2018 LEXUS LX570 Owners Manual

LX570_OM_OM60Q78U_(U) 3054-5. Using the driving support systems
4
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 indicato r blinks. If the indi-
cator light does not turn off when unlocking the center diff erential, drive straight ahead
while accelerating or decelera ting, or drive in reverse.●
If the center differential lock/unlock is no t completed within 5 se conds while the cruise
control system is on, cancel the cruise control system.■
If the low speed four-wheel driv e 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, st op the vehicle completely, move the shift lever to N and
operate the switch again. ●
If the shift lever is moved before the low speed 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 po wertrain 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 co mpletely, 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 attempting 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 cent er differential lock may not be operable.
Have the vehicle inspected by your Lexus dealer immediately.

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LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
WARNING ■
While driving
Never move the four-wheel drive control switch if the wheels have lost traction. Doing
so may cause an accident result ing in death or serious injury.■
When the vehicle is parked
If the shift lever is moved be fore the low speed 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 po wertrain 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.

307
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
4
Driving
Crawl Control (with Turn Assist function) ON/OFF switch
Speed selection switch
Indicators The Crawl Control indicator is lit and
the slip indicator flashes when operat-
ing.
Multi-information display The operating status and speed select
status of the Crawl Control are shown
on the multi-information display.Allows travel on extremely rough off-ro ad surfaces at a fixed low speed with-
out pressing the accelerator or brake pedal. Minimizes loss of traction or
vehicle slip when driving on slippery ro ad surfaces, allowing for stable driving.
Crawl Control switches 1
2
3
4

308
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
The following table shows some typical
terrains and the recommended speed
modes.
This function assists cornering perfor mance in accordance with steering opera-
tion when driving through a tight corner. It maintains vehicle speed while driving
and reduces the number of turns needed to navigate a corner that requires turn-
ing the wheel in the opposite direction.
Press the Turn Assist switch while
Crawl Control is operating. Turn Assist indicator will come on.
To turn the system off, press the switch
again.Speed modes
Mode Road condition
Lo Rock, mogul (downhill) and gravel (down-
hill)
Lo-Med
Mogul (uphill)
Med
Snow, mud, gravel (uphill), sand, dirt,
mogul (uphill) and grassMed-Hi
Hi
Turn Assist function 1
2
3
4
5

LX570_OM_OM60Q78U_(U) 3094-5. Using the driving support systems
4
Driving 
Crawl Control
Press the ON/OFF switch while Crawl Cont rol 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 Co ntrol indicator will flash until the system
has turned off completely, and a messag e stating that Crawl Control has been
turned off will be displayed on the multi- information display fo r 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 ha s been turned off will be di splayed 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 ge ar other than P, R or N.●
The steering wheel is turned very far.When the system is turned off

310
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems■
Automatic system cancelation 
Crawl Control
In the following situations, the buzzer will sound intermittently an d 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 th e Turn Assist function is in use), and a message
stating that Crawl Cont rol has been turned off will be di splayed 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 inte rmittently 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 Assi st function has been turned off will be dis-
played on the multi-informatio n 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 available when drivin g uphill at a co nstant 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. 313)

LX570_OM_OM60Q78U_(U) 3114-5. Using the driving support systems
4
Driving ■
Sounds and vibrations caused by the Crawl Control system●
A sound may be heard from the engine compartment when the engine is started or just
after the vehicle begins to move. This soun d does not indicate that a malfunction has
occurred in Crawl Control system. ●
Either of the following conditions may occu r when the Crawl Contro l system is operat-
ing. None of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard afte r the vehicle comes to a stop.■
When there is a malfunction in the system
Warning lights and/or warnin g messages will turn on. ( → P. 520, 528)
WARNING ■
When using Crawl Control and Turn Assist function
Do not rely solely on the Crawl Control and Turn Assist function. This function does not
extend the vehicle’s performance limitations . Always thoroughly check the road condi-
tions, and drive safely. ■
These conditions may cause the system not to operate properly
When driving on the following surfaces, the sy stem may not be able to maintain a fixed
low speed, which may re sult in an accident:●
Extremely steep inclines. ●
Extremely uneven surfaces. ●
Snow-covered roads, or other slippery surfaces.
NOTICE ■
When using Turn Assist function
The Turn Assist function is a function to assist turning performance when driving off
road. The function may be less ef fective on paved road surfaces.

312
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
Multi-terrain Select 
When the Crawl Control is turned off
Select a mode that most closely matche s the type of terrain on which you are
driving from among 5 modes.
Brake control can be optimized in accordance with the selected mode.
When the Crawl Control is turned on
A mode which matches the road conditions is automatically selected by
depressing the accelerator pedal (AUTO mode).
Multi-terrain Select mode selector
switch
Multi-terrain Select indicator
Multi-information display
Displays status information including
operating status and road type
selection.Multi-terrain Select is a system that he lps drivability in off-road situations.
Multi-terrain Select switch/indicators 1
2
3