2022 LEXUS ES300h key battery

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Pictorial indexSearch by illustration
For safety and
securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before drivingOpening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats, power windows)
DrivingOperations and advice which are necessary for driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance and
careCaring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: 12-volt battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat belt,
SRS airbag and headlight aim instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

4TABLE OF CONTENTS
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 fil-
ter..................................................... 343
Electronic key battery ................ 347
Checking and replacing fuses 349
Headlight aim.................................. 351
Light bulbs ....................................... 352
7-1. Essential information Emergency flashers..................... 358
If your vehicle has to be stopped in an emergency ............................. 358
If the vehicle is submerged or water on the road is rising .................. 359
7-2. Steps to take in an emergency If your vehicle needs to be towed............................................................ 361
If you think something is wrong ........................................................... 362
If a warning light turns on or a warn- ing buzzer sounds ..................... 364If a warning message is displayed
.......................................................... 374
If you have a flat tire .................... 379
If the hybrid system will not start .......................................................... 386
If you lose your keys.................... 388
If the fuel filler door cannot be opened .......................................... 388
If the electronic key does not oper- ate properly ................................. 389
If the 12-volt battery is discharged ........................................................... 391
If your vehicle overheats ........... 396
If the vehicle becomes stuck ... 399
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 402
Fuel information............................. 410
Tire information .............................. 412
8-2. Customization Customizable features ................ 421
8-3. Items to initialize Items to initialize ........................... 433
9-1. For owners Reporting safety defects for U.S. owners ........................................... 436
Reporting safety defects for Cana- dian owners ................................. 436
Seat belt instructions for Canadian owners (in French) ................... 437
7When trouble arises
8Vehicle specifications
9For owners

691-5. Theft deterrent system
1
For safety and security
OFor Canada: The doors are unlocked
using the mechanical key.
OThe trunk is unlocked using the mechani-
cal key.
OA person inside the vehicle opens a door,
the trunk or hood, or unlocks the vehicle
using a door lock switch.
OThe 12-volt battery is recharged or
replaced when the vehicle is locked.
( P.393)
QAlarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to
prevent improper entry into the vehicle:
OWhen a person remaining in the vehicle unlocks the door and the alarm is acti-
vated.
OWhile the alarm is activated, a person
remaining in the vehicle unlocks the door.
OWhen recharging or replacing the 12-
volt battery
NOTICE
QTo ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.

1003-1. Key information
3-1.Key information
The following keys are provided with
the vehicle.Electronic keys
• Operating the smart access system with push-button start ( P.115)
• Operating the wireless remote control function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P.115)
QCard key (if equipped)
OThe card key is not waterproof.
OThe mechanical key that is stored inside
the card key should be used only if a
problem arises, such as when the card key does not operate properly.
OIf it is difficult to take out the mechanical
key, push down the lock release button
using a pen tip etc. If it is still difficult to
pull it out, use a coin etc.
OTo store the mechanical key in the card
key, insert it while pressing the lock
release button.
OIf the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
QWhen riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that
the buttons are not likely to be pressed
accidentally. Pressing a button may cause
the electronic key to emit radio waves that
could interfere with the operation of the air-
craft.
QElectronic key battery depletion
OThe standard battery life is 1 to 2 years.
(The card key battery life is from one year
to one year and a half.)
OIf the battery becomes low, an alarm will
sound in the cabin when the hybrid sys-
tem is stopped.
OBattery-saving mode can reduce the
Keys
Key types
A
B
C
D

1013-1. Key information
3
Before driving
power consumption of electronic keys
that are not used for long periods of time.
( P.117)
OAs the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary. ( P.347)
• The smart access system with push-but-
ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You can replace the battery by yourself
(  P.347). However, as there is a danger
that the electronic key may be damaged, it
is recommended that replacement be car-
ried out by your Lexus dealer.
OTo avoid serious deterioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electrical appliances that
produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
QReplacing the battery
 P.347
QConfirmation of the registered key
number
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
QIf “A New Key has been Registered
Contact Your Dealer for Details” is
shown on the multi-information display
This message will be displayed each time
the driver’s door is opened when the doors
are unlocked from the outside for approxi-
mately 10 days after a new electronic key
has been registered.
If this message is displayed but you have not had a new electronic key registered, ask
your Lexus dealer to check if an unknown
electronic key (other than those in your
possession) has been registered.
NOTICE
QTo prevent key damage
ODo not drop the keys, subject them to
strong shocks or bend them.
ODo not expose the keys to high tem-
peratures for long periods of time.
ODo not get the keys wet or wash them
in an ultrasonic washer etc.
ODo not attach metallic or magnetic
materials to the keys or place the keys
close to such materials.
ODo not disassemble the keys.
ODo not attach a sticker or anything else
to the surface of the electronic key.
ODo not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers.
ODo not place the keys near medical
electrical equipment such as low-fre-
quency therapy equipment or micro-
wave therapy equipment, and do not
receive medical attention with the keys
on your person.
QCarrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric appliances within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
QIn case of a smart access system with
push-button start malfunction or
other key-related problems
 P.389
QWhen an electronic key is lost
 P.388

