heater LEXUS LS500H 2019 User Guide

3365-3. Using the air conditioning system and defogger
LS500h_OM_(U)_1809
2To stop the operat ion, select “Rear
off” on the sub function menu.
( P.334)
If the fan speed setting or air flow
modes are operated , the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained.
Rear Multi Operation Panel
1 Select “AUTO” on the rear air con-
ditioning control screen. ( P.335)
2 To stop the operation, select “OFF”
on the rear air co nditioning control
screen. ( P.334)
If the fan speed setting or air flow
modes are operated , the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained.
■Using automatic mode
Fan speed is adjusted automatically accord-
ing to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until
warm or cool air is ready to flow immedi-
ately after “Rear AUTO” is selected or
“AUTO” is touched.
Cool air may blow around the upper body
even when the heater is on due to sunlight.
The temperature setting of the rear
seats can be adjusted using the follow-
ing methods:
 When the “4-ZONE” indicator is
off: Adjust the driv er’s seat tempera-
ture.
Adjust the temperature setting of each
rear seat using the Ce nter Display or Rear
Multi Operation Panel.
 Adjust the temperature setting of
each rear seat using the Center Dis-
play (rear air conditioning control
screen) or Rear Multi Operation
Panel.
The temperature setting of each rear seat
can be changed independently.
■Rear center outlets and rear side
outlets
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
Adjusting the temperature set-
ting of the rear seats
Air outlet layout and operations
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the
hybrid system is off.

3375-3. Using the air conditioning system and defogger
LS500h_OM_(U)_1809
5
Interior features
*:If equipped
Heated steering wheel*/seat
heaters/seat ventilators
 Heated steering wheel
Warms up the grip of the steering
wheel
 Front seat heaters/Rear seat
heaters
Warm up the seat upholstery
 Front seat ventilators/Rear seat
ventilators
Maintain good ventilation by pulling
air through the seat upholstery
The Center Display and Rear Multi
Operation Panel/rear control
panel can be used to operate the
heated steering wheel, seat heaters
and seat ventilators as follows:
 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 cont rol screen, select
. (if equipped)
 Rear Multi Operation Panel
Touch “Climate” on the home screen
to display the air conditioning con-
trol screen.( P.318)
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 physically challenged
●Persons with sensitive skin
●Persons who are fatigued

3385-3. Using the air conditioning system and defogger
LS500h_OM_(U)_1809
■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.
Adjust the seat ventilator fan speed
level
The seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Adjust the seat heater temperature
level
The 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 indicators
When 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
WARNING
●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 (needles, nails, etc.)
into the seat.
■To prevent 12-volt battery discharge
Do not use the functions when the hybrid
system is off.
Control screen
AC
A
B
C
D
E

3395-3. Using the air conditioning system and defogger
LS500h_OM_(U)_1809
5
Interior features
Side screen Display the air conditioning control
screen: P.329
Adjust the front seat heater tem-
perature level
Each time the switch is selected, the tem-
perature level and leve l 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 leve l 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 OFF
■Rear Multi Operation Panel (if
equipped)
Rear air conditioning control screen
Adjust the rear 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 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
Shortcut screen
Adjust the rear 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
A
B
C
D
A
B
A

3405-3. Using the air conditioning system and defogger
LS500h_OM_(U)_1809
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 power switch is in ON mode.
■Air conditioning system-linked control
mode
When the seat ventilato r fan speed level is
Hi, the seat ventilator 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
passenger seat, the seat ventilator and seat heater of the front passenger’s seat will be
turned off if on. (
P.330)
■Customization
Some functions can be customized.
(  P.479)
B
A
B
C
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.

3726-1. Maintenance and care
LS500h_OM_(U)_1809
To prevent the hybrid battery (traction
battery) air intake vents from becom-
ing clogged, clean them periodically.
Clean the vents of the both sides.
■Cleaning the air intake vents
Remove any dust and clogs from the
air intake vents with a vacuum cleaner,
etc.
The filters are attached to the back side of
the air intake vent grilles.
If “Maintenance Required for Traction
Battery Cooling Parts See Owner’s
Manual” is displayed on the multi-infor-
mation display, the filters may be
clogged. Remove the air intake vent
grilles and clean the filters.
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.199, 206)
■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 hybrid battery
(traction battery) air intake vents

4397-2. Steps to take in an emergency
LS500h_OM_(U)_1809
7
When trouble arises
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.428)
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 12-volt bat-
tery may be deteriorating. Have the vehi-
cle inspected by your Lexus dealer.
■If “Have Traction Battery Inspected”
is displayed
This message indicates that the hybrid
battery (traction battery) may require
inspection or replacement. Have the
vehicle inspected by your Lexus dealer
immediately.
Do not continue driving the vehicle, as
the hybrid system may become not able
to be started again.
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

4738-1. Specifications
LS500h_OM_(U)_1809
8
Vehicle specifications
■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 properly 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 termMeaning
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 pressureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid transmis-
sion, 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)

4918-2. Customization
LS500h_OM_(U)_1809
8
Vehicle specifications
■Seat heater/seat ventilators ( P.337)
*1: If equipped
*2: Vehicles without power rear seat
■Heated steering wheel* ( P.337)
*:If equipped
FunctionDefault settingCustomized 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
*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
Power switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator
*2
OffOnO——O
Power 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
ABCD
ABCD

510Alphabetical Index
LS500h_OM_(U)_1809
Buzzer Hands off steering wheel alert (LTA)............................................................. 244, 244
C
Card key .......................................................... 108
Care Aluminum wheels ......................................368
Exterior ...........................................................368
Interior ............................................................... 371
Seat belts.......................................................... 371
Cargo capacity.............................................. 168
Cargo net ....................................................... 350
Center Display ...............................................316
Chains ............................................................... 310
Child restraint system Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupant 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 12-volt battery precautions ........ 391, 449
Airbag precautions...................................... 34
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................ 337
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................ 157
Power window lock switch.................... 156
Power window precautions .................. 155
Rear door child-protectors ..................... 115
Removed electronic key battery precau- tions ................................................................ 410
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 45
Trunk precautions ........................................ 116 Child-protectors............................................. 115
Cleaning
Aluminum wheels ..................................... 368
Exterior........................................................... 368
Interior ...............................................................371
Radar sensor ................................... 200, 206
Seat belts ..........................................................371
Clock ................................................ 81, 85, 355
Clock light ........................................................341
Coat hooks..................................................... 354
Coin holder .................................................... 347
Condenser .....................................................388
Console box .................................................. 348
Cooling system............................................. 387 Engine overheating.................................. 450
Hybrid system overheating ................... 451
Cornering lights ............................................ 189
Cruise control Dynamic radar cruise control with full-speed range ......................... 245, 255
Cup holders ................................................... 347
Current fuel consumption .......................... 92
Curtain shield airbags .................................. 29
Customizable features .............................. 479
D
Daytime running light system ...................187
Defogger Outside rear view mirrors..................... 324
Rear window ................................................ 324
Windshield .................................................... 324
Differential Front differential oil............. .......................463
Rear differential oil......... ..................... .......463
Dimension ...................................................... 458
Dinghy towing.................................................169
Display Center Display ............................................. 316
Dynamic radar cruise control with full-speed range ......................................245
Energy monitor ............................................ 100
Head-up display............................................ 96