2015 LEXUS LX570 engine overheat

3522-4. Using other driving systems
LX570_OM_OM60L96U_(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 assi st control, Crawl 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-enable 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 of f, the systems will
not turn on even when vehicle speed increases. ■
If the brake system overheats
The brake system may overheat. In this ca se, a buzzer will sound, and the “TRAC
OFF” will be displayed on the multi-inform ation display, and Active TRAC and hill-
start assist control will be temporarily inoperable. 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-information display goes off. (There is no prob-
lem with continuing normal driving.)

3942-5. Driving information
LX570_OM_OM60L96U_(U) ● Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turn s, and slow down before making a
turn.
● Note that when making a turn, the trailer wheels will be closer than the
vehicle wheels to the inside of th e turn. Compensate 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 can 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 efficie ncy 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 desc ending steep or long downhill
grades.
● Avoid holding the brake pedal down too long or applying the brakes
too frequently. This could cause the brakes to overheat and result in
reduced braking efficiency.
● Due to the added load of the trail er, your vehicle’ s engine may over-
heat on hot days (at temperatures over 85°F [30°C]) when driving up
a long or steep grade. If the engine coolant temperature gauge indi-
cates overheating, immediately turn off the air conditioning (if in use),
pull your vehicle off the road and stop in a safe spot. (  P. 878)

7043-8. Other interior features
LX570_OM_OM60L96U_(U) Cigarette lighter ■
The cigarette lighter can be used when
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON
mode.
CAUTION■
To avoid burns or fires ●
Do not touch the metal parts of the cigarette lighter. ●
Do not hold the cigarette lighter down. It could overheat and cause a fire. ●
Do not insert anything other than the cigarette lighter into the outlet. Push the front part of the lid to
open, and push the cigarette
lighter down. The cigarette lighter will pop up
when it is ready for use.

7083-8. Other interior features
LX570_OM_OM60L96U_(U) CAUTION■
Burns ●
Only appropriately qualified and capable non-impaired persons should operate
the vehicle. However, care should be taken to prevent injury if anyone in the fol-
lowing categories comes into contact with the steering wheel when the heated
steering wheel is on:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs,
cold remedies, etc.)●
Do not use the heated steering wheel more than necessary. Doing so may cause
minor burns or overheating.
NOTICE■
To prevent battery discharge
Turn the switch off when the engine is not running.

7113-8. Other interior features
3
Interior features
LX570_OM_OM60L96U_(U) ■
The seat heaters and ventilators can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode. ■
Replacing the air filters
Filters are installed in the seat ventilators. For replacement of the filters, contact
your Lexus dealer.
CAUTION■
Burns ●
Use caution when seating the following persons in a seat with the seat heater on
to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or dr ugs that induce sleep (sleeping drugs,
cold remedies, etc.)●
Do not cover the seat with anything when using the seat heater. Using the seat
heater with a blanket or cushion increases the temperature of the seat and may
lead to overheating. ●
Do not use the seat heater more than necessary. Doing so may cause minor
burns or overheating.
NOTICE■
To prevent damage to the seat heaters and ventilators
Do not put heavy objects that have an unev en surface on the seat and do not stick
sharp objects (needles, nail s, etc.) into the seat.■
To prevent battery discharge
Turn the seat heaters an d ventilators off when the engine is not running.

When trouble arises
5
815
LX570_OM_OM60L96U_(U) 5-1. Essential information
Emergency flashers ............... 816
If your vehicle needs to be
towed ....................................... 817
If you think something is
wrong ..................................... 824
Fuel pump shut off
system .................................... 825 5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... ................................. 826
If a warning message is
displayed................................ 837
If you have a flat tire .............. 854
If the engine will not
start ......................................... 868
If the shift lever cannot be
shifted from “P”.................... 870
If you lose your keys ............... 871
If the electronic key does
not operate properly ......... 872
If the battery is
discharged ............................ 875
If your vehicle overheats ..... 878
If the vehicle becomes
stuck......................................... 881
If your vehicle has to be
stopped in an
emergency............................ 883

5
When trouble arises
8795-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) If your vehicle overheats
Correction procedures
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks.
Radiator
Cooling fans If a large amount of coolant leaks,
immediately contact your Lexus
dealer.The following may indicate that your vehicle is overheating.
● The needle of the engine coolant temperature gauge (  P. 192)
enters the red zone or a loss of engine power is experienced.
(For example, the vehicle speed does not increase.)
● Steam is coming from under the hood. STEP 1
STEP 2
STEP 3

944Alphabetical index
LX570_OM_OM60L96U_(U) Cleaning
Exterior ................................................... 734
Interior ......................................................737
Seat belts................................................ 738
Clock .......................................................... 415
Condenser ..............................................758
Console box ........................................... 692
Cool box...................................................699
Cooling system
Engine overheating ..........................878
Crawl Control........................................ 337
Cruise control ............................ 232, 236
Cup holder .............................................. 694
Curtain shield airbags.......................... 126
Customizable features ........................ 912
Daytime running light system ............. 211
Defogger
Rear window ........................................460
Side mirror ............................................460
Dimension ............................................... 886
Dinghy towing ......................................... 401
Display
Crawl Control display ................... 337
Dynamic radar cruise control .... 236
Intuitive parking assist system
display .................................................. 252
Multi-information display...............200
Shift position and shift
range ...........................................184, 186
Trip information ....................................201
Warning message............................. 837
Do-it-yourself maintenance ............. 747
Door courtesy lights
Door courtesy lights........................ 686
Wattage................................................. 896 Door lock
Back door ................................................ 56
Side door...................................................52
Wireless remote control key...........49
Doors
Door glasses..........................................108
Door lock ................................ 35, 49, 52
Side mirrors............................................ 104
Driver’s seat belt reminder
light.......................................................... 829
Driving
Break-in tips........................................... 167
Correct posture................................... 124
Off-road precautions...................... 363
Procedures............................................. 166
Winter driving tips .............................376
Driving position memory...................... 83
DVD player............................................. 507
Dynamic radar cruise control ......... 236
Eco driving ............................................... 168
EDR ............................................................... 25
Electronic key
If your electronic key battery is
discharged ........................................ 784
Emergency flashers .............................. 816
Emergency, in case of
If the electronic key does not
operate properly.............................872
If the engine will not start ...............868
If the shift lever cannot be
shifted from “P” ............................... 870
If the vehicle has discharged
battery ................................................. 875
If the warning buzzer
sounds ................................................. 826D
E