four wheel drive LEXUS LX570 2016 User Guide

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
4
Driving
Four-wheel drive system
H4 (high speed position)
Normal driving on all types of roads.
L4 (low speed position)
Driving requiring maximum power and
traction such as climbing or descending
steep hills, off-road driving, and hard
pulling in sand or mud, etc.
The low speed four-wheel drive indica-
tor will come on.
Use the four-wheel drive control switch and center differential lock/unlock
switch to select the following transfer and center differential modes.
Four-wheel drive control switch
1
2

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
Lock the center differential when your
vehicle’s wheels get stuck in a ditch or
when driving on a slippery or bumpy
surface.
The center differential lock indicator will
come on.
Unlock the center differential after the
wheels have been freed, or after moving
to a flat, non-slippery surface.
To unlock the center differential, push the switch again.
■Shifting from H4 to L4
Stop the vehicle completely with brake pedal held down.
Shift the shift lever to N.
Push and shift the four-wheel drive control switch to L4.
Maintain this condition until the low sp eed four-wheel drive indicator turns on.
■Shifting from L4 to H4
Stop the vehicle completely with brake pedal held down.
Shift the shift lever to N.
Push and shift the four-wheel drive control switch to H4.
Maintain this condition until the low sp eed four-wheel drive indicator turns off.
■The four-wheel drive control switch can be operated when
●The engine switch is in IGNITION ON mode.
●The shift lever is in the N position.
●The vehicle is stopped completely.
■The low speed four-wheel drive indicator light
The indicator light blinks while shifting between H4 and L4.
■Advice for driving on slippery roads
●If you shift the four-wheel drive control switch to L4 and the shift lever to the 2 range of
S or D (vehicles with paddle shift switches) while driving in steep off-road areas, the
output of the brake can be controlled effectively by the Active TRAC, which assists the
driver to control the driving power of 4 wheels.
●Use the 1 range of S or D (vehicles with pa ddle shift switches) for maximum power and
traction when your wheels get stuck or when driving down a steep incline.
Center differential lock/unlock switch
Shifting between H4 and L4
1
2
3
1
2
3

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Driving
■The center differential lock indicator light
The indicator light blinks while locking/unlocking the center differential.
■The center differential lock/unlock switch can be operated when
●The engine switch is in IGNITION ON mode.
●The vehicle speed is less than 62 mph (100 km/h).
■Locking/unlocking the center differential
●When the four-wheel drive control switch is in L4 with the center differential locked,
VSC is automatically turned off. (The center differential lock and VSC OFF indicator
lights come on.)
●If the operation is not completed, the center di fferential lock indicator blinks. If the indi-
cator light does not turn off when unlocking the center differential, drive straight ahead
while accelerating or decelerating, or drive in reverse.
●If the center differential lock/unlock is not completed within 5 seconds while the cruise
control system is on, cancel the cruise control system.
■If the low speed four-wheel drive indicator light or the center differential lock indicator
light blinks
●If the low speed four-wheel drive indicator lig ht 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.
●If the shift lever is moved before the low sp eed four-wheel drive indicator turns on/off,
the transfer mode may not be shifted comp letely. The transfer mode disengages both
the front and rear driveshafts from the powertrain and allows the vehicle to move
regardless of the shift position. (At this time , the indicator blinks and the buzzer sounds.)
Therefore, the vehicle is free to roll even if the automatic transmission is in P. You or
someone else could be seriously injured. You must complete the shifting of the transfer
mode.
To complete the shifting, stop the vehicle completely, return the shift lever to N, and
confirm that the shift was completed (the indicator turns on/off).
●If the engine coolant temperature is too low, the four-wheel drive control system may
not be able to shift. When the engine is warmer operate the switch again.
If the low speed four-wheel drive indicator light or the center differential lock indicator
light continues to blink even after attempti ng the above, there may be a malfunction in
the engine, the brake system or the four-wheel drive system. 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 Lexus dealer immediately.

