2021 LEXUS ES300h fuel

2534-6. Driving tips
4
Driving
Control and maintain the vehicle at a
constant speed. Before stopping at a
toll booth or similar, allow plenty of
time to release the accelerator and
gently apply the brakes. A greater
amount of electrical energy can be
regenerated when slowing down.
Use the air conditioning only when
necessary. Doing so can help reduce
excessive gasoline consumption.
In summer: When the ambient tem-
perature is high, use the recirculated
air mode. Doing so will help to reduce
the burden on the air conditioning sys-
tem and reduce fuel consumption as
well.
In winter: Because the gasoline engine
will not automatically cut out until it and
the interior of the vehicle are warm, it
will consume fuel. Also, fuel consump-
tion can be improved by avoiding
overuse of the heater.
Make sure to check the tire inflation
pressure frequently. Improper tire
inflation pressure can cause poor fuel
economy.
Also, as snow tires can cause large
amounts of friction, their use on dry
roads can lead to poor fuel economy.
Use tires that are appropriate for the
season. Carrying heavy luggage will lead to
poor fuel economy. Avoid carrying
unnecessary luggage.
Installing a large
roof rack will also cause poor fuel
economy.
Since the gasoline engine starts up and
cuts out automatically when cold,
warming up the engine is unnecessary.
Moreover, frequently driving short dis-
tances will cause the engine to repeat-
edly warm up, which can lead to excess
fuel consumption.
Highway driving
Air conditioning
Checking tire inflation pressure
Luggage
Warming up before driving

2615-1. Remote Touch
5
Interior features
■Split-screen display (12.3-inch display model)
Different information can be displayed on the left and right of the screen. For
example, air conditioning system screen can be displayed and operated while the
fuel consumption information screen is be ing displayed. The large screen on the
left of the display is called the main display, and the small screen to the right is
called the side display.
■Main display
For details about the functions and
operation of the main display, refer to
the respective section and “NAVIGA-
TION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
■Side display (12.3-inch display
model)
The following functions can be dis-
played and operated on the side dis-
play.
Select or to display the desired
screen. Navigation system
*
Audio*
Vehicle information (
P.94)
Air conditioning system ( P.270)
Show/hide the side display
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”.
■Screen display during low temperatures
When the ambient temperature is
A
B
C
D
E

2665-3. Using the air conditioning system
to increase the fan speed and the fan
speed decrease switch to decrease the
fan speed.
Press the off switch to turn the fan off.
■Changing the air flow mode
Press the airflow mode control switch.
The mode changes as follows each
time the switch is pressed. ( P.268)
■Switching between outside air and
recirculated air modes
Press the outside/recirculated air
mode switch.
The mode changes as follows each
time the switch is pressed. (recirculated air mode) 
automatic mode
*  (outside
air mode)  (recirculated air
mode)
When the system is switched to automatic
mode, the air conditioning system oper-
ates automatically.
*: This item cannot be selected when the air conditioning is off.
■Defogging the windshield
Defoggers are used to defog the wind-
shield and front side windows.
Press the windshield defogger switch.
Set the outside/reci rculated air mode
switch to outside air mode if the recircu-
lated air mode is used. (It may switch auto-
matically.)
To defog the windshield and the side win-
dows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press the
windshield defogger switch again when the
windshield is defogged.
■Defogging the rear window and
outside rear view mirrors
Defoggers are used to defog the rear
window, and to remove raindrops, dew
and frost from the outside rear view
mirrors.
Press the rear wi ndow and outside
rear view mirror defoggers switch.
The defoggers will automatically turn off
after 15 minutes.
■When the outside temperature exceeds
75°F (24°C) and the air conditioning
system is on
●In order to reduce the air conditioning
power consumption, the air conditioning
system may switch to recirculated air
mode automatically. This may also
reduce fuel consumption.
●Recirculated air mode is selected as a
default mode when the power switch is
turned to ON mode.
●It is possible to switch to outside air mode
at any time by pressing the outside/recir-
culated air mode switch.
■Fogging up of the windows
The windows will easily fog up when the
humidity in the vehicle is high. Turning
“A/C” on will dehumidify the air from the
outlets and defog the windshield effectively.
●If you turn “A/C” off, the windows may
fog up more easily.
●The windows may fog up if the recircu-
lated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up by the
vehicle is still drawn into the vehicle after
closing the windows, it is recommended
that the air intake mode be set to outside air
mode and the fan speed to any setting
except off.
■Outside/recirculated air mode
●Setting to the recirculated air mode tem-
porarily is recommended in preventing

2675-3. Using the air conditioning system
5
Interior features
dirty air from entering the vehicle interior
and helping to cool the vehicle when the
outside air temperature is high.
●Outside/recirculated air mode may
automatically switch regardless of the air
conditioning setting depending on the
temperature setting or inside tempera-
ture.
■Registering air conditioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the power switch to ON
mode will recall that key’s registered air
conditioning settings.
●When the power 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 electr onic key is in the
vicinity or if the smart access system with
push-button start is used to unlock the
passenger door.
●Vehicles with the driving position mem-
ory: The doors that can recall the air con-
ditioning setting
* when unlocked using
the smart access system with push-but-
ton start can be changed. For details,
contact your Lexus dealer.
*: The doors that can recall the driving posi-
tion 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 condit ioning performance,
perform the following operations:
●Turn off eco air conditioning mode
(  P.268)
●Adjust the fan speed
●Turn off Eco drive mode ( P.213)
■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
system. This may then cause odor to be
emitted from the vents.
●When parking, the system automatically
switches to fresh air intake mode to
encourage better air circulation through-
out 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.342
■Air conditioning system refrigerant
●A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.

2695-3. Using the air conditioning system
5
Interior features
: Display the heated steering
wheel/seat heater/seat ventilator control
screen (if equipped)
: Display the Lexus Climate Con-
cierge control screen
: Display the option control screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode
: Air flows to the upper body
: Air flows to the upper body and feet
: Air flows to the feet
: Air flows to the feet and the wind-
shield defogger operates
Adjust the right-hand side tem-
perature setting
Function on/off indicators
When the function is on, the indicator illu-
minates on the control screen.
Sub function menu
When the sub function button on the
Remote Touch is pressed, the following
functions can be switched on and off.
: Set Lexus Climate Concierge
(  P.263)
“AUTO”: Set automatic mode on/off
(  P.270)
“Off”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
“DUAL”: Adjust the temperature for driver
and front passenger seats separately (“DUAL” mode) (
P.272)
: Set eco air conditioning mode
■Option control screen
Select on the sub menu to display
the option control screen.
The functions can be switched on and off.
When the function is on, the indicator illu-
minates on the screen.
Set Lexus Climate Concierge
( P.263)
Adjusting the temperature for
driver and front passenger seats
separately (“DUAL” mode)
( P.272)
Set eco air conditioning mode
Air conditioning and heater output is lim-
ited to prioritize fuel economy.
Cooling and dehumidification func-
tion
Select the S-FLOW mode
( P.271)
Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)
B
C
D
E
F
G
A
B
C
D
E
F

2715-3. Using the air conditioning system
5
Interior features
■Windshield fog detection function
When automatic mode is set, the humidity
sensor detects fog on the windshield and
controls the air conditioning system to pre-
vent fog.
■Automatic mode for air intake control
In automatic mode, the system detects
exhaust gas and other pollutants and auto-
matically switches between outside air and
recirculated air modes.
When the dehumidification function is off,
and the fan is operating, turning automatic
mode on will activate the dehumidification
function. The next time the dehumidification
function is turned off, the AUTO mode for
switching between outside air and recircu-
lated air modes is canceled.
This function automatically controls the
air conditioning airflo w 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.
■Manually 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
■Operation of automatic airflow control
●In 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.
●After 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
NOTICE
■Humidity 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:
●Do not disassemb le the sensor
●Do not spray the glass cleaner on the
sensor or subject it to strong impacts
●Do not stick anything on the sensor
Front seat concentrated airflow
mode (S-FLOW)

3126-2. Maintenance
6-2.Maintenance
■Repair and replacement
It is recommended that genuine Lexus parts
be used for repairs to ensure performance
of each system. If non-Lexus parts are used
in replacement or if a repair shop other than
a Lexus dealer perfor ms repairs, confirm
the warranty coverage.
■Allow inspection and repairs to be per-
formed by a Lexus dealer
●Lexus technicians are well-trained spe-
cialists and are kept up to date with the
latest service information. They are well
informed about the operations of all sys-
tems on your vehicle.
●Keep a copy of the repa ir order. It proves
that the maintenance that has been per-
formed is under warranty coverage. If
any problem should arise while your vehi-
cle is under warranty, your Lexus dealer
will promptly take care of it.
General maintenance should be per-
formed on a daily basis. This can be
done by yourself or by a Lexus dealer.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.
For details about ma intenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.
■Resetting the message indicating main-
tenance is required
After the required maintenance is per-
formed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedure
described below:
1 Press or of the meter control
switches and select .
2 Press or of the meter control
switches and select “Vehicle Settings”.
Then press “OK”.
Maintenance requirements
To ensure safe and economical
driving, day-to-day care and regu-
lar maintenance are essential. It is
the owner’s responsibility to per-
form regular checks. Lexus recom-
mends the following maintenance:
WARNING
■If your vehicle is not properly main-
tained
Improper maintenanc e could result in
serious damage to the vehicle and possi-
ble death or serious injury.
■Handling of the 12-volt battery
●Engine exhaust, some of its constitu-
ents, and a wide variety of automobile
components contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
other reproductive harm. Work in a
well ventilated area.
●Oils, fuels and fluids contained in vehi-
cles as well as waste produced by
component wear contain or emit
chemicals known to the State of Cali-
fornia to cause cancer and birth
defects or other re productive harm.
Avoid exposure and wash any affected
area immediately.
●12-volt battery post s, terminals and
related accessories contain lead and
lead compounds which are known to
cause brain damage. Wash your hands
after handling. ( P.326)
General maintenance
Scheduled maintenance

3166-2. Maintenance
The OBD system determines that a
problem exists somewhere in the emis-
sion control system. Your vehicle may
not pass the I/M test and may need to
be repaired. Contact your Lexus
dealer to service the vehicle.
When the 12-volt battery is discon-
nected or discharged
Readiness codes that are set during
ordinary driving are erased.
Also, depending on your driving
habits, the readiness codes may not
be completely set.
 When the fuel tank cap is loose
The malfunction indicator lamp
comes on indicating a temporary
malfunction and your vehicle may
not pass the I/M test. The error code in the OBD system will
not be cleared unless the vehicle is
driven 40 or more times.
Contact your Lexus dealer to prepare
the vehicle for re-testing.
Emission inspection and
maintenance (I/M) pro-
grams
Some states have vehicle emission
inspection programs which include
OBD (On Board Diagnostics)
checks. The OBD system monitors
the operation of the emission con-
trol system.
If the malfunction indicator lamp
comes on
Your vehicle may not pass the
I/M test in the following situa-
tions:
When the malfunction indicator
lamp still remains on after sev-
eral driving trips
If your vehicle does not pass the
I/M test