service LEXUS ES300h 2022 User Guide

1724-3. Operating the lights and wipers
tion will resume.
QTo protect the windshield wipers
If movement of the windshield wipers is
largely restricted by a foreign object such
as snow, the operation of the windshield
wipers may be stopped automatically to
protect the windshield wipers. In this case,
turn the windshield wiper switch off and
remove the foreign object, and then use the
windshield wipers.
QWhen stopping the hybrid system in an
emergency while driving
If the windshield wipers are operating when
the hybrid system is stopped, the windshield
wipers will operate in high speed operation.
After the vehicle is stopped, operation will
return to normal when the power switch is
turned to ON mode, or operation will stop
when the driver’s door is opened.
When the windshield wipers are not
being used, they retract to below the
hood. To enable the windshield wipers
to be lifted when parking in cold condi-
tions or when replacing a windshield
wiper insert, change the rest position of
the windshield wipers to the service
position using the wiper lever.
QRaising the wipers to the service
position
Within approximately 45 seconds of
turning the power swit ch off, move the
wiper lever to the (U.S.A.) or
(Canada) position and hold it for
approximately 2 seconds or more.
The wipers will move to the service posi-
tion.
WARNING
QCaution regarding the use of wind-
shield wipers in AUTO mode (vehi-
cles with rain-sensing windshield
wipers)
The windshield wipers may operate
unexpectedly if the sensor is touched or
the windshield is subject to vibration in
AUTO mode. Take care that your fin-
gers or anything else do not become
caught in the windshield wipers.
QCaution regarding the use of washer
fluid
When it is cold, do not use the washer
fluid until the windshield becomes warm.
The fluid may freeze on the windshield
and cause low visibility. This may lead to
an accident, resulting in death or serious
injury.
NOTICE
QWhen there is no washer fluid spray
from the nozzle
Damage to the washer fluid pump may
be caused if the lever is pulled toward
you and held continually.
QWhen a nozzle becomes blocked
In this case, contact your Lexus dealer.
Do not try to clear it with a pin or other
object. The nozzle will be damaged.
QTo prevent 12-volt battery discharge
Do not leave the wipers on longer than
necessary when the hybrid system is off.
Changing the windshield wiper
rest position/Lifting the wind-
shield wipers

2604-6. Driving tips
Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
• Engine coolant/power control unit cool-
ant
•Washer fluid
 Have a service technician inspect
the condition of the 12-volt 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 inspection s before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
QDriving 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.
OUse tires of the specified size.
OMaintain the recommended level of air
pressure.
ODo not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used.
OUse snow tires on all, not just some
wheels.
QDriving 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.
ODo 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.
OAvoid driving on bumpy road surfaces
or over potholes.
OAvoid sudden acceleration, abrupt
steering, sudden braking and shifting
operations that cause sudden engine
braking.
OSlow down sufficiently before entering
a curve to ensure that vehicle control
is maintained.
ODo not use LTA (Lane Tracing Assist)
system.
NOTICE
QRepairing 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

2624-6. Driving tips
Side chain:0.12 in. (3 mm) in diameter
0.39 in. (10 mm) in width
1.18 in. (30 mm) in length
Cross chain:
0.16 in. (4 mm) in diameter
0.55 in. (14 mm) in width
0.98 in. (25 mm) in length
Vehicles with 18-inch/19-inch tires
Tire chains cannot be mounted.
Snow tires should be used instead.
Regulations regarding the use of tire
chains vary depending on location and
type of road. Always check local regu-
lations before installing chains.
QTire chain installation
Observe the following precautions when
installing and re moving chains:
OInstall and remove tire chains in a safe
location.
OInstall tire chains on the front tires. Do not
install tire chains on the rear tires.
OInstall tire chains on front tires as tightly as possible. Retighten chains after driving
1/4 - 1/2 mile (0.5 - 1.0 km).
OInstall tire chains following the instruc-
tions provided with the tire chains.
To enable the windshield wipers to be
lifted when heavy snow or icy condi-
tions are expected, change the rest
position of the windshield wipers from
the retracted position below the hood
to the service position using the wiper
lever. (
P.172)
Regulations on the use of tire
chains (vehicles with 17-inch
tires)
A
B
C
D
E
F
NOTICE
QFitting tire chains
The tire pressure warning valves and
transmitters may not function correctly
when tire chains are fitted.
Windshield wipers

2735-3. Using the air conditioning system
5
Interior features
OThe meaning of each symbol on the label
are as follows:
QCustomization
Settings (e.g. A/C Auto switch operation)
can be changed.
(Customizable features: P.421)
QMain control screen
Using the touchpad of the Remote
Touch, select the button on the screen.
This system can also be operated by
the touch screen.
Sub menu
Selecting the sub menu item to switch the
main screen. : Display the air conditioning control
screen
: 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
Caution
Air conditioning system
Air conditioning system lubri-
cant type
Requires registered techni-
cian to service air conditioning
system
Flammable refrigerant
WARNING
QTo 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.
QWhen 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
QTo prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the
hybrid system is off.
QWhen repairing/replacing parts of
the air conditioning system
Have repair/replacement performed by
your Lexus dealer. When a part of the air
conditioning system, such as the evapo-
rator, is to be replaced, it must be
replaced with a new one.
Air conditioning control screen
A
B
C

