heater LEXUS LS500 2019 User Guide

3275-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features ■
Center Display 
Main screen
Using the touchpad of the Remote
Touch, select the button on the screen.
to can be adjusted by perform-
ing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
up or down. The item can be adjusted by one level.
Trace operation: After selecting the
desired item, trace the touchpad sur-
face. The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing. Center Display
Press the “MENU” button on the
Remote Touch to display the main
menu and move the cursor to to
display the shortcut buttons. Then,
select to display the heated
steering wheel/front seat
heater/front seat ventilator control
screen.
To display the rear seat heater/rear
seat ventilator control screen, select
. (if equipped)
 Rear Multi Operation Panel
Touch “Climate” on the home screen
to display the air conditioning con-
trol screen.(  P.308)
Touching the shortcut button on the
home screen will display operation
buttons for the rear seat heaters and
rear seat ventilators.
 Rear control panel
The rear seat heaters can be oper-
ated. WARNING
■
To prevent minor burn injuries
Care should be taken if anyone in the fol-
lowing categories comes in contact with
the steering wheel or seats when the
heater is on:
●
Babies, small children, the elderly, the
sick and the phys ically challenged
●
Persons with sensitive skin
●
Persons who are fatigued ●
Persons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE■
To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (n eedles, nails, etc.)
into the seat. ■
To prevent battery discharge
Do not use the functions when the
engine is off.
Control screen
A C

328 5-3. Using the air conditioning system and defogger
LS500_OM_(U)_1810 Adjust the seat ventilator fan speed
levelThe seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Adjust the seat heater temperature
levelThe seat heater can be adjusted in 3 levels.
(Low, Mid or Hi)
Adjust the heated steering wheel
temperature level *
The heated steering wheel can be adjusted
in 2 levels. (Low or Hi)
Automatic mode on/off indicatorsWhen the automatic mode is on, the indi-
cator illuminates on the screen.
Sub function menu When the sub function button on the
Remote Touch is pressed, the following
functions can be set to automatic mode.
: Left-hand side seat heater/seat
ventilator
: Heated steering wheel *
: Right-hand side seat heater/seat
ventilator *
: Available on the front seat control
screen only 
Side screen
Display the air conditioning control
screen:  P.319
Adjust the front seat heater tem-
perature level Each time the switch is selected, the tem-
perature level and level indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Adjust the front seat ventilator fan
speed level Each time the switch is selected, the fan
speed level and level indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Adjust the heated steering wheel
temperature level Each time the switch is selected, the tem-
perature level and le vel indicator change
as follows:
AUTO  Hi  Lo  OFFA
B
C
D
E A
B
C
D

3295-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features ■
Rear Multi Operation Panel (if
equipped) 
Rear air conditioning control screen
Adjust the rear seat heater tem-
perature levelEach time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Adjust the rear seat ventilator fan
speed levelEach time the switch is selected, the fan
speed level and leve l indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Shortcut screen
Adjust the rear seat heater tem-
perature levelEach time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  OFF Adjust the rear seat ventilator fan
speed level Each time the switch is selected, the fan
speed level and level indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  OFF■
Rear control panel (if equipped)
Increases the rear seat heater tem-
perature level The seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Enables/Disables the automatic
mode of the rear seat heaters
Decreases the rear seat heater
temperature level If this switch is select ed when the rear seat
heater temperature level is set to Lo, the
rear seat heater will turn off.
■
The heated steering wheel, seat heaters
and seat ventilators can be used when
The engine switch is in IGNITION ON
mode.
■
Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilato r fan speed becomes
higher according to the fan speed of the air
conditioning system.
■
When the air conditioning system is
operating in S-FLOW mode
If a passenger is not detected in the front A
B
A B
A
B
C

330 5-3. Using the air conditioning system and defogger
LS500_OM_(U)_1810 passenger seat, the seat ventilator and seat
heater of the front pa ssenger’s seat will be
turned off if on. (  P.320)■
Customization
Some functions can be customized.
(  P.466)
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.

