engine LEXUS LX570 2014 Owners Manual

3492-4. Using other driving systems
2
When driving
LX570_OM_OM60L21U_(U) To disable Active TRAC and/or VSC and Trailer Sway Control
If the vehicle gets stuck in fresh snow or mud, Active TRAC, VSC and
Trailer Sway Control 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.
■ Turning off Active TRAC
Quickly push and release the but-
ton to turn off Active TRAC. The “TRAC OFF” will be shown on
the multi-information display.
This mode can be used when the
transfer mode is H4.
Push the button again to turn the
system back on.
■ Turning off Active TRAC, VSC and Trailer Sway Control
Push and hold the button for more
than 3 seconds while the vehicle is
stopped to turn off Active TRAC,
VSC and Trailer Sway Control The VSC OFF indicator light will
come on and the “TRAC OFF” will
be shown on the multi-information
display.
Push the button again to turn the
system back on.

3502-4. Using other driving systems
LX570_OM_OM60L21U_(U) ■
When the message is displayed on the multi-information display showing that
TRAC has been disabled even if the VSC OFF switch has not been pressed
Active TRAC, hill-start assist control, Cr awl Control cannot be operated. Contact
your Lexus dealer. ■
Automatic reactivation of Active TRAC, VSC and Trailer Sway Control
Turning the “ENGINE START STOP” switch off after turning off the Active TRAC
and VSC systems will auto matically re-e nable them.■
Automatic Active TRAC reactivation
If only the Active TRAC system is turned off, the Active TRAC system will turn on
when vehicle speed increases. ■
Automatic Active TRAC, VSC and Trailer Sway Control reactivation
If the Active TRAC, VSC and Trailer Sway Control are turned off, the systems will
not turn on even when vehicle speed increases. ■
If the brake system overheats
The brake system may overheat. In this case, a buzzer will sound, and the “TRAC
OFF” will be displayed on th e multi-information display, and Active TRAC and hill-
start assist control will be temporarily inop erable. In this event, stop the vehicle
immediately in a safe place, and allow the brake system to cool down sufficiently
until the “TRAC OFF” on the multi-informatio n display goes off. (There is no prob-
lem with continuing normal driving.)

3512-4. Using other driving systems
2
When driving
LX570_OM_OM60L21U_(U) ■
Sounds and vibrations caused by the Multi Terrain ABS, brake assist, Active
TRAC, VSC, Trailer Sway Control, hill-start assist control and VGRS ●
A sound may be heard from the engi ne compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate that
a malfunction has occurred in any of these systems. ●
Any of the following conditions may occur when the above systems are operat-
ing. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the Multi Terrain ABS is activated.
• The brake pedal may move down slightly after the Multi Terrain ABS is acti-
vated.■
Hill-start assist control is operational when ●
The shift lever is in “D” or “S”. ●
The brake pedal is not depressed.■
VGRS is disabled in the following situations ●
During stopping or the st eering wheel has been moved for a long time while
driving at lower speeds. ●
After the engine is restarted at less than -22°F (-30°C). ●
If you disconnect the battery with the steering wheel turned, the center position
of the steering wheel could be slightly and temporary changed. To initialize the
VGRS, drive for a short while.

3652-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) NOTICE■
To prevent the water damage
Take all necessary safety measures to en sure that water dama ge to the engine or
other components does not occur. ●
Water entering the engine air intake will cause severe engine damage. ●
Water entering the automatic transmission will cause deterioration in shift quality,
locking up of your transmission accompanied by vibration, and ultimately dam-
age. ●
Water can wash the grease from wheel bearings, causing rusting and premature
failure, and may also enter the differentials, transmission and transfer case, reduc-
ing the gear oil’s lubricating qualities.■
When you drive through water
If driving through water, such as when crossing shallow streams, first check the
depth of the water and the bottom of the river bed for firmness. Drive slowly and
avoid deep water. ■
Inspection after off-road driving ●
Sand and mud that has accumulated in brake drums and around brake discs may
affect braking efficiency and may damage brake system components. ●
Always perform a maintenance inspection after each day of off-road driving that
has taken you through rough terrain, sand, mud, or water. For scheduled mainte-
nance information, refer to the “Warra nty and Services Guide/Owner’s Manual
Supplement/Schedul ed Maintenance”.