307
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 308
Cleaning and protecting the vehi- cle interior ................................... 311
6-2. Maintenance Maintenance requirements ... 314
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
filter .............................................. 343
Electronic key battery ............. 347
Checking and replacing fuses ........................................................ 349
Headlight aim............................... 351
Light bulbs .................................... 352

3146-2. Maintenance
6-2.Maintenance
QRepair 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 performs repairs, confirm
the warranty coverage.
QAllow inspection and repairs to be per-
formed by a Lexus dealer
OLexus 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.
OKeep a copy of the repair 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 maintenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.
QResetting 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
QIf your vehicle is not properly main-
tained
Improper maintenance could result in
serious damage to the vehicle and possi-
ble death or serious injury.
QHandling of the 12-volt battery
OEngine 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.
OOils, 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 reproductive harm.
Avoid exposure and wash any affected
area immediately.
O12-volt battery posts, terminals and
related accessories contain lead and
lead compounds which are known to
cause brain damage. Wash your hands
after handling. ( P.328)
General maintenance
Scheduled maintenance

3156-2. Maintenance
6
Maintenance and care
3Press or of the meter control
switches and select “Scheduled Mainte-
nance”. Then press “OK”.
4 Select “Yes” and press “OK”.
A message will be displayed when the reset
procedure has been completed.
You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage.
The use of Lexus repair manuals is recom-
mended.
For details about warranty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.
Do-it-yourself maintenance
General maintenance
Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice shou ld be brought to
the attention of your Lexus dealer
or qualified service shop for advice.
WARNING
QIf the hybrid system is operating
Turn the hybrid system off and ensure
that there is adequate ventilation before
performing maintenance checks.
Engine compartment
ItemsCheck points
Brake fluid
Is the brake fluid at the
correct level?
(  P.327)
Engine/power
control unit cool-
antIs the engine/power
control unit coolant at
the correct level?
( P.325)
Engine oil
Is the engine oil at the
correct level?
( P.323)
Exhaust system
There should not be
any fumes or strange
sounds.

3186-2. 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

3196-3. Do-it-yourself maintenance
6
Maintenance and care
6-3.Do-it-yo urself mainte nance
Do-it-yourself service pre-
cautions
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.328)•Grease
• Conventional wrench
(for terminal clamp
bolts)
Brake fluid
level
( P.327)
• FMVSS No.116 DOT 3
or SAE J1703 brake
fluid
FMVSS No.116 DOT 4
or SAE J1704 brake
fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit
coolant level
( P.325)
•“Toyota Super Long
Life Coolant” or a simi-
lar high quality eth-
ylene glycol-based
non-silicate, non-amine,
non-nitrite and non-
borate coolant with
long-life hybrid organic
acid technology
For the U.S.A.:
“Toyota Super Long
Life Coolant” is pre-
mixed with 50% cool-
ant and 50% deionized
water.
For Canada:
“Toyota Super Long
Life Coolant” is pre-
mixed with 55% cool-
ant and 45% deionized
water.
• Funnel (used only for adding coolant)
Hybrid bat-
tery (traction
battery) air
intake vent
( P.343)
• Vacuum cleaner, etc.
• Phillips screwdriver
Engine oil level
( P.323)
•“Toyota Genuine
Motor Oil” or equiva-
lent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P.349)• Fuse with same amper-
age rating as original
Headlight aim• Phillips-head screw-driver
ItemsParts and tools

3256-3. Do-it-yourself maintenance
6
Maintenance and care
between oil maintenance intervals.
OWhen the engine is new, for example
directly after purchasing the vehicle or
after replacing the engine
OIf low quality oil or oil of an inappropriate
viscosity is used
OWhen driving at high engine speeds or
with a heavy load, or when driving while
accelerating or decelerating frequently
OWhen leaving the engine idling for a long
time, or when driving frequently through
heavy traffic
QAfter changing the engine oil
The engine oil maintenance data should be
reset. Perform the following procedures:
1 While the vehicle is stopped, press
of the meter control switches.
2 Press or of the meter control
switches, and select .
3 Press or of the meter control
switches, select “Vehicle Settings”, and
then press “OK”.
4 Press or of the meter control
switches, select “O il Maintenance”, and
then press “OK”.
5 Select “Yes” and then press “OK”.
A message will be displayed on the multi-
information display when the reset proce-
dure has been completed.
The coolant level is satisfactory if it is
between the “F”/“FULL” and
“L”/“LOW” lines on the reservoir when
the hybrid system is cold.
QEngine coolant reservoir
WARNING
QUsed engine oil
OUsed engine oil contains potentially
harmful contaminants which may
cause skin disorders such as inflamma-
tion and skin cancer, so care should be
taken to avoid prolonged and
repeated contact. To remove used
engine oil from your skin, wash thor-
oughly with soap and water.
ODispose of used oil an d filters only in a
safe and acceptable manner. Do not
dispose of used oil and filters in house-
hold trash, in sewers or onto the
ground.
Call your Lexus dealer, service station
or auto parts store for information
concerning recycling or disposal.
ODo not leave used engine oil within the
reach of children.
NOTICE
QTo prevent serious engine damage
Check the oil level on a regular basis.
QWhen replacing the engine oil
OBe careful not to spill engine oil on the
vehicle components.
OAvoid overfilling, or the engine could
be damaged.
OCheck the oil level on the dipstick
every time you refill the vehicle.
OBe sure the engine oil filler cap is prop-
erly tightened.
Checking the coolant