2022 LEXUS ES300h air condition

2765-3. Using the air conditioning system
and the fan is operating, turning automatic
mode on will activate the dehumidification
function. The next time the dehumidification
function is turned off, the automatic mode
for switching between outside air and recir-
culated air modes is canceled.
This function automatically controls the
air conditioning airflow so that priority
is given to the front seats. When the
front passenger seat is not occupied,
airflow may switch to only the driver’s
seat. Unnecessary air conditioning is
suppressed, contributing to increased
fuel efficiency.
Front seat concentrated airflow mode
operates in the following situations.
No passengers are detected in the rear seats
 The windshield defogger is not
operating
While operating, illuminates.
QManually turning front seat con-
centrated airflow mode on/off
In front seat concentrated airflow
mode, directing airflow to the front
seats only and to all seats can be
switched via switch operation. When
the mode has been switched manually,
automatic airflow control stops operat-
ing.
Select on the center display
and switch the airflow.
 Indicator illuminated: Airflow to the
front seats only
 Indicator off: Airflow to all the seats
QOperation of automatic airflow control
OIn order to maintain a comfortable inte-
rior, airflow may be directed to seats
without passengers immediately after the
hybrid system is started and at other
times depending on the outside tempera-
ture.
OAfter the hybrid system is started, if pas-
sengers move around inside or enter/exit
the vehicle, the system cannot accurately
detect the presence of passengers and
automatic airflow control will not oper-
ate.
QOperation of manual airflow control
Even if the function is manually switched to
directing airflow to on ly the front seats,
when a rear seat is occupied, it may auto-
matically direct airflow to all seats.
QTo return to automatic airflow control
1 With the indicator off, turn the power
switch off.
NOTICE
QHumidity sensor
In order to detect fog on the windshield,
a sensor which monitors the temperature
of the windshield, the surround humidity,
etc. is installed.
Follow these points to avoid damaging
the sensor:
ODo not disassemble the sensor
ODo not spray the glass cleaner on the
sensor or subject it to strong impacts
ODo not stick anything on the sensor
Front seat concen trated airflow
mode (S-FLOW)

2775-3. Using the air conditioning system
5
Interior features
2After 60 minutes or more elapse, turn
the power switch to ON mode.
To turn on the “DUAL” mode, perform
any of the following procedures:
Select “DUAL” on the sub function
menu. ( P.273)
 Select “DUAL” on the option con-
trol screen.
 Adjust the front passenger’s side
temperature setting.
The indicator on the main control screen
comes on when the “DUAL” mode is on.
QLocation of air outlets
The air outlets and air volume changes
according to the selected air flow
mode.
QAdjusting the air flow direction and
opening/closing the air outlets
Front center/front side
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
Rear
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 for
driver and front passenger’s
seats separately (“DUAL” mode)
Air outlet layout and operations

2785-3. Using the air conditioning system
*: If equipped
WARNING
QTo prevent the windshield defogger
from operating improperly
Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers
from defogging.
Heated steering wheel*/seat
heaters
*/seat ventilators*
 Heated steering wheel
Warms up the grip of the steering wheel
Seat heaters
Warm up the seat upholstery
Seat ventilators
Maintain good air flow by sucking air
into the seats
Press the “MENU” button on the
Remote Touch and select to
display the air conditioning control
screen. Then, select on the sub
menu ( P.273) to display the
heated steering wheel/seat heat-
ers/seat ventilators control screen.
WARNING
QTo 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:
OBabies, small children, the elderly, the
sick and the physically challenged
OPersons with sensitive skin
OPersons who are fatigued
OPersons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)

2795-3. Using the air conditioning system
5
Interior features
Each time the switch is pressed, the
operation condition changes as fol-
lows.
AUTO (lit)  Hi (2 segments lit) 
Lo (1 segment lit)  Off
The AUTO indicator and/or level
indicator illuminates during opera-
tion.
QOperation condition
The power switch is in ON mode.
QWhen AUTO mode is selected
The heated steering wheel function may
turn off according to the air conditioning set
temperature, outside temperature, etc.
QStored settings
When the power switch is turned to ON
mode, the stored settings are recalled.
QSeat heaters
Each time the switch is pressed, the
operation condition changes as fol-
lows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 segment
lit)  Off
The AUTO indicator and/or level
indicator illuminates during opera-
tion.
QSeat ventilators
Each time the switch is pressed, the
operation condition changes as fol-
lows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 segment
lit)  Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
NOTICE
QTo 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.
QTo prevent 12-volt battery discharge
Do not use the functions when the hybrid
system is off.
Heated steering wheel
A
B
Seat heaters and ventilators
A
B
A
B