362 6-1. Maintenance and care
LS500_OM_(U)_1810  Remove dirt using a water-damp-
ened soft cloth or synthetic chamois.
 Wipe the surface with a dry, soft
cloth to remove any remaining
moisture. ■
Cleaning the areas with satin-finish
metal accents
The metal areas use a layer of real metal for
the surface. It is necessary to clean them
regularly. If dirty area s are left uncleaned for
long periods of time, they may be difficult to
clean.
 Remove dirt and dust using a vac-
uum cleaner.
 Wipe off any excess dirt and dust
with a soft cloth dampened with
diluted detergent. Use a diluted water solution of approxi-
mately 5% neutral wool detergent.
 Wring out any excess water from
the cloth and thoroughly wipe off all
remaining traces of detergent.
 Wipe the surface with a dry, soft
cloth to remove any remaining
moisture. Allow the leather to dry in
a shaded and ventilated area. ■
Caring for leather areas
Lexus recommends cleani ng the interior of
the vehicle at least twice a year to maintain
the quality of the vehicle’s interior.NOTICE■
Preventing damage to leather sur-
faces
Observe the following precautions to
avoid damage to and deterioration of
leather surfaces: ●
Remove any dust or dirt from leather
surfaces immediately.●
Do not expose the vehicle to direct
sunlight for extended periods of time.
Park the vehicle in the shade, espe-
cially during summer.●
Do not place items made of vinyl, plas-
tic, or containing wax on the uphol-
stery, as they may stick to the leather
surface if the vehicle interior heats up
significantly.■
Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system
may be damaged if water comes into
contact with electrical components such
as the audio system above or under the
floor of the vehicle. Water may also
cause the body to rust. ■
When cleaning the inside of the wind-
shield
Do not allow glass cleaner to contact the
lens. Also, do not touch the lens. (  P.191,
198)
■
Cleaning the inside of the rear win-
dow●
Do not use glass cleaner to clean the
rear window, as this may cause dam-
age to the rear window defogger
heater wires or antenna. Use a cloth
dampened with lukewarm water to
gently wipe the window clean. Wipe
the window in strokes running parallel
to the heater wires or antenna.
●
Be careful not to scratch or damage
the heater wires or antenna. Cleaning the areas with satin-fin-
ish metal accents
Cleaning the leather areas

4297-2. Steps to take in an emergency
LS500_OM_(U)_1810 7
When trouble arises immediately.
• “Access System with Elec. Key Malfunc-
tion”
• “Shift System Malfunction”
• “P Switch Malfunction”
• “Shift System Unavailable” ●
If any of the following messages are
shown on the multi-information display, it
may indicate a malfunction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
Take your vehicle to the nearest Lexus
dealer or authorized tire dealer as
soon as possible if any tire goes flat. The vehicle can be driven for a maximum
of 100 miles (160 km) at a speed below 50
mph (80 km/h) after the tire pressure
warning light comes on. (  P.419)
A run-flat tire has a mark on the
side wall.
■
In some conditions (s uch as at high tem-
peratures)
You cannot continue driving for up to 160
miles (100 km).
■
For the detailed information on run-flat
tires
See the tire warranty booklet.NOTICE■
If “High Power Consumption Partial
Limit On AC/Heater Operation” is
displayed frequently
There is a possible malfunction relating
to the charging system or the battery
may be deteriorating. Have the vehicle
inspected by your Lexus dealer. If you have a flat tire Your vehicle is not equipped with a
spare tire, but instead you can con-
tinue driving the vehicle with
run-flat tires even if any tire goes
flat.
In this case, slow down and drive
with extra caution.
Run-flat tires

460 8-1. Specifications
LS500_OM_(U)_1810 ■
Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete. A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction. ■
Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under controlled condi-
tions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is prop erly inflated and not
overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology Tire related term Meaning
Cold tire inflation pressure Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pressure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)

478 8-2. Customization
LS500_OM_(U)_1810 ■
Seat heater/seat ventilators *1
(  P.326)
*1
: If equipped *2
: Vehicles without power rear seat
■
Heated steering wheel *
(  P.326)*
:If equipped Function Default setting Customized set-
ting
Driver’s seat temperature
preference in automatic
mode Standard -2 (cooler) to 2
(warmer) O — — O
Passenger’s seat tempera-
ture preference in automatic
mode Standard -2 (cooler) to 2
(warmer) O — — O
Left-hand rear seat tempera-
ture preference in automatic
mode *1
Standard -2 (cooler) to 2
(warmer) O — — O
Right-hand rear seat tem-
perature preference in auto-
matic mode *1
Standard -2 (cooler) to 2
(warmer) O — — O
Engine switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator *2
Off On O — — O
Engine switch linked auto-
matic activation of the
right-hand rear seat
heater/ventilator *2
Off On O — — O
Function Default setting Customized set-
ting
Steering wheel heating pref-
erence in automatic mode Standard -2 (low) to 2
(high) O — — O A B C D
A B C D

