key LEXUS ES300h 2021 Service Manual

2885-6. Using the other interior features
• Repeatedly flashes 3 times continuously (Orange)
• Repeatedly flashes 4 times continuously (Orange)
■The wireless charger can be operated
when
The power switch is in ACCESSORY or
ON mode.
■Usable portable devices
●Qi standard wireless charge standard
can be used on compatible devices.
However, not all Qi standard devices and
compatibility are guaranteed.
●Starting with mobile phones and smart
phones, it is aimed for low power electri-
cally supplied portab le devices of no
more than 5W.
■When covers and accessories are
attached to portable devices
Do not charge in situations where cover
and accessories not able to handle Qi are
attached to the portable device. Depending
on the type of cover and accessory, it may
not be possible to charge. When charging is not performed even with the portable
device placed on the charge area, remove
the cover and accessories.
■While charging, noise enters the AM
radio
Turn off the wireless charger and confirm
that the noise has decreased. If the noise
decreases, continuously pushing the power
supply switch of the wireless charger for 2
seconds, the frequency of the charger can
be changed and the noise can be reduced.
Also, on that occasion, the operation indi-
cator light will flash orange 2 times.
■Important points of the wireless charger
●If the electronic key cannot be detected
within the vehicle interior, charging can-
not be done. When the door is opened
and closed, charging may be temporarily
suspended.
●When charging, the wireless charging
device and portable device will get
warmer, however this is not a malfunc-
tion.
When a portable devi ce 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 port able device drops
significantly, charge again.
■Operation 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.
Suspected causesHandling method
A foreign substance
is between the por-
table device and
charge area.Remove the foreign
substance from
between portable
device and the
charge area.
The portable device
is out of sync due to
the device being
shifted from the cen-
ter of the charge
area.
Place the portable
device near the cen-
ter of the charge
area.
Suspected causeHandling method
Temperature rising
within the wireless
charger.Stop charging at
once and start
charging again after
for a while.

2925-6. Using the other interior features
WARNING
■Caution 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.
■Caution regarding interference with
electronic devices
People with implantable cardiac pace-
makers, cardiac resy nchronization 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.
■To 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.
●Do not insert any metallic objects
between the charging area and the
portable device while charging
●Do not attach stickers, metallic
objects, etc., to the charger area or
portable device
●Do not cover with cloth, etc., and
charge
●Do not charge portable devices other
than designated
●Do not attempt to dismantle for disas-
sembly or modifications
●Do not hit or apply a strong force
NOTICE
■Conditions in which the function may
not operate correctly
In the following conditions, it may not
operate correctly
●The portable device is fully charged
●There is foreign matter between the
charge area and portable device
●The temperature of the portable
device gets higher from charging
●The charging surface of the portable
device is facing up
●The placement of the portable device
is out of alignmen t with the charge
area
●Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other fac ility that generates
strong radio waves or electrical noise
●When 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
●When 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 wirele ss charger is malfunc-
tioning. Contact your Lexus dealer.
■To prevent failure or damage to data
●Do 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.

2955-6. Using the other interior features
5
Interior features
vehicle by utilizing the trunk space and
rear seat area.
1Fold down the armrest.
2 Fold down the handle and open the
armrest door.
The armrest door can be locked and
unlocked using the mechanical key.
Unlock
Lock
The coat hooks are provided with the
rear assist grips.
WARNING
■When not in use
Ensure that the armrest door is closed. In
the event of sudden braking, items stored
in the trunk may be thrown forward into
the cabin, resulting in injury.
Coat hooks
A
B
WARNING
■Items that should not be hanged
Do not hang coat hangers or other hard
or sharp objects on the hook. If the SRS
curtain shield airbag s deploy, these items
may become projectiles, causing death
or serious injury.