2805-3. Using the air conditioning system
QOperation condition
The power switch is in ON mode.
QAir conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi (when “AUTO” is selected), the seat
ventilator fan speed may become higher
according to the fan speed of the air condi-
tioning system.
QWhen AUTO mode is selected
The following functions may turn off
according to the air conditioning set tem-
perature, outside temperature, etc.
OSeat heaters
OSeat ventilators
QStored settings
When the power switch is turned to ON
mode, the stored settings of the following
functions are recalled.
OSeat heaters
OSeat ventilators
QMain display
Using the touchpad of the Remote
Touch, select the button on the screen.
This system can also be operated by
the touch screen.
Adjust the seat ventilator fan speed
level
The seat ventilator can be adjusted in 3
levels.
When the seat ventilator is operated, the
fan speed level is displayed on the screen.
Adjust the seat heater temperature
level
The seat heater can be adjusted in 3 levels.
When the seat heater is operated, the tem-
perature level is displayed on the screen.
Adjust the heated steering wheel
temperature level
The heated steering wheel can be adjusted
in 2 levels.
When the heated steering wheel is oper-
ated, the temperature level is displayed on
the screen.
Automatic mode on/off indicators
When the automatic mode is on, the indi-
cator illuminates on the screen.
Sub function menu
WARNING
QTo prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters.
ODo not cover the seat with a blanket or
cushion when using the seat heater.
ODo not use seat heater more than nec-
essary.
Control screen
A
B
C
D
E

2815-3. Using the air conditioning system
5
Interior features
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
QSide display (12.3-inch display
model)
Display the air conditioning control
screen ( P.274)
Adjust the seat heater temperature
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 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 level indicator change
as follows: AUTO
 Hi  Lo  Off
QCustomization
Steering wheel heating preference in auto-
matic mode and the automatic mode set-
tings for the seat heaters and ventilators can
be changed. (Customizable features:
 P.421)
A
B
C
D

2945-6. Using the other interior features
suspended.
OWhen charging, the wireless charging
device and portable device will get
warmer, however this is not a malfunc-
tion.
When a portable device gets warm while
charging, charging may stop due to the
protection function on the portable
device side. In this case, when the tem-
perature of the portable device drops
significantly, charge again.
QOperation sounds
When the power supply is turned on, while
searching for the portable device a sound
will be produced, however this is not a mal-
function.
WARNING
QCaution while driving
When charging a portable device, for
safety reasons, the driver should not
operate the main the part of the portable
device while driving.
QCaution regarding interference with
electronic devices
People with implantable cardiac pace-
makers, cardiac resynchronization ther-
apy-pacemakers or implantable
cardioverter defibrillators, as well as any
other electrical medical device, should
consult their physician about the usage of
the wireless charger.
The operations of the wireless charger
may have an affect on medical devices.
QTo prevent damage or burns
Observe the following precautions.
Failure to do so may result in a possibility
of equipment failure and damage, catch
fire, burns due to overheat.
ODo not insert any metallic objects
between the charging area and the
portable device while charging
ODo not attach stickers, metallic
objects, etc., to the charger area or
portable device
ODo not cover with cloth, etc., and
charge
ODo not charge portable devices other
than designated
ODo not attempt to dismantle for disas-
sembly or modifications
ODo not hit or apply a strong force
NOTICE
QConditions in which the function may
not operate correctly
In the following conditions, it may not
operate correctly
OThe portable device is fully charged
OThere is foreign matter between the
charge area and portable device
OThe temperature of the portable
device gets higher from charging
OThe charging surface of the portable
device is facing up
OThe placement of the portable device
is out of alignment with the charge
area
ONear a TV tower, electric power plant,
gas station, radio station, large display,
airport or other facility that generates
strong radio waves or electrical noise
OWhen the electronic key is in contact
with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs

307
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 308
Cleaning and protecting the vehi- cle interior ................................... 311
6-2. Maintenance Maintenance requirements ... 314
General maintenance .............. 315
Emission inspection and mainte- nance (I/M) programs .......... 318
6-3. Do-it-yourself maintenance Do-it-yourself service precautions......................................................... 319
Hood................................................ 321
Positioning a floor jack ............. 321
Engine compartment............... 323
12-volt battery............................. 328
Tires ................................................ 330
Tire inflation pressure .............. 338
Wheels........................................... 340
Air conditioning filter............... 342
Cleaning the hybrid battery (trac- tion battery) air intake vent and
filter .............................................. 343
Electronic key battery ............. 347
Checking and replacing fuses ........................................................ 349
Headlight aim............................... 351
Light bulbs .................................... 352