2020 LEXUS LS500 heating

3004-5. Using the driving support systems
of the following situations:
●Shift the shift position to P or N
●The accelerator pedal is depressed
●The parking brake is engaged
●2 seconds at maximum elapsed after the
brake pedal is released
■VGRS is disabled when
VGRS may stop operating in the following
situations.
In this event, the steering wheel may move
from its straight forward position, but it will
return when the system restarts.
●When the steering wheel is operated for
an extended period of time while the
vehicle is stopped or is moving very
slowly (on vehicles with LDH, DRS is dis-
abled together with VGRS)
●When the steering wheel has been held
fully to the left or right
The center position of the steering wheel
may change when VGRS is disabled. How-
ever, the position will return to normal after
VGRS is reactivated.
■When the battery is disconnected (vehi-
cles with VGRS)
The steering wheel may move from its
straight forward position, but this will be
corrected automatically when driving.
■Sounds and vibrations caused by the
ABS, brake assist, VS C, TRAC, hill-start
assist control and VGRS systems
●A sound may be heard from the engine
compartment when the brake pedal is
depressed repeatedly, 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 oper-
ating. None of these indicates that a mal-
function has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• Vehicles without Lexus Safety System +
A: The brake pedal may pulsate slightly after the ABS is activated.
• Vehicles without Lexus Safety System + A: The brake pedal may move down
slightly after the ABS is activated.
■ECB operating sound
ECB operating sound may be heard in the
following cases, but it does not indicate that
a malfunction has occurred.
●Operating sound heard from the engine
compartment when the brake pedal is
operated.
●Motor sound of the brake system heard
from the front part of the vehicle when
the driver’s door is opened.
●Operating sound heard from the engine
compartment when one or two minutes
passed after the stop of the engine.
■EPS, VGRS and DRS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■Automatic reactivation of TRAC and
VSC systems
After turning the TRAC and VSC systems
off, the systems will be automatically
re-enabled in the following situations:
●When the engine switch is turned off
●If only the TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases.
■Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating when there is frequent steering
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, re frain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should
return to normal within 10 minutes.
■Secondary Collision Brake operating
conditions
The vehicle speed is approximately 6 mph

3155-2. Lexus Climate Concierge
5
Interior features
5-2.Lexus Climate Concierge
Select .
The indicator on the Lexus Climate Con-
cierge control screen illuminates, and the
automatic air conditioning system, seat
heaters and ventilators, and heated steer-
ing wheel operate in automatic mode.
If any of the system is operated manually,
the indicator turns off. However, all other
functions continue to operate in automatic
mode.
■Changing Lexus Climate Con-
cierge control screen between
front/rear (vehicles with 4-ZONE
climate control)
Select “Rear” to display the rear air
conditioning system screen.
Select “Front” to display the front air condi-
tioning system screen.
■When using the Lexus Climate Con-
cierge
Lexus Climate Concierge can be operated
on the sub function menu or option control
screen. ( P.320)
■Automatic air conditioning system
( P.317, 327)
The temperature can be adjusted inde-
pendently for each seat.
■Seat heaters and ventilators (if
equipped) ( P.330)
Heating or ventilation is automatically
selected according to the set tempera-
ture of the air conditioning system, the
outside temperature, etc.
■Heated steering wheel (if
equipped) ( P.330)
Heated steering wheel operates auto-
matically according to the set tempera-
Lexus Climate Concierge
The seat heaters (if equipped), seat
ventilators (if equipped) and heated
steering wheel (if equipped) are
each automatically controlled
according to the set temperature of
the air conditioning system, the out-
side and cabin temperature, etc.
Lexus Climate Concierge allows a
comfortable condition to be main-
tained without adjusting each sys-
tem.
Press the “MENU” button on the
Remote Touch to display the main
menu and move the cursor to
to display the climate control short-
cut buttons. Then, select to dis-
play the Lexus Climate Concierge
control screen.
Turning on Lexus Climate Con-
ciergeOperation of each system

