensor
assemblies, driver ’s seat position sensor,
driver ’s seat belt buckle switch, front seat
belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and
power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the components monitored by the warning
light system. Contact your Toyota dealer
as soon as possible to service the ve-
hicle.
The light does not come on when the
ignition key is turned to the ”ON” posi-
tion or remains on.
The light comes on or flashes while
driving.If the light stays on, it indicates that the
driver and passenger airbags have a prob-
lem. If the light flashes, the side and cur-
tain shield airbags and/or the seat belt
pretensioners have a problem.
(i) ”ABS” Warning Light
The light comes on when the ignition
key is turned to the “ON” position. If
the antilock brake system and the
brake assist system work properly, the
light turns off after a few seconds.
Thereafter, if either of the systems mal-
functions, the light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system, the brake assist
system, the vehicle skid control system
and/or active traction control system do/
does not operate, but the brake system
still operates conventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components monitored by
the warning light system. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion, or remains on.
The light comes on while you are driv-
ing.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.

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Either of the following conditions may
occur, but do not indicate a malfunc-
tion.
The light may stay on for about 60
seconds after the ignition key is turned
to “ON” position. It is normal if it turns
off after a while.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
turns off after a few seconds.
(j) Open Door Warning Light
This light remains on until all the side
doors and back door are completely
closed.
(k) Unengaged ”Park” Warning Light
This light warns that the transmission
”Park” mechanism is not engaged. If the
fourwheel drive control is in the ”N” posi-
tion while the selector lever is in the ”P”
position, the transmission will disengage
and the wheels will not lock.
CAUTION
To restore the park function, shift the
fourwheel drive control out of ”N”,
or the vehicle can move.
(l) Automatic Transmission Fluid Tem- perature Warning Light
This light warns that the automatic trans-
mission fluid temperature is too high.
If this light comes on while you are driv-
ing, slow down and pull off the road. Stop
the vehicle at a safe place and put the
selector lever in ”P” and leave the engine
idling until the light goes off. If the light
goes off, you can start the vehicle again.
If the light does not go off, call a Toyota
dealer or qualified repair shop for assis-
tance.
NOTICE
Continued driving with the warning
light on may damage the automatic
transmission.
(m) Vehicle Skid Control System and Active Traction Control System
Warning Light
This light warns that there is a problem
somewhere in the vehicle skid control sys-
tem and/or active traction control system.
If the “VSC/TRAC” warning light and “VSC
OFF” indicator light come on, have your
vehicle checked by Toyota dealer as soon
as possible. However, it is no problem
that the “VSC/TRAC” warning light comes
on when the brake actuator temperature
becomes high. (For details, see “Active
traction control system” on page 140.)
The lights will come on with the ignition
key turned to “ON”, and will go off after
a few seconds.
The lights may come on for 60 seconds
after the ignition key is turned to “ON”
position. It is normal if they go out after
a while.
Depressing the brake pedal repeatedly
may turn on the lights. it is normal if they
go out after a few seconds.
When the “VSC/TRAC” warning light and
“VSC OFF” indicator light come on, the
vehicle skid control system and/or active
traction control system are not operating,
but there is no problem if you continue to
drive.

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OPERATION OF INSTRUMENTS AND
CONTROLS
Ignition switch, Transmission and Parking brake
Ignition switch with steering lock130
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 131
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
Four–wheel drive system 135
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Parking brake 137
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Cruise control 138
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Active traction control system 140
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle skid control system 142
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1 6

