2022 LEXUS ES300h key battery

1133-2. Opening, closing and locking the doors and trunk
3
Before driving
the trunk lid.
OIf the spare electronic key is put in the
trunk with all the doors locked, the key
confinement prevention function is acti-
vated so the trunk can be opened. In
order to prevent theft, take all electronic
keys with you when leaving the vehicle.
OIf the electronic key is put in the trunk
with all the doors locked, the key may not
be detected depending on the location of
the key and the surrounding radio wave
conditions. In this case, the key confine-
ment prevention function cannot be acti-
vated, causing the doors to lock when the
trunk is closed. Make sure to check
where the key is before closing the trunk.
OThe key confinement prevention function
cannot be activated if any one of the
doors is unlocked. In this case, open the
trunk using the trunk opener.
QOverload protection function (vehicles
with power trunk lid)
The trunk lid will not operate when exces-
sive load is present on the top of the trunk
lid.
QFall-down protection function (vehicles
with power trunk lid)
While the trunk lid is opening automatically,
applying excessive force to it will stop the
opening operation to prevent the trunk lid
from rapidly falling down.
QJam protection function (vehicles with
power trunk lid)
While the trunk lid is closing automatically,
the trunk lid will stop closing and open if
something gets caught.
QInternal trunk release lever
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the inside
of the trunk to the side. The lever will con-
tinue to glow for some time after the trunk
lid is closed.
QUsing the mechanical key
The trunk can be also opened using the
mechanical key. ( P.389)
If the trunk is unlock ed using the mechani-
cal key, the power trunk lid and trunk easy
closer will not be operational. To return
them to an operational state, fully close the
trunk lid by hand.
QIf the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
Use the mechanical key to unlock the trunk.
(  P.389)
Replace the key battery with a new one if it
is depleted. ( P.347)
QHands Free Power Trunk Lid operating
conditions (vehicles with power trunk
lid)
OWhen the Hands Free Power Trunk Lid
(kick sensor) operation setting is turned
on and the power switch is turned off
OWhen an electronic key is carried within
the operation range
QSituations in which the Hands Free
Power Trunk Lid may not operate prop-
erly (vehicles with power trunk lid)
In the following situations, the Hands Free
Power Trunk Lid may not operate properly:
OWhen a foot remains under the rear
bumper
OIf the rear bumper is strongly hit with a
foot or is touched for a while
If the rear bumper has been touched for a
while, wait for a short time before
attempting to operate the Hands Free
Power Trunk Lid again.
OWhen operated while a person is too
close to the rear bumper
OWhen an external radio wave source

1173-2. Opening, closing and locking the doors and trunk
3
Before driving
QBattery-saving function
The battery-saving function will be acti-
vated in order to prevent the electronic key
battery and the 12-volt battery from being
discharged while the vehicle is not in opera-
tion for a long time.
OIn the following situations, the smart
access system with push-button start may
take some time to unlock the doors.
• The electronic key has been left within
approximately 6 ft. (2 m) of the outside of
the vehicle for 10 minutes or longer.
• The smart access system with push-but-
ton start has not been used for 5 days or
longer.
OIf the smart access system with push-but-
ton start has not been used for 14 days or
longer, the doors cannot be unlocked at
any doors except the driver’s door. In this
case, take hold of the driver’s door han-
dle, or use the wireless remote control or
mechanical key, to unlock the doors.
QTurning an electronic key to battery-
saving mode
OWhen battery-saving mode is set, battery
depletion is minimized by stopping the
electronic key from receiving radio
waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button
start cannot be used. To cancel the func-
tion, press any of the electronic key but-
tons.
OElectronic keys that will not be used for
long periods of time can be set to the bat-
tery-saving mode in advance.
QConditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the follow-
ing situations, the communication between
the electronic key and the vehicle may be
affected, preventing the smart access sys-
tem with push-button start, wireless remote
control and immobilizer system from oper-
ating properly.
(Ways of coping:  P.389)
OWhen the electronic key battery is
depleted
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 metal-
lic 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
OWhen other wireless keys (that emit
radio waves) are being used nearby
OWhen carrying the electronic key
together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless communication
device
• Another electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
OIf window tint with a metallic content or
metallic objects are attached to the rear
window
OWhen the electronic key is placed near a
battery charger or electronic devices
OWhen the vehicle is parked in a pay park-
ing spot where radio waves are emitted.
QNotes for the entry function
OEven when the electronic key is within the