3742-5. Driving information
LX570_OM_OM60L21U_(U) Winter driving tips Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the ve hicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
● Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspec t the condition of the battery.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires. Ensure that all tires are the same size and brand, and that chains match
the size of the tires.

3772-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) CAUTION■
Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or serious
injury. ●
Use tires of the size specified for your vehicle. ●
Maintain the recommended level of tire inflation pressure. ●
Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used. ●
Snow tires should be installed on all wheels.■
Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury. ●
Do not drive in excess of the speed limit specified for the tire chains being used or
30 mph (50 km/h), whichever is lower. ●
Avoid driving on bumpy road surfaces or over potholes. ●
Avoid sudden acceleration, abrupt steeri ng, sudden braking and shifting opera-
tions that cause sudden engine braking. ●
Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.■
When installing tire chains
Turn off the vehicle height control.
The vehicle height may change due to the automatic leveling function and you may
catch part of your body in the vehicle, resulting in an accident. (  P. 3 1 8 )

3892-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) Connecting and disconnecting a trailer
Stop your vehicle and a trailer in line and perform the following:
● Connecting a trailer
Put the 4-Wheel AHC in the “LO” (low) mode.
Turn off the “ENGINE START STOP” switch or the 4-Wheel
AHC.
Connect a trailer.
Turn on the “ENGINE START STOP” switch or the 4-Wheel
AHC.
Select the “N” (normal) mode with the height select switch. When a vehicle loaded with four occupants tows a trailer of about
4000 lb. (1800 kg) with more than about 400 lb. (180 kg) tongue
load, the normal mode may not be se lected. However, there is no prob-
lem to continue normal driving. Dr ive with sufficient care because of
large load. STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

3902-5. Driving information
LX570_OM_OM60L21U_(U) ● Disconnecting a trailer
Put the 4-Wheel AHC in the “LO” (low) mode. (Make sure the
vehicle height is in the “LO” mode by pulling the switch to “  ” on
the height select switch.)
Turn off the “ENGINE START STOP” switch or the 4-Wheel
AHC.
Set the supporting leg of a trail er on the ground and raise the
hitch by 4 in. (100 mm).
Turn on the “ENGINE START STOP” switch or the 4-Wheel
AHC.
Wait for about 20 seconds until th e rear vehicle height is lowered
by the automatic leveling function.
Make sure the hitch is disconnected. If not, raise the hitch higher
and repeat steps 2 through 5.
Move the vehicle forward in the “LO” mode where the hitch does
not touch anything in the “N” (normal) mode.
Put the 4-Wheel AHC in the “N” mode. STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
STEP 7
STEP 8

3922-5. Driving information
LX570_OM_OM60L21U_(U) ● Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before making a
turn.
● Note that when making a turn, the tr ailer wheels will be closer than the
vehicle wheels to the inside of the turn. Co mpensate by making a
wider than normal turning radius.
● Slow down before making a turn, in crosswinds, on wet or slippery sur-
faces, etc.
Increasing vehicle speed ca n destabilize the trailer.
● Take care when passing other vehi cles. Passing requires considerable
distance. After passing a vehicle, do not forget the length of your
trailer, and be sure you have plenty of room before changing lanes.
● To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not put the transmission in “D”.
If in the S mode, the transmission shift range position must be in 5 or
lower.
● Instability happens more frequently when descending steep or long
downhill grades. Before descending, slow down and downshift. Do not
make sudden downshifts while descending steep or long downhill
grades.
● Avoid holding the brake pedal down too long or applying the brakes
too frequently. This could cause th e brakes to overheat and result in
reduced braking efficiency.
● Due to the added load of the trailer, your vehicle’s engine may overheat
on hot days (at temperatures over 85°F [30°C]) when driving up a
long or steep grade. If the eng ine coolant temperature gauge indicates
overheating, immediately turn off th e air conditioning (if in use), pull
your vehicle off the road and stop in a safe spot. (  P. 873)

3932-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) ● Always place wheel bloc ks under both the vehi cle’s and the trailer’s
wheels when parking. Apply the pa rking brake firmly, and put the
transmission in “P”. Avoi d parking on a slope, bu t if unavoidable, do so
only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle’s and
trailer’s wheels.
When the wheel blocks are in pl ace, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into “P” and turn off the engine.
● When restarting after parking on a slope:
With the transmission in “P”, start the engine. Be su re to keep the
brake pedal pressed.
Shift into “D” or “R” (if reversing).
Release the parking brake and br ake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks. STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3
STEP 4