engine overheat LEXUS LX570 2016 Owners Manual

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LX570_OM_OM60N01U_(U)
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6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 458
Cleaning and protecting the vehicle inte rior.................... 461
6-2. Maintenance Maintenance requirements ............................ 464
General maintenance.............. 466
Emission inspection and maintenance (I/M)
programs .................................... 469
6-3. Do-it-yourself maintenance Do-it-yourself service precautions.................................470
Hood ................................................ 472
Engine compartment ................473
Tires.................................................. 486
Tire inflation pressure ............... 495
Wheels ........................................... 499
Air conditioning filter ................ 501
Electronic key battery.............. 503
Checking and replacing fuses..............................................505
Light bulbs ....................................508 7-1. Essential information
Emergency flashers ....................514
If your vehicle has to be stopped in an emergency......515
7-2. Steps to take in an emergency If your vehicle needs to be towed..................................516
If you think something is wrong........................................... 522
Fuel pump shut off system ...... 523
If a warning light turns on or a warning buzzer
sounds ..........................................524
If a warning message is displayed .................................... 532
If you have a flat tire .................. 536
If the engine will not start .........547
If the shift lever cannot be shifted from P ........................... 549
If the electronic key does not operate properly ............. 550
If the vehicle battery is discharged ................................. 553
If your vehicle overheats ......... 556
If the vehicle becomes stuck ............................................. 559
6Maintenance and care7When trouble arises

15Pictorial index
LX570_OM_OM60N01U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 231
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 384
To prevent freezing (windshield wiper de-icer) . . . . . . . . . . . . . . . . . . . . . . . . . .P. 407
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 459
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 239
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 239
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 564
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 486
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 569
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 384
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . P. 486
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 536
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 472
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 472
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 564
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 556
Camera*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 31 8
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Parking lights/daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P . 216
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 220
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 379
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21 0
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
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Light bulbs of the exterior lights for driving
(Replacing method: P. 508, Watts: P. 570)
*: If equipped
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LX570_OM_OM60N01U_(U)2. Instrument cluster
■The meters and display illuminate when
The engine switch is in IGNITION ON mode.
■The brightness of the instrument panel lights
When the tail lights are turned on, the meter’
s brightness will be reduced slightly unless
the meter brightness leve l adjustment is set to the brightest setting.
If the tail lights are turned on when the surroundings are dark, the meter’s brightness will
be reduced slightly. However, when the surroundings are bright, such as during the day-
time, the meter’s brightness will not be reduced even if the tail lights are turned on.
■Customization
The meter display can be customized on the multi-information display. (P. 585)
WA R N I N G
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear number
appearing on the display. This lag could cau se the driver to downshift again, causing
rapid and excessive engine braking and po ssibly an accident resulting in death or
injury.
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indicates
the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the red
zone (H). In this case, immediately stop the vehicle in a safe place, and check the
engine after it has cooled completely. ( P. 5 5 6 )
■Vo l t m e t e r
When the voltmeter indicates 19 V or higher or 9 V or lower while the engine is run-
ning, there may be a battery or charging system malfunction. Have the vehicle
inspected at your Lexus dealer.
■Engine oil pressure gauge
When the value of the engine oil pressure gauge drops while the engine is running,
stop the vehicle in a safe place immediat ely and check the amount of engine oil.
(  P. 4 7 5 )
When the oil pressure drops even though th e engine oil amount has not decreased, or
if the oil pressure does not increase when engine oil is added, contact your Lexus
dealer, as there may be a proble m with the lubrication system.

LX570_OM_OM60N01U_(U)
1774-1. Before driving
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Driving
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running. This
prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing th e accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your righ t foot. Depressing the brake pedal using
your left foot may delay response in an emergency, resulting in an accident.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the engine. Turning the engine off while driving
will not cause loss of steering or braking co ntrol, but the power assist to these systems
will be lost. This will make it more difficul t to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 5 1 5
●Use engine braking (downshift) to maintain a safe speed when driving down a steep
hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. ( P. 2 1 0 )
●Do not adjust the positions of the steering wh eel, the seat, or the inside or outside rear
view mirrors while driving.
Doing so may result in a loss of vehicle control.
●Always check that all passengers’ arms, heads or other parts of their body are not
outside the vehicle.
●Do not drive in excess of the speed limit. Ev en if the legal speed limit permits it, do not
drive over 85 mph (140 km/h) unless your vehicle has high-speed capability tires.
Driving over 85 mph (140 km/h) may result in tire failure, loss of control and possible
injury. Be sure to consult a tire dealer to determine whether the tires on your vehicle
are high-speed capability tires or not before driving at such speeds.
●When crossing rivers, turn off height control after putting the vehicle height in high
mode, and drive at 18 mph (30 km/h) or less. Otherwise the vehicle height may
change due to the automatic leveling fu nction, resulting in an accident. (P. 2 9 7 )

LX570_OM_OM60N01U_(U)
1794-1. Before driving
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Driving
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P or N, the vehicle may accelerate suddenly
and unexpectedly, causing an accident.
●In order to prevent accidents due to the vehicle rolling away, always keep depressing
the brake pedal while the engine is running, and apply the parking brake as neces-
sary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed.
●Avoid revving or racing the engine. Running the engine at high speed while the vehi-
cle is stopped may cause the exhaust system to overheat, which could result in a fire if
combustible material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic mate- rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the
vehicle, and may also cause a short circuit in the vehicle’s electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if the curved glass is coated with a metallized
film such as a silver-colored one. Reflected sunlight may cause the glass to act as a
lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P, stop the engine and lock the
vehicle.
Do not leave the vehicle unattend ed while the engine is running.

