2008 TOYOTA LAND CRUISER Engine

188 2−4. Using other driving systems
nSensor detection information
lCertain vehicle conditions and the surrounding environment may affect
the ability of the sensor to correctly detect obstacles. Particular instances
where this may occur are listed below.
There is dirt, snow or ice on the sensor. (Wiping the sensor will resolve
this problem.)
The sensor is frozen. (Thawing the sensor will resolve this problem.)
The sensor is covered in any way.
In harsh sunlight or intense cold weather.
When driving on bumpy, sloped or gravel roads, or over grass.
If there is something producing ultrasonic waves nearby, such as
another vehicle’s horn, motorcycle engine noise, air braking sound
from heavy−duty vehicles, or another vehicle using the park assist sys−
tem.
In heavy rain, or if water is splashed on the sensors.
The vehicle is leaning considerably to one side.
If a commercial fender pole or radio antenna is installed.
If moving towards a high curb or a curb corner.
If towing eyelet is installed on your vehicle.
The bumper or sensor receives a strong impact.
A non−genuine Toyota suspension (lowered suspension etc.) is
installed.
In addition to the examples above, there are instances in which, because of
their shapes, signs and other objects may be judged by the sensor to be
closer than they are.
lThe shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles.
Thin objects such as wire, fencing or rope.
Objects that absorb sound waves, such as cotton or snow.
Objects with sharp corners.
Low objects.
Objects where the upper section projects out over the lower section.

192 2−4. Using other driving systems
Neutral position
Shifting to the neutral position cuts drive power to the wheels.
n
Shifting from “H4” to the neutral position
Stop the vehicle completely.
Make sure the vehicle is stopped in a safe place while carrying out
the following procedure.
Confirm the following:
lThe four wheel−drive control switch is in “H4”. (The low speed four−
wheel drive indicator light is not illuminated.)
If the switch is in “L4”, turn it to “H4”. (
P. 190)
lThe center differential is unlocked. (The center differential lock indi−
cator light is not illuminated.)
If the center differential is locked,
press the center differential lock/
unlock switch to unlock the center differential. ( P. 190)
Set the parking brake firmly and put the shift lever in “N”.
Turn the engine off if the engine is running, then turn the
“ENGINE START STOP” switch to the IGNITION ON mode.
Do not start the engine till the end of the procedure.
Shift the shift lever to “P”.
Depress and release the brake pedal 3 times.
Depress the pedal firmly each time, then keep the pedal depressed
the third time.
Shift the shift lever to “N”.
Depress and release the brake pedal 3 times.
Release the brake pedal once and then depress and release the
brake pedal 3 times.
Depress the pedal firmly each time, then keep the pedal depressed
the third time.
STEP1
STEP 2
STEP 3
STEP 4
STEP 5
STEP6
STEP 7
STEP 8

193
2−4. Using other driving systems
2
When driving
Shift the four−wheel drive control switch to “L4”, then shift to
“H4” again.
When shifting the four−wheel drive control switch, push the switch
down while turning it.
The low speed four−wheel drive indicator light will flash slowly (turns
on and off every 2 seconds).
Shift the shift lever to “P”.
Shifting to the neutral position is completed with above procedure.
The unengaged “Park” warning light will turn on when the shift lever
is shifted to the “P” position.
To return to “H4” when the vehicle is in this condition, carry out the
following procedure.
nShifting from neutral position to “H4”
Stop the vehicle completely.
Make sure the vehicle is stopped in a safe place while carrying out
the following procedure.
Set the parking brake firmly.
Turn the “ENGINE START STOP” switch to the IGNITION ON
mode.
Do not start the engine at this time.
Depress the brake pedal firmly.
Keep the brake pedal depressed till the end of the procedure.
Shift the shift lever to “N”.
Shift the four−wheel drive control switch to “L4”, and then shift
to “H4” again.
When shifting the four−wheel drive control switch, push the switch
down while turning it.
The low speed four−wheel drive indicator light will turn off.
Shifting to “H4” is completed when the low speed four−wheel drive
indicator light turns off.
STEP9
STEP 10
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP6