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
WA R N I N G
■While driving
Never move the four-wheel drive control switch
if the wheels have lost traction. Doing
so may cause an accident resulting in death or serious injury.
■When the vehicle is parked
If the shift lever is moved before the low sp eed four-wheel drive indicator turns on/off,
the transfer mode may not be shifted completely. The transfer mode disengages both
the front and rear driveshafts from the powertrain and allows the vehicle to move
regardless of the shift position. (At this time, the indicator blinks and the buzzer
sounds.)
Therefore, the vehicle is free to roll even if the automatic transmission is in P. You or
someone else could be seriously injured. You must complete the shifting of the transfer
mode.
NOTICE
■To prevent damage to the center differential
●For normal driving on dry and hard surface roads, unlock the center differential.
●Unlock the center differential after the wheels are out of the ditch or off the slippery
or bumpy surface.
●Do not push the center differential lock/u nlock switch when the vehicle is turning or
when its wheels are spinning freely off the ground.

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Driving
Crawl Control
Press the ON/OFF switch while Crawl Control is operating. If the switch is
turned off, the slip indicator and the Turn Assist indicator will go off (if the Turn
Assist function is in use), the Crawl Control indicator will flash until the system
has turned off completely, and a message stating that Crawl Control has been
turned off will be displayed on the multi-information display for several seconds.
When turning off Crawl Control while driv ing, stop the vehicle before the Crawl
Control indicator turns off, or drive extremely carefully.
Turn Assist function
Press the Turn Assist switch while the Turn Assist function is operating. When the
switch is pressed, the Turn Assist indicat or will go off, and a message stating that
the Turn Assist function has been turned off will be displayed on the multi-infor-
mation display for several seconds.
■The Crawl Control and Turn Assist function can be operated when
Crawl Control
●The engine is running.
●The shift lever is in any gear other than P or N.
●The four-wheel drive control switch is in L4.
●The driver’s door is closed.
Turn Assist function
●Crawl Control is operating.
●The center differential is not locked.
●The accelerator and brake are not being operated.
●The shift lever is in any gear other than P, R or N.
●The steering wheel is turned very far.
When the system is turned off

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
■Automatic system cancelation
Crawl Control
In the following situations, th e buzzer will sound intermittently and Crawl Control will be
canceled automatically. In this event, the Crawl Control indicator will flash and then go
off, the Turn Assist indicator will go off (if the Turn Assist function is in use), and a message
stating that Crawl Control has been turned of f will be displayed on the multi-information
display for several seconds.
●When the shift lever is moved to P or N.
●When the four-wheel drive control switch is in H4.
●When the driver’s door is opened.
Turn Assist function
When the center differential is locked, the buzzer will sound intermittently and the Turn
Assist function will be canceled automatically. In this event, the Turn Assist indicator will
go off, and a message stating that the Turn Assist function has been turned off will be dis-
played on the multi-information display for several seconds.
■Function limitations
Crawl Control
●In the following situations, brake control can be used to drive downhill at a constant
speed. However, engine control is not availa ble when driving uphill at a constant speed.
• When switched to second start mode.
●In the following situation, engine control an d brake control will stop temporarily. In this
event, the Crawl Control indicator will flash.
• When the vehicle speed exceeds approximately 15 mph (25 km/h).
Turn Assist function
In the following situations, the Turn Assist func tion will stop temporarily. In this event, the
Turn Assist indicator will flash.
●When the vehicle speed exceeds approximately 6 mph (10 km/h).
●When the shift lever is moved to R.
■When the Crawl Control system is operated continuously
●If Crawl Control is used continuously for a long time, the buzzer will sound, a malfunc-
tion notification will be displayed on the multi-information display, the Crawl Control
indicator will go off, and Crawl Control will be temporarily inoperable as a result of the
brake system overheating. In this event, stop the vehicle immediately in a safe place,
and allow the brake system to cool down sufficiently until the TRAC OFF indicator
goes off. (In the meantime, normal driving is possible.)
●If Crawl Control is used continuously for a long time, the buzzer will sound, the system
will be temporarily canceled, and a malfunct ion notification will be displayed on the
multi-information display as a result of th e automatic transmission system overheating.
Stop the vehicle in a safe place until the display goes off.
■When depressing the accelerator pedal while the Crawl Control is operating
Multi-terrain Select operates in AUTO mode. ( P. 3 1 5 )

