engine LEXUS ES350 2021 Owners Manual

2494-5. Using the driving support systems
4
Driving
return to normal within 10 minutes.
■If a message about AWD is shown on the multi-information display
Perform the following actions.
MessageDetails/Actions
“AWD System Overheated
Switching to 2WD Mode”
AWD system is overheating.
 Perform the following actions.
 Reduce the vehicle speed until the message disappears.
 Stop the vehicle in a safe pl ace and let the engine idle.
Once the display message on the multi-information display
turns off, there is no problem continuing to drive.
If the message does not disappear, have your vehicle
checked by your Lexus dealer immediately.
“AWD System Overheated
2WD Mode Engaged”
The vehicle switched from all-wheel drive (AWD) to front
wheel drive due to overheating.
 Perform the following actions.
 Reduce the vehicle speed until the message disappears.
 Stop the vehicle in a safe pl ace and let the engine idle.
Once the display message on the multi-information display
turns off, the AWD system returns to normal.
If the message does not disappear, have your vehicle
checked by your Lexus dealer immediately.
“AWD System Malfunction
2WD Mode Engaged Visit
Your Dealer”A malfunction occurred in the AWD system.
 Have your vehicle checked by your Lexus dealer imme-
diately.
WARNING
■The ABS does not operate effectively
when
●The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●The vehicle hydroplanes while driving
at high speed on wet or slick roads.
■Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping distance. Always
maintain a safe distance from the vehicle
in front of you, especially in the following
situations:
●When driving on dirt, gravel or snow-
covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with pot-
holes or uneven surfaces

2514-6. Driving tips
4
Driving
4-6.Driving tips
Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
• Engine coolant
•Washer fluid
Have a service technician inspect
the condition of the battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the front tires.
*
Ensure that all tires are the specified size
and brand, and that chains match the size
of the tires.
*: Tire chains cannot be mounted on vehi-
cles with 18-inch/19-inch tires.
Perform the following according to the
driving conditions:
 Do not try to forcibly open a window
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri-
ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air
pressure.
●Do not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains (vehicles with
17-inch tires)
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehicle
being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed
limit specified for the tire chains being
used, or 30 mph (50 km/h), which-
ever is lower.
●Avoid driving on bumpy road surfaces
or over potholes.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
●Slow down sufficiently before entering
a curve to ensure that vehicle control
is maintained.
●Do not use LTA (Lane Tracing Assist)
system.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow
tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attach-
ment of snow tires affects the operation
of the tire pressure warning valves and
transmitters.
Before driving the vehicle

2645-3. 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.266)
■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 to 60 minutes. The operation time
changes according to the ambient tem-
perature and vehicle speed.
■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 engine switch is
turned to IGNITION ON mode.
●It is possible to switch to outside air mode
at any time by pressing the outside/recir-
culated air mode switch.
■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.
■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.

2655-3. Using the air conditioning system
5
Interior features
■Outside/recirculated air mode
●Setting to the recirculated air mode tem-
porarily is recommended in preventing
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 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 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.267)
●Adjust the fan speed
●Turn off Eco drive mode ( P.210)
■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.339
■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.

2665-3. Using the air conditioning system
●The meaning of each symbol on the label
are as follows:
■Customization
Settings (e.g. A/C Auto switch operation)
can be changed.
(Customizable features P.419)
■Main control 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 pad surface.
The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing.
Sub menu
Selecting the sub menu item to switch the
main screen.
: Display the air conditioning control
screen
Caution
Air conditioning system
Air conditioning system
lubricant type
Requires registered tech-
nician to service air con-
ditioning system
Flammable refrigerant
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.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is off.
■When repairing/replacing parts of
the air conditioning system
Have repair/replace ment performed by
your Lexus dealer. When a part of the air
conditioning system, such as the evapo-
rator, is to be re placed, it must be
replaced with a new one.
Air conditioning control screen
BE
A

2715-3. 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.
■Operation condition
The engine switch is in IGNITION ON
mode.
■When AUTO mode is selected
The heated steering wheel function may
turn off according to the air conditioning set
temperature, outside temperature, etc.
■Stored settings
When the engine switch is turned to IGNI-
TION ON mode, the stored settings are recalled.
■Seat 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.
■Seat 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 and level
indicator illuminates during operation.
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 battery discharge
Do not use the functions when the
engine is off.
Heated steering wheel
A
B
Seat heaters and ventilators
A
B
A
B

2725-3. Using the air conditioning system
■Operation condition
The engine switch is in IGNITION ON
mode.
■Air conditioning system-linked control
mode
When the seat ventilato r fan speed level is
Hi (when AUTO is selected), the seat venti-
lator fan speed may become higher
according to the fan speed of the air condi-
tioning system.
■When AUTO mode is selected
The following functions may turn off
according to the air conditioning set tem-
perature, outside temperature, etc.
●Seat heaters
●Seat ventilators
■Stored settings
When the engine switch is turned to IGNI-
TION ON mode, the following stored set-
tings are recalled.
●Seat heaters
●Seat ventilators
■Main display
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 pad surface.
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
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 disp layed on the screen.
Adjust the heated steering wheel
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.
Control screen
AC
A
B
C

2745-4. Using the interior lights
5-4.Using the interior lights
Rear personal lights ( P.275)
Inside door handle lights (if equipped)
Instrument panel orname nt lights (if equipped)
Shift lever light
Front personal lights ( P.275)
Interior lights ( P.275)
Clock light
Footwell lights
Engine switch illumination
Door trim ornament lights (if equipped)
Door courtesy lights
Outer foot lights (front/ front and rear)
Interior lights list
Location of the interior lights
A
B
C
D
E
F
G
H
I
J
K
L

2755-4. Using the interior lights
5
Interior features
■Turning the door position on
Press the door-linked interior light
switch
The lights are turned on and off according
to whether the doors are opened/closed.
■Turning the lights on/off
Turns the lights on/off (touch the light)
The rear interior light turns on/off together
with the front interior light.
When a door is opened while the door
position is on, the lights turn on.
■Turning the lights on/off
Front
Turns the lights on/off (touch the light)
Rear
Turns the lights on/off
■Illuminated entry system
The lights automatically turn on/off accord-
ing to the engine switch mode, the pres-
ence of the electronic key, whether the
doors are locked/unlocked, and whether
the doors are opened/closed.
■To prevent the battery from being dis-
charged
If the interior lights remain on when the
engine switch is turned off, the lights will go
off automatically after 20 minutes.
■When front interior light or front per-
sonal lights do not respond as normal
●When water, dirt, etc., have adhered to
the lens surface
●When operated with a wet hand
●When wearing gloves, etc.
■The interior lights will turn on automati-
cally when
If any of the SRS airbag s deploy (inflate) or
in the event of a strong rear impact, the
interior lights will turn on automatically.
Operating the interior lights
Operating the personal lights

2765-4. Using the interior lights
The interior lights will turn off automatically
after approximately 20 minutes. The inte-
rior lights can be turned off manually. How-
ever, in order to help prevent further
collisions, it is recomme nded that they be
left on until safety can be ensured. (The inte-
rior lights may not turn on automatically
depending on the force of the impact and
conditions of the collision.)
■Customization
Some functions can be customized.
(  P.419)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is not run-
ning.
■Removing light lenses
Never remove the lens for the front inte-
rior light and front personal lights. Other-
wise, the lights will be damaged. If a lens
needs to be removed, contact your
Lexus dealer.