3195-3. Using the air conditioning system and defogger
5
Interior features
■Registering air conditioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the engine switch to
IGNITION ON mode will recall that
key’s registered air conditioning settings.
●When the engine switch is turned off, the
current air conditioning settings will auto-
matically be registered to the electronic
key that was used to unlock the vehicle.
●The system may not operate correctly if
more than one electronic key is in the
vicinity or if the smart access system with
push-button start is used to unlock a pas-
senger door.
●The doors that can recall the air condi-
tioning setting* when unlocked using the
smart access system with push-button
start can be changed. For details, contact
your Lexus dealer.
*: The doors that can recall the driving
position memory are changed at the
same time.
■Operation of the air conditioning sys-
tem in Eco drive mode
In Eco drive mode, the air conditioning sys-
tem is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation
controlled to restri ct heating/cooling
capacity
●Fan speed restricted when automatic
mode is selected
To improve air conditioning performance,
perform the following operations:
●Turn off eco air conditioning mode
(  P.320)
●Adjust the fan speed
●Turn off Eco drive mode ( P.292)
■When the outside temperature falls to
nearly 32°F (0°C)
The dehumidification function may not
operate even when “A/C” is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning
system to the outside air mode.
●During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time imme-
diately after the air conditioning system is
started in automatic mode or with the
micro dust and pollen filter on.
●When parking, the system automatically
switches to outside air mode to encour-
age better air circulation throughout the
vehicle, helping to reduce odors that
occur when starting the vehicle.
■Using the voice command system
Air conditioning system can be operated
using voice commands. For details, refer to
the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.
■Air conditioning filter
 P.402
■Customization
Some functions can be customized.
(  P.470)
WARNING
■To prevent the windshield from fog-
ging up
Do not use the windshield defogger
switch during cool air operation in
extremely humid weather. The difference
between the temperature of the outside
air and that of the windshield can cause
the outer surface of the windshield to fog
up, blocking your vision.
■When the outside rear view mirror
defoggers are operating
Do not touch the outside rear view mir-
ror surfaces, as they can become very
hot and burn you.

3335-3. Using the air conditioning system and defogger
5
Interior features
■When the air conditioning system is
operating in S-FLOW mode
If a passenger is not detected in the front
passenger seat, the seat ventilator and seat
heater of the front pa ssenger’s seat will be
turned off if on. ( P.324)
■Customization
Some functions can be customized.
(  P.470)
WARNING
■To prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters.
●Do not cover the seat with a blanket or
cushion when using the seat heater.
●Do not use seat heater more than nec-
essary.

4447-2. Steps to take in an emergency
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the engine has cooled down
sufficiently, inspect the hoses and radiator core (radiator) for any
leaks.
Radiators
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4
The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Engine
Reservoir
“F” line
“L” line
Coolant inlet cap
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.73, 76) is in the red
zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the
multi-information display.
 Steam comes out from under the
hood.
Correction procedures
A
B
A
B
C
D

4828-2. Customization
*1: If equipped
*2: Vehicles without power rear seat
■Heated steering wheel* ( P.330)
*:If equipped
■Illumination ( P.334)
Left-hand rear seat tempera-
ture preference in automatic
mode
*1Standard-2 (cooler) to 2
(warmer)O——O
Right-hand rear seat tem-
perature preference in auto-
matic mode
*1Standard-2 (cooler) to 2 (warmer)O——O
Engine switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator
*2
OffOnO——O
Engine switch linked auto-
matic activation of the
right-hand rear seat
heater/ventilator
*2
OffOnO——O
FunctionDefault settingCustomized set- ting
Steering wheel heating pref-
erence in automatic modeStandard-2 (low) to 2 (high)O——O
FunctionDefault settingCustomized set- ting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O——O7.5 seconds
30 seconds
Operation after the engine
switch is turned offOnOff———O
Operation when the doors
are unlockedOnOff———O
FunctionDefault settingCustomized set-tingABCD
ABCD
ABCD