305
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 306
Cleaning and protecting the vehi- cle interior ................................. 309
6-2. Maintenance Maintenance requirements ... 312
General maintenance .............. 313
Emission inspection and mainte- nance (I/M) programs .......... 316
6-3. Do-it-yourself maintenance Do-it-yourself service precautions......................................................... 317
Hood................................................ 319
Positioning a floor jack............. 319
Engine compartment................ 321
12-volt battery............................. 326
Tires ................................................ 329
Tire inflation pressure .............. 339
Wheels............................................ 341
Air conditioning filter...............342
Cleaning the hybrid battery (trac- tion battery) air intake vent and
filter .............................................. 344
Electronic key battery ............. 347
Checking and replacing fuses ........................................................ 349
Headlight aim............................... 351
Light bulbs .................................... 352

3066-1. Maintenance and care
6-1.Maintenance and care
Working from top to bottom, liber-
ally apply water to the vehicle body,
wheel wells and underside of the
vehicle to remove any dirt and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use car
wash soap and rinse thoroughly with
water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates.
If water does not bead on a clean surface,
apply wax when the vehicle body is cool.
■Self-restoring coat
The vehicle body has a self-restoring coat-
ing that is resistant to small surface
scratches caused in a car wash etc.
●The coating lasts for 5 to 8 years from
when the vehicle is delivered from the
plant.
●The restoration time differs depending on
the depth of the scratch and outside tem-
perature.
The restoration time may become
shorter when the coating is warmed by
applying warm water.
●Deep scratches caused by keys, coins,
etc. cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Fold the mirrors befo re washing the vehi-
cle. Start washing from the front of the
vehicle. Make sure to extend the mirrors
before driving.
●Brushes used in automatic car washes
may scratch the vehicle surface, parts
(wheel, etc.) and harm your vehicle’s
paint.
●Rear spoiler may not be washable in
some automatic car washes. There may
also be an increased risk of damage to
vehicle.
■High pressure car washes
As water may enter the cabin, do not bring
the nozzle tip near the gaps around the
doors or perimeter of windows, or spray
these areas continuously.
■Notes for the smart access system with
push-button start
If the door handle becomes wet while the
electronic key is within the effective range,
the door may lock and unlock repeatedly. In
that case, follow the following correction
procedures to wash the vehicle:
●Place the key in a position 6 ft. (2 m) or
more separate from the vehicle while the
vehicle is being wash ed. (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.113)
■Wheels and wheel ornaments
●Remove any dirt immediately by using a
neutral detergent.
●Wash detergent off with water immedi-
ately after use.
●To protect the paint from damage, make
sure to observe the following precau-
tions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or
parking in hot weather
■Bumpers
Do not scrub with abrasive cleaners.
Cleaning and protecting the
vehicle exterior
Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3266-3. Do-it-yourself maintenance
The 12-volt battery is located on the
right-hand side of the trunk.
■Before recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to dis-
connect the ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12-
volt battery
●Unlocking the doors using the smart
access system with pu sh-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
●Start the hybrid system with the power
switch in ACCESSORY mode. The
hybrid system may not start with the
power switch turned off. However, the
hybrid system will operate normally from
the second attempt.
●The power switch mode is recorded by
the vehicle. If the 12-volt battery is recon-
nected, the vehicle will return the power
NOTICE
■Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

3476-3. Do-it-yourself maintenance
6
Maintenance and care
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-but-
ton start and wireless remote control will
not function properly.
●The operationa l range will be reduced.
Prepare the following before replacing
the battery:
Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent
type recommended by the manufacturer.
●Dispose of used batteries according to
the local laws.
1Take out the mechanical key.
NOTICE
■To prevent damage to the vehicle
●Do not allow water or foreign matter
to enter the air intake vent when the
cover is removed.
●Carefully handle the removed filter so
that it will not be damage.
If the filter is damaged, have it
replaced with a new filter by your
Lexus dealer.
●Make sure to reinst all the filter and
cover to their original positions after
cleaning.
●Do not install anything to the air intake
vent other than the exclusive filter for
this vehicle or use the vehicle without
the filter installed.
■If “Maintenance required for Trac-
tion battery cooling parts See
owner’s manual” is displayed on the
multi-information display
If the vehicle is continuously driven with
the warning message (indicating that
charging/discharging of the hybrid bat-
tery (traction battery) may become lim-
ited) displayed, the hybrid battery
(traction battery) may malfunction.
Electronic key battery
Replace the battery with a new one
if it is depleted.
Items to prepare
Replacing the battery