1183-2. Opening, closing and locking the doors and trunk
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win- dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the center
of the rear bumper when the trunk is
opened.
• The electronic key is on the instrument
panel, rear package tray or floor, or in the
door pockets or glove box when the
hybrid system is started or power switch
modes are changed.
ODo not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
OAs long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only
the doors detecting the electronic key
can be used to unlock the vehicle.
OEven if the electronic key is not inside the
vehicle, it may be possible to start the
hybrid system if the electronic key is near
the window.
OThe doors may unlock or lock if a large
amount of water splashes on the door
handle, such as in the rain or in a car
wash, when the electronic key is within
the effective range. (The doors will auto-
matically be locked after approximately
60 seconds if the doors are not opened
and closed.)
OIf the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.)
OTouching the door lock sensor while
wearing gloves may delay or prevent
lock operation. Remove the gloves and
touch the lock sensor again.
OWhen the lock operation is performed
using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given.
OUnlocking the vehicle may take more
time if another electronic key is within the
effective range.
OIf the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In this case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( P.117)
OIf the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock all the doors.
OThe lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc.
Clean the lock sensor and attempt to
operate it again.
OA sudden approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
QWhen the vehicle is not driven for
extended periods
OTo prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
OThe smart access system with push-but-
ton start can be deactivated in advance.
OBattery-saving mode can reduce the
power consumption of electronic keys.
( P.117)

1484-2. Driving procedures
4-2 . D riving p roce dures
1Press the parking brake switch to
check that the parking brake is set.
( P.159)
Parking brake indicator will come on.
2 Check that the shift lever is in P.
3 Firmly depress the brake pedal.
and a message will be displayed on
the multi-information display.
If it is not displayed, the hybrid system can-
not be started.
4 Press the power switch shortly and
firmly.
When operating the power switch, one
short, firm press is enough. It is not neces-
sary to press and hold the switch.
If the “READY” indicator turns on, the
hybrid system will operate normally.
Continue depressing the brake pedal until
the “READY” indicator is illuminated.
The hybrid system can be started from any
power switch mode.
5Check that the “READY” indicator
is illuminated.
The vehicle will not move when the
“READY” indicator is off.
QPower switch illumination
According to the situation, the power
switch illumination operates as follows.
OWhen a door is opened, or the power
switch mode is changed from ACCES-
SORY or ON mode to off, the power
switch illumination slowly blinks.
OWhen depressing the brake pedal with
carrying the electronic key on your per-
son, the power switch illumination rapidly
blinks.
OWhen the power switch is in ACCES-
SORY or ON mode, the power switch
illumination illuminates.
QIf the hybrid system does not start
OThe immobilizer system may not have
been deactivated. ( P.67)
Contact your Lexus dealer.
OIf a message related to start-up is shown
on the multi-information display, read the
message and follow the instructions.
OIf the door is unlocked with the mechani-
cal key, the hybrid system cannot be
started using the smart access system
with push-button start. Refer to P.390 to
start the hybrid system. However, if the
electronic key is carried inside the vehi-
cle and the doors are locked ( P.106),
the hybrid system can be started.
QWhen the ambient temperature is low,
such as during winter driving conditions
(for vehicles sold in except Canada)
OWhen starting the hybrid system, the
flashing time of the “READY” indicator
may be long. Leave the vehicle as it is
until the “READY” indicator is steady on,
as steady means the vehicle is able to
move.
OWhen the hybrid battery (traction bat-
tery) is extremely cold (below approxi-
mately -22°F [-30°C]) under the
influence of the outside temperature, it
may not be possible to start the hybrid
Power (ignition) switch
Performing the following opera-
tions when carrying the electronic
key on your person starts the hybrid
system or changes power switch
modes.
Starting the hybrid system

1494-2. Driving procedures
4
Driving
system. In this case, try to start the hybrid
system again after the temperature of the
hybrid battery increases due to the out-
side temperature increase etc.
QSounds and vibrations specific to a
hybrid vehicle
 P.60
QIf the 12-volt battery is discharged
The hybrid system cannot be started using
the smart access system with push-button
start. Refer to P.391 to restart the hybrid
system.
QElectronic key battery depletion
 P.100
QConditions affecting operation
 P.117
QNotes for the entry function
 P.117
QSteering lock function
OAfter turning the power switch off and
opening and closing the doors, the steer-
ing wheel will be locked due to the steer-
ing lock function. Operating the power
switch again automatically cancels the
steering lock.
OWhen the steering lock cannot be
released, “Push Power Switch while
Turning Steering Wheel in Either Direc-
tion” will be displayed on the multi-infor-
mation display.
Check that the shift lever is set in P. Press
the power switch shortly and firmly while
turning the steering wh eel left and right.
OTo prevent the steering lock motor from
overheating, the motor may be sus-
pended if the hybrid system is turned on
and off repeatedly in a short period of
time. In this case, refrain from operating
the power switch. After about 10 sec- onds, the steering lock motor will resume
functioning.
QIf there is a malfunction in the smart
access system with push-button start
If “Access System with Elec. Key Malfunc-
tion See Owner’s Manual” is displayed on
the multi-information display, the system
may be malfunctioning. Have the vehicle
inspected by your Lexus dealer immedi-
ately.
QIf the “READY” indicator does not
come on
In the event that the “READY” indicator
does not come on even after performing
the proper procedures for starting the vehi-
cle, contact your Lexus dealer immediately.
QIf the hybrid system is malfunctioning
 P.65
QElectronic key battery
 P.347
QOperation of the power switch
OIf the switch is not pressed shortly and
firmly, the power switch mode may not
change or the hybrid system may not
start.
OIf attempting to restart the hybrid system
immediately after turning the power
switch off, the hybrid system may not start
in some cases. After turning the power
switch off, please wait a few seconds
before restarting the hybrid system.
QCustomization
If the smart access system with push-button
start has been deactivated in a customized
setting, refer to P.421.
WARNING
QWhen starting the hybrid system
Always start the hybrid system while sit-
ting in the driver’s seat. Do not depress
the accelerator pedal while starting the
hybrid system under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.

