Page 176 of 960

1762-1. Driving procedures
LX570_OM_OM60L96U_(U) NOTICE■
If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brak e pedal to slow down the vehicle.●
It may be difficult to control your vehicle. ●
The vehicle will make abnormal sounds.●
The vehicle will behave abnormally.
Replace a flat tire with a new one. ( P. 859)■
When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause
the following serious damage to the vehicle. ●
Engine stalling ●
Short in electrical components ●
Engine damage caused by water immersion
In the event that you drive on a flooded ro ad and the vehicle is flooded, be sure to
have your Lexus dealer check the following. ●
Brake function ●
Changes in quantity and quality of oil an d fluid used for the engine, transmission,
transfer, differentials, etc. ●
Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible) and the function of all joints, bearings, etc.
Page 327 of 960

3272-4. Using other driving systems
2
When driving
LX570_OM_OM60L96U_(U) ■
Automatic leveling function
The vehicle is adjusted to a fixed height for each mode, regardless of the number of
occupants and the luggage load. ●
However the vehicle cannot be raised if the vehicle load exceeds the following
limits:
• Up to 4 occupants
* plus approximately 661 lb. (300 kg) in the normal mode
• Up to 4 occupants
* plus approximately 441 lb. (200 kg) in the high mode
* : average weight 150 lb. (68 kg) per person●
If the vehicle height cannot be raised when in the normal mode, and “LO”
appears on the display, the vehicle is loaded too heavily. Take extra care when
driving in this condition.
If the vehicle height cannot be raised ev en after unloading the vehicle, pull the
height select switch to “ ” then push to “ ”. If the vehicle height still cannot be
raised, turn the ignition off then on again, then try once more.■
When the vehicle is st opped during driving
The activation of the automatic leveling function may cause the vehicle height to
change. This is not a malfunction. ■
If the vehicle height does not change
If the vehicle is loaded too heavily, or the undercarriage has come into contact with
the road surface, the vehicle height cannot be raised/lowered. ■
In the following cases the 4-Wheel AHC will not operate ●
The brake pedal has been depressed for a few seconds or longer while the vehi-
cle is stopped. ●
Vehicle height control has not been frequently used. ●
The suspension fluid temperature is lower than -22°F (-30°C). ●
There is ice on the suspension. ●
Driving on bumpy roads which may caus e the suspension to fully elongate.●
If the steering wheel is abruptly turned more than 3/4 of a revolution with the
center differential lock system activated.
Page 745 of 960
7434-2. Maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) General maintenance
Engine compartment Items Check points
Battery • Maintenance-free ( P. 762)
Brake fluid • At the correct level? ( P. 759)
Engine coolant • At the correct level? ( P. 757)
Engine oil • At the correct level? ( P. 753)
Exhaust system • No fumes or strange sounds?
Power steering fluid • At the correct level? ( P. 761)
Radiator/condenser/hoses • Not blocked with foreign matter?
( P. 758)
Washer fluid • At the correct level? ( P. 765)Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide” or
“Owner’s Manual Supplement”. It is recommended that any problem you
notice should be brought to the attent ion of your Lexus dealer or qualified
service shop for advice.
Page 749 of 960
7474
Maintenance and care
LX570_OM_OM60L96U_(U) 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions If you perform maintenance yourself, be sure to follow the correct proce-
dures given in these sections.
Items Parts and tools
Battery condition ( P. 762) •Warm water
• Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( P. 759) • FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake
fluid)
Engine coolant level ( P. 757) • “Toyota Super Long Life Coolant”
or similar high quality ethylene gly-
col based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology.
For the U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55% coolant and
45% deionized water.
• Funnel (used only for adding cool-
ant)
Page 753 of 960
7514-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Engine compartment
Power steering fluid reservoir
( P. 761)
Engine oil level dipstick
( P. 753)
Engine oil filler cap
( P. 754)
Brake fluid reservoir
( P. 759) Fuse box ( P. 786)
Washer fluid tank ( P. 765)
Battery ( P. 762)
Cooling fans
Condenser ( P. 758)
Radiator ( P. 758)
Engine coolant reservoir
( P. 757)
Page 761 of 960
7594-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
MAX
MIN
Make sure to check the fluid type and prepare the necessary items.
■ Adding fluid
■ Refilling brake fluid
Turn the “ENGINE STAR T STOP” switch OFF.
Depress the brake pedal more than 40 times.
Remove the reservoir cap by hand . Add brake fluid up to the
“MAX” line.If you do not follow the procedure above, the reservoir may overflow.Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items Clean funnel
■
Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of brak ing efficiency. Use
only newly opened brake fluid. STEP 1
STEP 2
STEP 3
Page 762 of 960
7604-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(U) CAUTION■
When filling the reservoir
Take care because brake fluid can harm your hands or eyes and damage painted
surfaces. If fluid gets in your eyes, flush your eyes with clean water immediately. If
you still experience discomfort, see a doctor.
NOTICE■
If the fluid level is low
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs freq uent refilling, it may indicate a serious problem.
Page 826 of 960

8245-1. Essential information
LX570_OM_OM60L96U_(U) If you think something is wrong If you notice any of the following sy mptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■ Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gaug e needle continually points
higher than normal
● Engine oil pressure gauge continually points lower than normal.
● Voltmeter continually points higher or lower than normal.
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor