2016 LEXUS LS460L overheating

1282. Instrument cluster
LS460/LS460L_GE (OM50G06E)
■Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or
the display may take longer than normal to change.
●When stopped, or driving at low speeds (less than 20 km/h [12 mph])
●When the outside temperature has changed suddenly (at the entrance/exit of a
garage, tunnel, etc.)
■Customization
Settings (e.g. on/off operation of ECO lamp) can be changed.
(Customizable features P. 668)
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates 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. 641)

2544-1. Before driving
LS460/LS460L_GE (OM50G06E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever or
depress the accelerator pedal, this could cause an accident or fire due to engine
overheating. Additionally, if the vehicle is parked in a poorly ventilated area,
exhaust gases may collect and enter the vehicle, leading to death or a serious
health hazard.
■When braking
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause one side
of the vehicle to brake differently than the other side. Also, the parking brake may
not securely hold the vehicle.
●If the electronically controlled brake system does not operate, do not follow other
vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be depressed
more firmly than usual. Also, the braking distance will increase. Have your brakes
fixed immediately.
●The brake system consists of 2 or more individual hydraulic systems; if one of the
systems fails, the other(s) will still operate. In this case, the brake pedal should be
depressed more firmly than usual and the braking distance will increase. Have
your brakes fixed immediately.
■If the vehicle becomes stuck (AWD models)
Do not spin the wheels excessively when any of the tires is up in the air, or the vehi-
cle is stuck in sand, mud, etc. This may damage the driveline components or propel
the vehicle forward or backward, causing an accident.

2614-2. Driving procedures
4
Driving
LS460/LS460L_GE (OM50G06E)
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the engine switch will automatically turn off.
■Electronic key battery depletion
 P. 166
■Conditions affecting operation
 P. 163
■Notes for the entry function
 P. 164
■If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 104)
Contact your Lexus dealer.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering
wheel will be locked due to the steering lock function. Operating the engine switch
again automatically cancels the steering lock.
■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 short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
The green indicator light on the engine switch
will flash and a message will be shown on the
multi-information display. Press the engine
switch again while turning the steering wheel
left and right.

2804-2. Driving procedures
LS460/LS460L_GE (OM50G06E)
The parking brake is set or released automatically according to shift lever
operation.
Turns automatic mode on/off
When automatic mode is turned on,
the indicator on the switch comes
on and it operates in the following
manner:
●When the shift lever is moved into
P, the parking brake will be set.
●When the shift lever is moved out
of P, the parking brake will be
released.
Operate the shift lever with the brake
pedal depressed.
■Parking the vehicle
 P. 246
■Parking brake operation
●When the engine switch is not in IGNITION ON mode, the parking brake cannot
be released using the parking brake switch.
●When the engine switch is not in IGNITION ON mode, automatic mode (auto-
matic brake setting and releasing) is not available.
●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 operat-
ing 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.
Automatic mode

4825-6. Other interior features
LS460/LS460L_GE (OM50G06E)
CAUTION
■Burns/excessive cooling
●Use caution when seating the following persons in a seat to avoid the possibility of
burns or excessive cooling:
• Babies, small children, elderly persons, sick persons and persons with a physi-
cal disability
• Persons who have sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs which induce sleep, such as sleeping
drugs and cold remedies
●Do not cover the seat with anything when using the climate control seat or seat
heater. Using the climate control seat or seat heater with a blanket or cushion
may increase or decrease the temperature of the seat, resulting in overheating or
overcooling.
●Do not use the climate control seat or seat heater more than necessary. Doing so
may cool the occupants excessively or may cause minor burns or overheating.
NOTICE
■To prevent damage to the climate control seat and seat heater
Do not put heavy objects that have an uneven surface on the seat and do not stick
sharp objects, such as needles and nails, into the seat.
■To prevent the battery from being discharged
Do not leave the system on longer th an necessary when the engine is off.

6417-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
●The needle of the engine coolant temperature gauge ( P. 125) enters
the red zone or a loss of engine po wer is experienced. (For example,
the vehicle speed does not increase.)
●Steam comes out from under the hood.
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 (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

691Alphabetical index
LS460/LS460L_GE (OM50G06E)
Climate control seat ............................ 478
Climate control seat filter................... 481
Clock ......................................................... 469
Clock light ............................................... 447
Coat hooks .............................................. 496
Coin holder ............................................. 454
Condenser .............................................. 549
Console box ........................................... 457
Cool box................................................... 459
Coolant ..................................................... 547
Capacity ................................................ 656
Checking ............................................... 547
Preparing and checking
before winter ....................................399
Cooling system ...................................... 547
Engine overheating ............................641
Cruise control
Cruise control .................................... 309
Dynamic radar cruise control .......313
Dynamic radar cruise control
with full-speed range.................... 328
Cup holders ............................................455
Curtain shield airbags............................ 52
Customizable features ....................... 667
Daytime running light system .......... 288
Defogger
Front windshield.................................. 427
Outside rear view mirrors ............ 445
Rear window........................................ 445
Differential
Front differential .................................658
Rear differential ..................................658
Dimensions ............................................. 648
Display
Dynamic radar cruise control ....... 313
Dynamic radar cruise control
with full-speed range ................... 328
LKA (Lane-Keeping Assist) ........ 348
Multi-information display................. 129
Remote Touch screen .................... 406
Trip information...................................... 131
Warning message ............................. 614
Do-it-yourself maintenance ............. 533
Door courtesy lights.............................447
Door lock
Doors.........................................................186
Smart entry & start system ............. 153
Wireless remote control ..................177
Door pockets ......................................... 454
D

693Alphabetical index
LS460/LS460L_GE (OM50G06E)
Emergency, in case of
If the electronic key does not
operate properly ..............................631
If the engine will not start ............... 627
If the parking brake cannot be
released............................................... 629
If the vehicle battery is
discharged.........................................636
If the warning buzzer sounds ..... 605
If the warning light turns on ......... 605
If the warning message is
displayed ..............................................614
If you have a flat tire ........................... 618
If you think something is
wrong .................................................. 603
If your vehicle becomes stuck.....645
If your vehicle has to be stopped
in an emergency ............................ 595
If your vehicle needs to be
towed .................................................. 596
If your vehicle overheats ..................641
Engine
ACCESSORY mode ..................... 260
Air cleaner ............................................ 554
Compartment ..................................... 539
Engine switch ...................................... 259
Hood ....................................................... 536
How to start the engine ................. 259
Identification number.........................651
If the engine will not start ................627
Ignition switch (engine switch) ... 259
Overheating .......................................... 641
Engine compartment cover ...............541
Engine coolant....................................... 547
Capacity................................................. 656
Checking ............................................... 547
Preparing and checking before
winter ................................................... 399
Engine coolant temperature
gauge .......................................................125
Engine immobilizer system ............... 104
Engine oil ................................................. 544
Capacity................................................. 653
Checking ............................................... 544
Preparing and checking before
winter ................................................... 399
Engine switch ......................................... 259
EPS (Electric Power Steering) .........361
Function.................................................... 361
Warning light.......................................606