498 Alphabetical Index
LS500_OM_(U)_1810 Brightness control
Instrument panel light control ........75, 79
BSM (Blind Spot Monitor)....................... 250
Buzzer
Hands off steering wheel alert (LTA)
............................................................. 236, 236 C
Card key ............................................................ 96
Care
Aluminum wheels ..................................... 358
Exterior .......................................................... 358
Interior ...............................................................361
Seat belts..........................................................361
Cargo capacity............................................... 162
Cargo net ....................................................... 340
Center Display ............................................. 306
Chains ............................................................... 301
Child restraint system
Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupa nt classification
system ............................................................. 40
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 ....................... 381, 439
Child restraint system................................. 46
Heated steering wheel and seat heater
precautions................................................ 327
How your child should wear the seat belt
............................................................................ 25
Moon roof precautions ............................146
Panoramic moon roof precautions ... 150
Power window lock switch..................... 144
Power window precautions ................... 143
Rear door child-protectors ................... 103 Removed electronic key battery precau-
tions .............................................................. 400
Seat belt extender precautions.............. 25
Seat belt precautions .................................. 45
Trunk precautions....................................... 104
Child-protectors........................................... 103
Cleaning
Aluminum wheels ..................................... 358
Exterior........................................................... 358
Interior .............................................................. 361
Radar sensor .......................................192, 198
Seat belts ......................................................... 361
Clock ................................................ 73, 76, 345
Clock light ........................................................331
Coat hooks..................................................... 344
Coin holder .................................................... 337
Condenser ..................................................... 378
Console box .................................................. 338
Consumption screen ...................................... 91
Cooling system..............................................377
Engine overheating.................................. 440
Cornering lights .............................................. 181
Cruise control
Dynamic radar cruise control with
full-speed range .......................... 237, 247
Cup holders ................................................... 337
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 29
Customizable features .............................. 466
D
Daytime running light system ................... 179
Defogger
Outside rear view mirrors.......................314
Rear window ..................................................314
Windshield ......................................................314
Differential
Front differential oi l............. ...................... 450
Rear differential oil. .................... ........... ...... 451
Dimension ...................................................... 446
Dinghy towing.................................................163

500 Alphabetical Index
LS500_OM_(U)_1810 If the electronic key does not operate
properly....................................................... 433
If the engine will not start .......................430
If the fuel filler door cannot be opened
......................................................................... 432
If the vehicle is trapped in rising water
......................................................................... 407
If you have a flat tire .................................. 429
If you lose your keys................................. 432
If you think something is wrong ........... 413
If your vehicle becomes stuck............. 443
If your vehicle has to be stopped in an
emergency ................................................406
If your vehicle needs to be towed .....409
If your vehicle overheats ........................440
Engine
ACCESSORY mode ...............................166
Compartment ............................................. 373
Engine compartment cover ................. 374
Engine switch.................................................164
Fuel pump shut off system ...................... 414
Hood.................................................................. 371
How to start the engine............................164
Identification number ............................... 447
If the engine will not start .......................430
If your vehicle has to be stopped in an
emergency ................................................406
Ignition switch (engine switch) .............164
Overheating.................................................440
Tachometer ............................................. 73, 76
Engine compartment cover .................... 374
Engine coolant
Capacity ......................................................... 449
Checking ........................................................377
Preparing and checking before winter
........................................................................ 300
Engine coolant temperature gauge 73, 76
Engine immobilizer system ........................ 63
Engine oil
Capacity .........................................................448
Checking ....................................................... 375 Preparing and checking before winter
......................................................................... 300
Warning light ................................................ 416
Engine oil maintenance data ...................377
Engine switch ..................................................164
Auto power off function........................... 166
Changing the engine switch modes . 166
If your vehicle has to be stopped in an
emergency ................................................ 406
EPS (Electric Power Steering) .............. 295
Warning light ................................................ 418
Event data recorder (E DR) ............................7 F
FCTA (Front Cross Traffic Alert) ......... 222
First-aid kit storage belt ..............................341
Flat tire
Tire pressure warning system ............ 384
Floor mats ...........................................................22
Fluid
Automatic transmission ......................... 450
Brake ................................................................. 451
Washer ........................................................... 379
Footwell light ...................................................331
Front automatic air conditioning system
............................................................................313
Front Cross Traffic Alert (FCTA) ......... 222
Front passenger occupant classification
system .............................................................. 40
Front seats
Adjustment ....................................................... 119
Cleaning .......................................................... 361
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 ..................................................326
Seat position memory .............................. 130
Seat ventilators ............................................326