3486-3. Do-it-yourself maintenance
2Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
3Remove the depleted battery.
Insert a new battery with the “+” terminal
facing up.
WARNING
■Battery precautions
Observe the following precautions. Fail-
ure to do so may result in death or seri-
ous injury.
●Do not swallow the battery. Doing so
may cause chemical burns.
●A coin battery or button battery is
used in the electronic key. If a battery
is swallowed, it may cause severe
chemical burns in as little as 2 hours
and may result in death or serious
injury.
●Keep away new and removed batter-
ies from children.
●If the cover cannot be firmly closed,
stop using the electronic key and stow
the key in the place where children
cannot reach, and then contact your
Lexus dealer.
●If you accidentally swallow a battery or
put a battery into a part of your body,
get emergency medical attention
immediately.
■To prevent battery explosion or leak-
age of flammable liquid or gas
●Replace the battery with a new battery
of the same type. If a wrong type of
battery is used, it may explode.
●Do not expose batteries to extremely
low pressure due to high altitude or
extremely high temperatures.
●Do not burn, break or cut a battery.
NOTICE
■When replacing the battery
Use a screwdriver of appropriate size.
Applying excessive force may deform or
damage the cover.
■For normal operation after replacing
the battery
Observe the following precautions to
prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to
rust.
●Do not touch or move any other com-
ponent inside the remote control.
●Do not bend either of the battery ter-
minals.

357
7
7
When trouble arises
When trouble arises
7-1. Essential informationEmergency flashers.................. 358
If your vehicle has to be stopped in an emergency ..................... 358
If the vehicle is trapped in rising water............................................ 359
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................................... 361
If you think something is wrong ........................................................ 364
If a warning light turns on or a warning buzzer sounds ....... 365
If a warning message is displayed ........................................................ 375
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 operate properly .................... 389
If the 12-volt battery is discharged ......................................................... 391
If your vehicle overheats ........ 396
If the vehicle becomes stuck 399

3787-2. Steps to take in an emergency
schedule* should be performed soon.
Comes on approximately 4500 miles
(7200 km) after the message has been
reset. If necessary, perform maintenance.
Please reset the message after the mainte-
nance is performed. ( P.312)
*: Refer to the separa te “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
■If “Maintenance Required Visit Your
Dealer” is displayed
Indicates that all maintenance is required to
correspond to the driven distance on the
maintenance schedule
*.
Comes on approximately 5000 miles
(8000 km) after the message has been
reset. (The indicator will not work properly
unless the message ha s been reset.) Per-
form the necessary maintenance. Please
reset the message after the maintenance is
performed. ( P.312)
*: Refer to the separa te “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
■If “Oil Maintenance Required Soon” is
displayed
Indicates that the engine oil should be
scheduled to be changed.
Check the engine oil and change it if neces-
sary. After changing the engine oil, make
sure to reset the message. ( P.312)
■If “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed.
Check and change the en gine oil, and oil fil-
ter by your Lexus de aler. After changing
the engine oil, make sure to reset the mes-
sage. ( P.323)
■If a message that in dicates the need for
visiting your Lexus dealer is displayed
The system or part shown on the multi-
information display is malfunctioning. Have
the vehicle inspected by your Lexus dealer immediately.
■If a message that indicates the need for
referring to Owner’
s Manual is dis-
played
●If any of the following messages are
shown on the multi-information display,
follow the instructions.
• “Engine Coolant Temp High” ( P.396)
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfunction. Have the
vehicle inspected by your Lexus dealer
immediately.
• “Access System with Elec. Key Malfunc-
tion”
• “Hybrid system malfunction”
•“Check Engine”
• “Hybrid battery system malfunction”
• “Accelerator system malfunction”
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfun ction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
●If any of the following messages are
shown on the multi-information display,
the vehicle may have run out of fuel. Stop
the vehicle in a safe place and, if the fuel
level is low, refuel the vehicle. ( P.64)
• “Hybrid system stopped”
• “Engine stopped”
●If “Low Auxiliary Battery” is shown
• When the display goes off after several
seconds
*:
Maintain the hybrid system operation for
more than 15 minutes and charge the 12-
volt battery.
• When the display does not go off:
Start up the hybrid system using the proce-
dures for “If the 12-volt battery is dis-
charged” ( P.391).
*: Displays for about 6 seconds
●If “Maintenance required for Traction
battery cooling parts” is shown, the filter
may be clogged, the air intake vent may