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“H” (high speed position, center differ-
ential locked): Lever at “H”, center differ-
ential lock button pushed in
Use this for greater traction when you
experience a loss of power, such as
wheel slipping, in the center differential
unlock mode.
“N” (neutral position): Lever at “N”
No power is delivered to the wheels. The
vehicle must be stopped.
“L” (low speed position, center differen-
tial unlocked): Lever at “L”, center differ-
ential lock button left out
Use this for maximum power and traction.
Use this for climbing or descending steep
hills, offroad driving, and hard pulling in
sand or mud.
In this mode, the braking feeling that oc-
curs when the wheels are negotiating a
sharp corner is further reduced than in the
“L” (low position, center differential locked)
mode. “L” (low speed position, center differen-
tial locked):
Lever at “L”, center differen-
tial lock button pushed in.
Use this for maximum power and traction.
Use this for hard pulling in situations the
vehicle cannot negotiate even in the “L”
(low speed position, center differential un
locked) mode. Also, using this mode when
driving down steep offroad inclines will
help contribute to increased vehicle stabil-
ity.
The indicator light tells when the differen-
tial lock is engaged. Note that the differ-
ential is not still locked as long as the
indicator light remains off.
If the indicator light does not go off when
you push out the center differential lock
button, drive straight ahead while acceler-
ating or decelerating, or drive in reverse.
See “(b) Shifting procedure” for further in-
structions. Advice for driving on slippery roads in
“L” (low speed position) mode
If you shift the fourwheel drive control
lever to “L” and the automatic transmis-
sion lever to “2” when you drive in steep
offroad areas, the output of the brake
can be controlled effectively by the active
traction control system, which assists the
driver to control the driving power of 4
wheels.
Use the “L” position of the automatic
transmission lever for maximum power
and traction when your wheels get stuck
or when you drive down a steep incline.
In the following cases, the output of the
brake can be controlled by the active trac-
tion control system if the engine speed is
under 3,000 rpm (normally engine speed
is under 3,000 rpm when the wheels get
unstuck).
The fourwheel drive control lever in
the “L” position and the automatic
transmission lever in the “L” position or
the automatic transmission lever in the
“D”, ”4”, ”3” or “2” with the transmis-
sion downshifting to the first gear

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140
RESETTING TO A FASTER SPEED
Push the lever up in the ”+ RES” direction
and hold it. Release the lever when the
desired speed is attained. While the lever
is held up, the vehicle will gradually gain
speed.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
control lever down in the ”– SET” direc-
tion.
RESETTING TO A SLOWER SPEED
Push the lever down in the ”– SET” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held down, the vehicle speed will
gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
control lever down in the ”– SET” direc-
tion.
Even if you downshift the transmission
from the ”D” position to ”4” with the cruise
control on, engine braking will not be ap-
plied because the cruise control is not
cancelled. To decrease the vehicle speed,
reset to a slower speed with the cruise
control lever or depress the brake pedal.
If you use the brake pedal, cruise control
is cancelled.RESUMING THE PRESET SPEED
If the preset speed is cancelled by pulling
the control lever or by depressing the
brake pedal, pushing the lever up in the
”+ RES” direction will restore the speed
set prior to cancellation.
However, once the vehicle speed falls be-
low about 40 km/h (25 mph), the preset
speed will not be resumed.
CRUISE CONTROL FAILURE WARNING
If the ”CRUISE” indicator light in the
instrument cluster flashes when using the
cruise control, press the ”ON·OFF” button
to turn the system off and then press it
again to turn it on.
If any of the following conditions then oc-
curs, there is some trouble in the cruise
control system.
The indicator light does not come on.
The indicator light flashes again.
The indicator light goes out after it
comes on.
If this is the case, contact your Toyota
dealer and have your vehicle inspected.
Active traction control system indicator
light
The active traction control system auto-
matically helps control the spinning of
4 wheels which may occur when accel-
erating on slippery road surfaces, by
controlling the output of the brake and
engine. Thus, the system assists driver
to control the driving power of 4
wheels. When you turn the ignition
switch on, the active traction control
system always turns on automatically,
and the active traction control indicator
light will come on. The indicator light
will go off after a few seconds.
Active traction control system

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When active traction control is applied,
the active traction control system indi-
cator light blinks.
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 ac-
tive traction control system is in the self
check mode, and does not indicate mal-
function. When the active traction control
system is operating, you may feel vibra-
tion or hear noise of your vehicle, caused
by operation of the brakes. This indicates
the system is functioning properly.
When getting the vehicle out of mud or
new snow, etc. the active traction control
system will help operate to prevent the
wheels from spinning.
Active traction control system failure
warning
This light warns when there is a problem
somewhere in the active traction control
system.
If the “VSC/TRAC” warning light comes
on, have your vehicle checked by your
Toyota dealer as soon as possible.The brake actuator temperature increases
during the active traction control system
or vehicle skid control system operating.
If the brake actuator temperature becomes
too high while the active traction control
system or vehicle skid control system is
operating, a buzzer will start to sound
intermittently to indicate that the active
traction control system can no longer op-
erate. In this case, immediately stop your
vehicle at a safe place. 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 “VSC/TRAC”
warning light will come on and the traction
control system temporarily stops operating
in order to protect the brake actuator. (Al-
though the active traction control system
does not operate, there is no problem to
continue your driving.) The system will be
automatically restored after a short time
and “VSC/TRAC” warning light goes off if
the accelerator pedal is released.
When the “ABS” warning light come on,
the active traction control system is not
operating.
The “VSC/TRAC” warning light will come
on when the ignition key is turned “ON”,
and will go off after a few seconds.

