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3282-4. Using other driving systems
LX570_OM_OM60L96U_(U) ■
Cold weather operation
It may take longer for the vehicle height to change if the suspension fluid tempera-
ture drops below 5°F (-15°C).
The 4-Wheel AHC does not operate when the suspension fluid temperature drops
below -22°F (-30°C). ●
In this case, even if the height select switch is pressed, the vehicle height will not
change. Once the vehicle has been driven for a short time and the suspension
fluid has been warmed to within normal operating limits, the 4-Wheel AHC will
begin operating and the vehicle height wi ll automatically change to the selected
mode. ●
When the suspension fluid is around -22°F (-30°C), the vehicle height may not
be able to be raised, even if the 4-Wheel AHC is operating. In this case, pull the
height select switch to “ ” then push to “ ” after driving for a short time longer
to select the desired vehicle height.■
Parking and stopping tips ●
If you immediately stop the engine after off-road driving, the vehicle height may
gradually lower. When parking, make su re there is nothing under the vehicle
that may come in contact with the underbody. The vehicle will return to the set
height when the engine is started. ●
The vehicle height may change as the temperature changes when the engine is
stopped. The vehicle will return to the set height when the engine is started.■
Propeller shaft noise
If the vehicle height is adjusted on a slope, or with the shift lever in a position other
than “P” or “N” while the vehicle is stop ped, you may hear a sound caused by the
expansion and contraction of the propeller shaft. This does not indicate a malfunc-
tion. ■
4-Wheel AHC failure warning
If a malfunction occurs in the 4-Wheel AHC, normal mode is automatically
selected. However, the system may not sw itch to normal mode depending on the
location of the malfunction.
The warning message is displayed on the multi-information display, and the 4-
Wheel AHC cannot be activated until the malfunction is corrected.
Stop the engine and start it again. If th e warning message turns off, the system is
operating correctly. If the warning message continues to be displayed, have the
vehicle checked at your Lexus dealer as soon as possible.
Page 337 of 960
3372-4. Using other driving systems
2
When driving
LX570_OM_OM60L96U_(U) Crawl Control (with Turn Assist function) Allows travel on extremely rough off-road surfaces at a fixed low speed
without pressing the accelerator or br ake pedal. Minimizes loss of traction
or vehicle slip when driving on slippery road surfaces, allowing for stable
driving.
■ Crawl Control switches
ON/OFF switch
Speed selection switch
Multi-information display The operating status and speed
select status of the Crawl Con-
trol are shown on the multi-
information display.
Indicators The Crawl Control indicator is
lit and the slip indicator flashes
when operating.
Page 340 of 960
3402-4. Using other driving systems
LX570_OM_OM60L96U_(U) When the system is turned off
Crawl Control
Press the ON/OFF switch while Crawl Control is operating. If the
switch is turned off, th e 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 turn ed off completel y, and a message
stating that Crawl Control has been turned off will be displayed on the
multi-information displa y for several seconds.
When turning off Crawl Control while driving, st op 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 indicator will go off, and a
message stating that the Turn Assist function has been turned off will
be displayed on the multi-information display for several seconds.
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3412-4. Using other driving systems
2
When driving
LX570_OM_OM60L96U_(U) ■
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.■
Automatic system cancelation
Crawl Control
In the following situations, the buzzer will sound intermittently and Crawl Control
will be canceled automatically. In this ev ent, 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 off will be dis-
played 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 au tomatically. In this event, the Turn Assist
indicator will go off, and a message statin g that the Turn Assi st function has been
turned off will be displayed on the multi-information display for several seconds.
Page 342 of 960

3422-4. Using other driving systems
LX570_OM_OM60L96U_(U) ■
Function limitations
Crawl Control ●
In the following situations, brake control can be used to drive downhill at a con-
stant speed. However, engine control is not available when driving uphill at a
constant speed.
• When switched to second start mode. ●
In the following situation, engine contro l and 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 function 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
malfunction notification will be displaye d on the multi-information display, the
Crawl Control indicator will go off, and Crawl Control will be temporarily inop-
erable as a result of the brake system overheating. In this event, stop the vehicle
immediately in a safe place, and allow th e brake system to cool down sufficiently
until the “TRAC OFF” on the multi-information display goes off. (In the mean-
time, 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 malfunction notification will be dis-
played on the multi-informat ion display as a result of the automatic transmission
system overheating. Stop the vehicle in a safe place until the display goes off.
Page 344 of 960
3442-4. Using other driving systems
LX570_OM_OM60L96U_(U) Multi-terrain Select Multi-terrain Select is a system that as sists drivability in off-road situations.
Select a mode that most clos ely matches the type of terrain on
which you are driving from among 5 modes.
Brake control can be optimized in accordance with the selected
mode.
Multi-terrain Select mode
select switch
Multi-information display
Displays status information
including operating status
and road type selection.
Multi-terrain Select indicator
Page 346 of 960
3462-4. Using other driving systems
LX570_OM_OM60L96U_(U) ■ Multi-terrain Select control starting conditions
When all of the following condit ions are satisfied, the Multi-terrain
Select indicator will come on, th e mode select screen will be dis-
played on the multi-information 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.
● Crawl Control is off.
■ Switching modes
Operate the Multi-terrain
Select mode select switch dur-
ing Multi-terrain Select control
to select a mode. Once the mode is confirmed,
the mode name will be dis-
played and the control will
switch.
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3472-4. Using other driving systems
2
When driving
LX570_OM_OM60L96U_(U) Statement on the multi-information display
Mode selection
Display the Multi-terrain Select
mode.
The display switches in accor-
dance with the pressing of the
DISP switch ( P. 201) or the
conditions of each system.
Mode status
Display the name of the
selected mode.■
Automatic system cancelation
In the following situations, the Multi-terrain Select 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 Crawl Control is on.■
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 mode 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 amount of tire slippage than
the current mode when the amount of tire slippage is small.