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LX570_OM_OM60N01U_(U)4-1. Before driving
●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 traile
r wheels will be closer than the vehicle
wheels to the inside of the turn. Comp ensate by making a wider than normal
turning radius.
●Slow down before making a turn, in crosswinds, on wet or slippery surfaces,
etc.
Increasing vehicle speed can destabilize the trailer.
●Take care when passing other vehicles. Passing requires considerable dis-
tance. 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 performance
when using engine braking, do not put the transmission in D.
If in the S mode, the transmission shift range position must be in 6 or lower.
( P. 2 1 0 )
●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 fre-
quently. This could cause the brakes to overheat and result in reduced braking
efficiency.
●Due to the added load of the trailer, yo ur 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 engine coolant temperat ure gauge indicates overheating, imme-
diately turn off the air cond itioning (if in use), pull your vehicle off the road and
stop in a safe spot. ( P. 5 5 6 )

208
LX570_OM_OM60N01U_(U)4-2. Driving procedures
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if the
engine is turned on and off repeatedly in a sh
ort period of time. In this case, refrain from
running the engine. After about 10 seconds, the steering lock motor will resume func-
tioning.
■When “Smart Access System Malfunction See Owner’s Manual” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer,
immediately.
■If the electronic key battery is depleted
 P. 5 0 3
■If the smart access system with push-butto n start has been deactivated in a customized
setting
 P. 5 5 0
A message will be displayed on the multi-infor-
mation display.
Check that the shift lever is set in P. Press the
engine switch while turning the steering wheel
left and right.
WA R N I N G
■When starting the engine
Always start the engine while
sitting in the driver’s seat. Do not depress the accelerator
pedal while starting the engine under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle is moving, do not lock or open the doors until
the vehicle reaches a safe and complete stop. Activation of the steering lock in this cir-
cumstance may lead to an accident, re sulting in death or serious injury.
■Stopping the engine in an emergency
●If you want to stop the engine in an emergency while driving the vehicle, press and
hold the engine switch for more than 2 seco nds, or press it briefly 3 times or more in
succession. ( P. 5 1 5 )
However, do not touch the engine switch while driving except in an emergency. Turn-
ing the engine off while driving will not cause loss of steering or braking control, but
the power assist to these systems will be lost . This will make it more difficult to steer
and brake, so you should pull over and stop th e vehicle as soon as it is safe to do so.
●If the engine switch is operated while the vehicle is running, a warning message will be
shown on the multi-information display and a buzzer sounds.
●When restarting the engine after it was turn ed off while driving, shift the shift lever to
N and press the engine switch.

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LX570_OM_OM60N01U_(U)4-2. Driving procedures
Sets the parking brake
The parking brake indicator light will
come on. (
P. 2 1 8 )
Pull and hold the parking brake switch if
an emergency occurs and it is necessary
to operate the parking brake while driv-
ing.
Releases the parking brake
Operate the parking brake switch while
depressing the brake pedal. Make sure
that the parking brake indicator light
goes off.
■Parking brake operation
●When the engine switch is not in IGNITION ON mode, the parking brake cannot be
released using the pa rking brake switch.
●When the engine switch is not in IGNI TION ON mode, automatic mode (automatic
brake setting and releas ing) is not available.
■If “Parking Brake Overheated Parking Brake Unavailable” is displayed on the multi-
information display
If the parking brake is operated repeatedly over a short period of time, the system may
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the engine switch mode, the parking brake indicator light will come on
and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
●When the engine switch is turned off with the parking brake set, the parking brake indi-
cator light will stay on for about 15 seco nds. This does not indicate a malfunction.
■Changing the mode
When changing the automatic mode on/off , the message will be shown on the multi-
information display and the buzzer sounds.
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven with the parking brake engaged. “Release
Parking Brake” is displayed on the multi-information display.
Manual mode
U.S.A. Canada
1
2

LX570_OM_OM60N01U_(U)
2374-3. Operating the lights and wipers
4
Driving
■The rear window wiper and washer can be operated when
The engine switch is in IGNITION ON mode.
■If no washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the washer fluid
reservoir.
■Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more time
after a short delay to prevent dripping.
■Effect of vehicle and shift position on wiper operation
Ty p e A
●With selected, wiper operation will be switched from low speed to intermittent
wiper operation only the vehicle is stationary.
●With or selected, the rear window wiper sweeps once when you shift the
shift lever to R while windshield wipers oper ating or with 17 seconds from their deacti-
vation.
Ty p e B
●With selected, wiper operation will be switched from low speed to intermittent
wiper operation only the vehicle is stationary.
●With or selected, the rear window wiper sweeps once when you shift the
shift lever to R while windshield wipers oper ating or with 17 seconds from their deacti-
vation.
■Customization
Settings (e.g. drip prevention function) can be changed.
(Customizable features P. 585)
NOTICE
■When the rear window is dry
Do not use the wiper, as it may damage the rear window.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.

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LX570_OM_OM60N01U_(U)4-3. Operating the lights and wipers
Headlight cleaner switch
Press the switch to clean the headlights.
■The headlight cleaners can be operated when
The engine switch is in IGNITION ON mode
and the headlight switch is turned on.
: If equipped
Washer fluid can be sprayed on the headlights.
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.