194 2−4. Using other driving systems
nThe fourwheel drive control switch can be operated when
lThe “ENGINE START STOP” switch is in IGNITION ON mode.
lThe shift lever is in the “N” position.
lThe vehicle is stopped completely.
nAdvice for driving on slippery roads in “L4” (low speed position)
lIf you shift the four−wheel drive control switch to “L4” and the shift lever to
the “2” range of “S” while driving in steep off−road 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.
lUse the “1” range of “S” of the shift lever for maximum power and traction
when your wheels get stuck or when driving down a steep incline. In the
following cases, the output of the brake can be controlled by the active
traction control system if the engine speed is under 3,000 rpm (normally
under 3,000 rpm when the wheels get unstuck).
The four−wheel drive control switch is in the “L4” position and the shift
lever is in the “1” range of “S” or the shift lever is in “D” or “S” with the
transmission downshifted to first gear.
The four−wheel drive control switch is in the “L4” position and the shift
lever is in the “R” position.
nThe center differential lock/unlock button can be operated when
lThe “ENGINE START STOP” switch is in IGNITION ON mode.
lThe vehicle speed is less than 60 mph (100 km/h).
nLocking/unlocking the center differential
lWhen the center differential is locked, VSC (vehicle stability control) is
automatically turned off. (The center di
fferential lock and “VSC OFF” indi−
cator lights come on.)
lIf the operation is not completed, the center differential lock indicator
blinks. If the indicator light does not turn off when unlocking the center
differential, drive straight ahead while accelerating or decelerating, or
drive in reverse.
lIf the center differential lock/unlock is not completed within 5 seconds
while the cruise control system is on, cancel the cruise control system.

195
2−4. Using other driving systems
2
When driving
nIf the low speed fourwheel drive in dicator light or the center differen
tial lock indicator light blinks
lIf the low speed four−wheel drive indicator light continues to blink when
using the four−wheel drive control switch, stop the vehicle completely,
move the shift lever to “N” and operate the switch again.
lIf the shift lever is moved before the low speed four−wheel drive indicator
light has turned on/off, a beep sounds and the transfer position may not
successfully change. In this case, stop the vehicle completely, return the
shift lever to “N” and operate the switch again.
lIf the engine coolant temperature is too low, the four−wheel drive control
system may not be able to shift. When the engine is warmer press the
switch again.
If the low speed four−wheel drive indicator light or the center differential lock
indicator light continues to blink even after attempting the above, there may
be a malfunction in the engine, the brake system or the four−wheel drive sys−
tem. In this case, you may not be able to shift between “H4” and “L4”, and
the center differential lock may not be operable. Have the vehicle inspected
by your Toyota dealer immediately.

198 2−4. Using other driving systems
When the system is turned off
If the system is turned off when crawl control is operating, a buzzer
will sound for 3 seconds, the slip indicator turns off, and the crawl
control indicator flashes until the system has turned off completely.
When turning off crawl control while
traveling, stop the vehicle before
the crawl control indicator turns off, or drive extremely carefully.
nThe crawl control can be operated when
lThe engine is running.
lThe shift lever is in any gear other than “P” or “N”.
lThe four−wheel drive control switch is in “L4”.
lThe parking brake is released.
lThe driver ’s door is closed.
l
When the driving mode is not set to second start mode.

203
2−4. Using other driving systems
2
When driving
To disable Active TRAC and/or VSC system
If the vehicle gets stuck in fresh snow or mud, Active TRAC and VSC
system may reduce power from the engine to the wheels. You may
need to turn the system off to enable you to rock the vehicle in order
to free it.
n
Turning off Active TRAC
Quickly push and release the
button to turn off Active TRAC.
The slip indicator light should
come on.
Push the button again to turn the
system back on.
nTurning off Active TRAC and VSC
Push and hold the button for
more than 3 seconds while the
vehicle is stopped to turn off
Active TRAC and VSC.
The slip indicator light will come
on and “VSC OFF” will be shown
on the multi−information display.
Push the button again to turn the
system back on.
OFF
ITY24C034
OFF
ITY24C038

204 2−4. Using other driving systems
nTurning off VSC
Push the center differential lock/
unlock switch to turn off VSC
system.
The center differential lock indica−
tor light will come on and “VSC
OFF” will be shown on the multi−
information display.
Push the switch again to turn the
system back on.
ITY24C040
nAutomatic reactivation of Active TRAC and VSC
Turning the “ENGINE START STOP” switch off after turning off the Active
TRAC and VSC systems will automatically re−enable them.
nAutomatic Active TRAC reactivation
If only the Active TRAC system is turned off, the Active TRAC system will
turn on when vehicle speed increases.
nAutomatic Active TRAC and VSC reactivation
If the Active TRAC and VSC systems are turned off, the systems will not turn
on even when vehicle speed.