500Alphabetical Index
Parking brake ................................................ 176
Warning light .................................................419
Brake assist .................................................... 297
Break-in tips.................................................... 155
Brightness control Instrument panel light control ........75, 79
BSM (Blind Spot Monitor).........................251
Buzzer Hands off steering wheel warning (LTA)......................................................................... 237
C
Card key ............................................................ 96
Care Aluminum wheels ...................................... 362
Exterior ........................................................... 362
Interior .............................................................365
Seat belts........................................................365
Cargo capacity...............................................163
Cargo net ....................................................... 343
Center Display .............................................. 310
Chains .............................................................. 304
Child restraint system Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupant classification system ............................................................. 39
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation method ........................................................... 46
Using an anchor bracket .......................... 55
Child safety Airbag precautions...................................... 34
Battery precautions ..................... 385, 443
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................330
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................ 147
Panoramic moon roof precautions ..... 151 Power window lock switch .................... 145
Power window precautions ...................144
Rear door child-protectors ................... 103
Removed electronic key battery precau-
tions .............................................................. 404
Seat belt extender precautions.............. 25
Seat belt precautions .................................. 45
Trunk precautions....................................... 104
Child-protectors........................................... 103
Cleaning Aluminum wheels ......................................362
Exterior............................................................362
Interior ............................................................ 365
Radar sensor .......................................193, 199
Seat belts ....................................................... 365
Clock ................................................73, 76, 348
Clock light ...................................................... 334
Coat hooks..................................................... 347
Coin holder .................................................... 340
Condenser ..................................................... 383
Console box ....................................................341
Consumption screen ...................................... 91
Cooling system............................................. 382 Engine overheating................................... 444
Cornering lights .............................................182
Cruise control Dynamic radar cruise control with full-speed range ........................... 238, 241
Cup holders ................................................... 340
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 29
Customizable features .............................. 470
D
Daytime running light system .................. 180
Defogger Outside rear view mirrors...................... 318
Rear window ................................................. 318
Windshield ..................................................... 318
Differential Front differential oil............. .......................454
Rear differential oil......... ..................... ...... 455

502Alphabetical Index
If a warning message is displayed..... 429
If the battery is discharged .................... 439
If the electronic key does not operate properly....................................................... 437
If the engine will not start ....................... 434
If the fuel filler door cannot be opened ......................................................................... 436
If the vehicle is trapped in rising water411
If you have a flat tire .................................. 433
If you lose your keys................................. 436
If you think something is wrong ........... 417
If your vehicle becomes stuck............. 447
If your vehicle has to be stopped in an
emergency ................................................. 410
If your vehicle needs to be towed ....... 413
If your vehicle overheats ........................ 444
Engine ACCESSORY mode .............................. 168
Compartment ..............................................377
Engine compartment cover ................. 378
Engine switch................................................ 165
Fuel pump shut off system ..................... 418
Hood................................................................ 375
How to start the engine........................... 165
Identification number .................................451
If the engine will not start ....................... 434
If your vehicle has to be stopped in an
emergency ................................................. 410
Ignition switch (engine switch) ............ 165
Overheating................................................. 444
Tachometer ............................................. 73, 76
Engine compartment cover .................... 378
Engine coolant Capacity ......................................................... 453
Checking ....................................................... 382
Preparing and checking before winter.........................................................................303
Engine coolant temperature gauge 73, 76
Engine immobilizer system ........................ 63
Engine oil Capacity ......................................................... 452
Checking ...................................................... 380 Preparing and checking before winter
......................................................................... 303
Warning light ...............................................420
Engine oil maintenance data ................... 381
Engine switch ..................................................165 Auto power off function........................... 168
Changing the engine switch modes . 168
If your vehicle has to be stopped in an emergency .................................................. 410
EPS (Electric Power Steering) .............. 298 Warning light ............................................... 422
Event data recorder (E DR) ............................7
F
FCTA (Front Cross Traffic Alert) ......... 223
First-aid kit storage belt ............................ 344
Flat tire
Tire pressure warning system ............ 389
Floor mats ...........................................................22
Fluid Automatic transmission ..........................454
Brake ............................................................... 455
Washer .......................................................... 384
Footwell light ................................................. 334
Front automatic air conditioning system ............................................................................ 317
Front Cross Traffic Alert (FCTA) ......... 223
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ....................................................... 119
Cleaning ........................................................ 365
Correct driving posture ............................ 23
Driving position memory ........................ 130
Head restraints............................................. 135
Memory recall function............................ 133
Power easy access system .................... 130
Refresh system ..............................................124
Seat heaters ................................................. 330
Seat position memory .............................. 130
Seat ventilators ........................................... 330