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The “VSC/TRAC” warning light may stay
on for 60 seconds after the ignition key
is turned to “ON” position. It is normal if
it goes off after a few seconds.
Depressing the brake pedal repeatedly
may turn on the “VSC/TRAC” warning
light. It is normal if it goes off after a few
seconds.
When the “VSC/TRAC” warning light
comes on the active traction control sys-
tem is not operating, but there is no prob-
lem if you continue to drive.
In the following cases, contact your Toyota
dealer:
The “VSC/TRAC” warning light does not
come on after the ignition key is turned
“ON”.
The “VSC/TRAC” remains on after the
ignition key is turned “ON”.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicles and
power to 4 wheels may not be main-
tained, even though the active trac-
tion control system is in operation.
Do not drive the vehicle under any
speed or maneuvering conditions
which will cause the vehicle to lose
traction. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the road conditions pres-
ent.
The vehicle skid control system helps
provide integrated control of the sys-
tems such as antilock brake, traction
control, engine control, etc. This sys-
tem automatically controls the output of
the brakes or engine to help prevent
the vehicle from skidding under adverse
conditions.
The vehicle skid control system activates
when the vehicle speed is more than the
following speed.
Fourwheel drive control lever in “H”15 km/h (9 mph)
. . . . . . . . . . . . . . . . . . . . . . . .
Fourwheel drive control lever in “L”
30 km/h (19 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 ve-
hicle skid control system is in the self
check mode and does not indicate a mal-
function.
Vehicle skid control system

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143
CAUTION
Active traction control system, ve-
hicle skid control system and anti
lock brake system are electronic
systems designed to help the driver
maintain control under adverse con-
ditions. They are not a substitute
for safe driving practices. Factors
including speed, road conditions
and driver steering input can all af-
fect whether active traction control
system, vehicle skid control system
and antilock brake system will be
effective in preventing a loss of
control. Always keep safety driving
in mind. If the slip indicator light
flashes, sounding an alarm, 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 skid control sys-
tem may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 275.)
If the vehicle is going to skid during driv-
ing, the slip indicator light flashes and an
alarm sounds intermittently.
When you turn the ignition switch on, the
slip indicator light will come on. The slip
indicator light will go off after a few sec-
onds.Pushing the center differential lock button
automatically turns the vehicle skid control
system off. At this time, the “VSC OFF”
indicator comes on with the center differ-
ential lock indicator light. (For details, see
“Fourwheel drive system—(a)Fourwheel
drive control” on page 135.)

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Vehicle skid control system failure
warning
These lights warn when there is a prob-
lem somewhere in the vehicle skid control
system or active traction control system.
If the “VSC/TRAC” warning light and “VSC
OFF” indicator light come on, have your
vehicle checked by your Toyota dealer as
soon as possible. However, there is no
problem if the “VSC/TRAC” warning light
comes on when the brake actuator tem-
perature becomes high. (For details, see
“Active traction control system” on page
140.)When the “ABS” warning light comes on,
the vehicle skid control system is not op-
erating.
The “VSC/TRAC” warning light and “VSC
OFF” indicator light will come on when the
ignition key is turned “ON”, and will go off
after a few seconds.
The “VSC/TRAC” warning light and “VSC
OFF” indicator light may stay on for 60
seconds after the ignition key is turned to
“ON” position. It is normal if they go off
after a few seconds.
Depressing the brake pedal repeatedly
may turn on the lights. It is normal if they
go off after a few seconds.
When the “VSC/TRAC” warning light and
“VSC OFF” indicator light come on, the
vehicle skid control system is not operat-
ing, but there is no problem if you contin-
ue to drive.
In the following cases, contact your Toyota
dealer:
The “VSC/TRAC” warning light, “VSC
OFF” indicator light and slip indicator
light do not come on after the ignition
key is turned “ON”.
The “VSC/TRAC” warning light and
“VSC OFF” indicator light remain on af-
ter the ignition key is turned “ON”.
The “VSC OFF” indicator light comes
on while driving without pushing the
center differential lock switch.
CAUTION
Active traction control system, ve-
hicle skid control system and anti
lock brake system are electronic
systems designed to help the driver
maintain control under adverse con-
ditions. They are not a substitute
for safe driving practices. Factors
including speed, road conditions
and driver steering input can all af-
fect whether active traction control
system, vehicle skid control system
and antilock brake system will be
effective in preventing a loss of
control. Always keep safety driving
in mind. If the slip indicator light
flashes, sounding an alarm, 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 skid control sys-
tem may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 275.)