1023-1. Key information
The electronic keys are equipped with
the following wireless remote control:Locks the doors (
P.104)
Unlocks the doors ( P.104)
Opens the windows and moon
roof
* (  P.104)
Opens the trunk ( P.111)
Sounds the alarm ( P.102)
*: This setting must be customized at your
Lexus dealer.
QTheft deterrent panic mode
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will flash
to deter any person from trying to break
into or damage your vehicle.
To stop the alarm, press any button on the
electronic key.
To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be inserted in
one direction, as the key only has grooves
NOTICE
QHandling the card key (if equipped)
ODo not apply excess force when
inserting the mechanical key into the
card key. Doing so may damage the
card key.
OIf the battery or card key terminals get
wet, the battery may corrode and the
card key may stop working.
If the key is dropped into water, or if
drinking water, etc. is spilled on the
key, immediately remove the battery
cover and wipe the battery and termi-
nals. (To remove th e battery cover,
lightly grasp and pull it .) If the battery is
corroded, have your Lexus dealer
replace the battery.
ODo not crush the battery cover or use
a screwdriver to re move the battery
cover. Forcibly re moving the battery
cover may bend or damage the key.
OIf the battery cover is frequently
removed, the battery cover may
become loose.
OWhen installing the battery, make sure
to check the direction of the battery.
Installing the battery in the wrong
direction may cause the battery to
deplete rapidly.
OThe surface of the card key may be
damaged, or its coating may peel off in
the following situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.
Wireless remote control
Using the mechanical key
A
B
C
D
E

1033-1. Key information
3
Before driving
on one side. If the key cannot be inserted in
a lock cylinder, turn it over and re-attempt
to insert it.
After using the mechanical key, store it in
the electronic key. Carry the mechanical
key together with the electronic key. If the
electronic key battery is depleted or the
entry function does not operate properly,
you will need the mechanical key.
( P.389)
QWhen required to leave the vehicle’s
key with a parking attendant
Turn the trunk opener main switch off
(  P.114), lock the glove box ( P.286)
and armrest door ( P.297) as circum-
stances demand.
Remove the mechanical key for your own
use and provide the attendant with the elec-
tronic key only.
QIf you lose your mechanical keys
 P.388

1053-2. Opening, closing and locking the doors and trunk
3
Before driving
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. (P.68)
QImpact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, all the doors are unlocked.
Depending on the force of the impact or the
type of accident, however, the system may
not operate.
QOperation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocked. (Locked: once;
Unlocked: twice)
A buzzer sounds to indicate that the win-
dows and moon roof are opening.
QSecurity feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked,
the security feature automatically locks the
vehicle again. (However, depending on the
location of the electronic key, the key may
be detected as being in the vehicle. In this
case, vehicle may be unlocked.)
QWhen the doors cannot be locked by
the lock sensor on the upper part of the
door handle
When the doors cannot be locked even if
the lock sensor on the surface of the door
handle is touched by a finger, touch the lock
sensor with the palm.
If you are wearing gloves, remove them.
QDoor lock buzzer
If an attempt to lock the doors using the
smart access system with push-button start
is made when a door other than the door
you are locking is open, a buzzer sounds
continuously for 5 seconds. Fully close all
the doors, and lock the vehicle once more.
QSetting the alarm
Locking the doors will set the alarm system.
(  P.68)
QConditions affectin g the operation of
the smart access system with push-but-
ton start or wirele ss remote control
 P.117
QIf the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
Use the mechanical key to lock and unlock
the doors. ( P.389)
Replace the key battery with a new one if it
is depleted. ( P.347)
QIf the 12-volt battery is discharged
The doors cannot be locked and unlocked
using the smart access system with push-
button start or wireless remote control.
Multi-information display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Holding the driver’s
door handle unlocks
only the driver’s door.
Holding a passenger’s
door handle unlocks all
the doors.
Exterior: Beeps twice
Interior: Pings onceHolding a door handle
unlocks all the doors.