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Driving
When the Crawl Control is turned off, a
mode which matches the road condi-
tions can be selected from among the
following 5 modes.MUD & SAND
LO OSE RO C K
MOGUL
ROCK & DIRT
ROCK
When the Crawl Control is turned on, the most suitable mode is automatically
selected according to the Crawl Control mode selected.
When all of the following conditions are satisfied, the Multi-terrain Select indica-
tor will come on, the mode select screen will be displayed on the multi-informa-
tion display, and Multi-terrain Select control will begin.
●The four-wheel drive control switch is in “L4”.
●Both Active TRAC and VSC are not off.
Selectable modes
1
2
3
4
5
ModeRoad Conditions
MUD & SANDSuitable for muddy roads, sandy roads, snow-covered roads, dirt
trails and other slippery or dirty conditions
LO OS E RO C KSuitable for slippery conditions consisting of mixtures of earth
and loose rock
MOGULSuitable for a wide range of off-road conditions, particularly very
bumpy conditions
ROCK & DIRTSuitable for very bumpy road conditions, such as mogul or rocky
roads.
ROCKSuitable for rocky terrain
Multi-terrain Select control starting conditions

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
Operate the Multi-terrain Select mode
select switch during Multi-terrain
Select control to select a mode.
Once the mode is confirmed, the mode
name will be displayed and the control
will switch.
■Automatic system cancelation
In the following situations, the Multi-terrain Se
lect indicator will go off, and Multi-terrain
Select will be canceled automatically.
●When the four-wheel drive control switch is in H4.
●When Active TRAC and VSC are off.
■When it is difficult to generate traction
MUD & SAND mode provides the largest amount of tire slippage, followed by LOOSE
ROCK, MOGUL, ROCK & DIRT and ROCK mode.
Drivability can be improved by selecting a mo de which provides a smaller amount of tire
slippage than the current mode when the amount of tire slippage is large, or conversely
selecting a mode which provides a larger amou nt of tire slippage than the current mode
when the amount of ti re slippage is small.
■When the vehicle is stuck
Switching the transfer and differential
For the operation of the following functions, refer to the following pages.
●Four-wheel drive system ( P. 3 0 5 )
●Center differential lock ( P. 3 0 6 )
■When the brake system operates continuously
The brake system may overheat. In this case, a buzzer will sound, the TRAC OFF indica-
tor will flash, and Multi-terrain Select will be temporarily inoperable. In this event, stop
the vehicle immediately in a safe place, and allow the brake system to cool down suffi-
ciently. (There is no problem wi th continuing normal driving.)
After a short time, the TRAC OFF indicator will go off, and you will be able to use Multi-
terrain Select.
■When there is a malfunction in the system
The slip indicator light will come on. Have the vehicle inspected by your Lexus dealer
immediately.
Switching modes

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Driving
■Screens when the four-wheel drive control switch is in L4
●When checking the area to the front and sides of the vehicle
●When checking the condition of the road surface under the vehicle
Front view & dual side viewFront view & dual side view (front
magnified)
 P. 3 2 7 P. 3 2 7
Under vehicle terrain view & dual
side viewUnder vehicle terrain view & dual
side view (front magnified)
 P. 3 3 1 P. 3 3 1

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LX570_OM_OM60N01U_(U)4-5. Using the driving support systems
●When checking the area to the rear of the vehicle
■Screens when the four-wheel drive control switch is in H4
●When checking the area to the front
of the vehicle (panoramic view & wide
front view)
 P. 3 3 5
●When checking the area to the sides of the vehicle (dual side view)
P. 3 3 7
Rear view & dual side viewWide rear view
 P. 3 3 3 P. 3 3 3