1644-3. Operating the lights and wipers
QAutomatic light off system
OWhen the headlights come on: The head-
lights and tail lights turn off 30 seconds
after the driver’s door is opened and
closed if the power switch is turned to
ACCESSORY mode or turned off. (The
lights turn off immediately if on
the key is pressed after all the doors are
locked.)
OWhen only the tail lights come on: The tail
lights turn off automatically if the power
switch is turned to ACCESSORY mode
or turned off and the driver’s door is
opened.
For the U.S.A.: To turn the lights on again,
turn the power switch to ON mode, or turn
the light switch off once and then back to
or .
For Canada: To turn the lights on again, turn
the power switch to ON mode, or turn the
light switch to position once and then
back to or .
QLight reminder buzzer
A buzzer sounds when the power switch is
turned off or turned to ACCESSORY
mode and the driver’s door is opened while
the lights are turned on.
QAutomatic headlight leveling system (if
equipped)
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loading condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
QWindshield wiper linked headlight illu-
mination
When driving during daytime with the
headlight switch turned to , if the wind-
shield wipers are used, the headlights will
turn on automatically after several seconds
to help enhance the visibility of your vehicle.
Q12-volt battery-saving function
In order to prevent the 12-volt battery of the
vehicle from discharging, if the headlights
and/or tail lights are on when the power
switch is turned off the 12-volt battery sav-
ing function will operate and automatically
turn off all the lights after approximately 20
minutes.
When the power switch is turned to ON
mode, the 12-volt battery-saving function
will be disabled.
When any of the following are performed,
the 12-volt battery-saving function is can-
celed once and then reactivated. All the
lights will turn off automatically 20 minutes
after the 12-volt battery-saving function has
been reactivated:
OWhen the headlight switch is operated
OWhen a door is opened or closed
QWelcome light illumination control
The parking lights, tail lights and license
plate lights automatically turn on at night
when the doors are unlocked using the
entry function or wireless remote control if
the light switch is in the position.
QIf “Headlight System Malfunction Visit
Your Dealer” is displayed
 P.377
QCustomization
Settings (e.g. light sensor sensitivity) can be
changed.
(Customizable features:  P.421)

2835-4. Using the interior lights
5
Interior features
QTurning 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.
QTurning 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.
QTurning the lights on/off
Front
Turns the lights on/off (touch the light)
Rear
Turns the lights on/off
QIlluminated entry system
The lights automatically turn on/off accord-
ing to the power switch mode, the presence
of the electronic key, whether the doors are
locked/unlocked, and whether the doors
are open/closed.
QTo prevent the 12-volt battery from
being discharged
If the interior lights remain on when the
power switch is turned off, the lights will go
off automatically after 20 minutes.
QWhen front interior light or front per-
sonal lights do not respond as normal
OWhen water, dirt, etc., have adhered to
the lens surface
OWhen operated with a wet hand
OWhen wearing gloves, etc.
QThe interior lights will turn on automati-
cally when
If any of the SRS airbags 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

2955-6. Using the other interior features
5
Interior features
Fold down the armrest for use.An assist grip installed on the ceiling
can be used to support your body
while sitting on the seat.
QRear sunshade
The rear sunshade can be raised and
lowered by operating the button
shown below.
Press the switch. (Raise/lower)
NOTICE
OWhen other wireless keys (that emit
radio waves) are being used nearby
In addition, excluding the above-men-
tioned, when the charger does not per-
form normally or the operation indicator
light is flashing continuously, it is consid-
ered that the wireless charger is malfunc-
tioning. Contact your Lexus dealer.
QTo prevent failure or damage to data
ODo not bring magnetic cards, such as
credit cards, or magnetic recording
media, etc., close to the charger while
charging, otherwise, data may disap-
pear under the influence of magne-
tism. Also, do not bring precision
instruments such as wrist watches, etc.,
close to the charger, as such objects
may break.
ODo not leave portable devices in the
cabin. The temperature inside the
cabin may become high, when under
the sun, and cause damage to the
device.
QTo prevent 12-volt battery discharge
When the hybrid system is stopped, do
not use the wireless charger for a long
time.
Armrest
NOTICE
QTo prevent damage to the armrest
Do not apply too much load on the arm-
rest.
Assist grips
WARNING
QAssist grips
Do not use the assist grip when getting in
or out of the vehicle or rising from your
seat.
NOTICE
QTo prevent damage to the assist grip
Do not hang any heavy object or put a
heavy load on the assist grip.
Rear sunshade (if
equipped)/rear door sunshades
(if equipped)