maintenance LEXUS ES300h 2022 Owner's Guide

3306-3. Do-it-yourself maintenance
Make sure that the 12-volt battery ter-
minals are not corroded and that there
are no loose connections, cracks, or
loose clamps.Terminals
Hold-down clamp Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as exces-
sive wear on one side of the tread.
Check the spare tire condition and
pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
Exterior
A
B
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C

3316-3. Do-it-yourself maintenance
6
Maintenance and care
tors are showing on a tire.
QWhen to replace your vehicle’s tires
OTires should be replaced if:
• The treadwear indicators are showing on
a tire.
• You have tire damage such as cuts, splits, cracks deep enough to expose the fabric,
and bulges indicating internal damage
• A tire goes flat repeatedly or cannot be properly repaired due to the size or loca-
tion of a cut or other damage
If you are not sure, consult your Lexus
dealer.
OVehicles with 17-inch tires:
The wheel angle differs from vehicles
equipped with 18-inch/19-inch tires. There-
fore, 18-inch/19-inch tires cannot be
installed, as sufficient gaps with surrounding
parts cannot be ensured.
QTire life
Any tire over 6 years old must be checked
by a qualified technician even if it has sel-
dom or never been used or damage is not
obvious.
QLow profile tires (18-inch/19-inch tires)
Generally, low profile tires will wear more
rapidly and tire grip performance will be
reduced on snowy and/or icy roads when
compared to standard tires. Be sure to use
snow tires on snowy and/or icy roads and
drive carefully at a speed appropriate for
road and weather conditions.
QMaximum load of tire
Check that the maximum load of the
replacement tire is greater than 1/2 of the
Gross Axle Weight Ratings (GAWR) of
either the front axle or the rear axle, which-
ever is greater.
For the GAWR, see the Certification Label.
For the maximum load of the tire, see the
load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the
tire. ( P.412)
QTire types
OSummer tires
Summer tires are high-speed perfor-
mance tires best suited to highway driv-
ing under dry conditions. Since summer
tires do not have the same traction per-
formance as snow tires, summer tires are
inadequate for driving on snow-covered
or icy roads. For driving on snow-cov-
ered roads or icy roads, the use of snow
tires is recommended. When installing
snow tires, be sure to replace all four
tires.
OAll season tires
All season tires are designed to provide
better traction in snow and to be ade-
quate for driving in most winter condi-
tions as well as for use year-round. All
season tires, howeve r, do not have ade-
quate traction performance compared
with snow tires in heavy or loose snow.
Also, all season tires fall short in accelera-
tion and handling performance com-
pared with summer tires in highway
driving.
OSnow tires
For driving on snow-covered roads or icy
roads, we recommend us ing snow tires. If
you need snow tires, select tires of the
same size, construction and load capacity
as the originally installed tires. Since your
vehicle has radial tires as original equip-
ment, make sure your snow tires also
have radial construction. Do not install
studded tires without first checking local
regulations for possible restrictions.
Snow tires should be installed on all
wheels. ( P.260)
QIf the tread on snow tires wears down
below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is
lost.

3326-3. Do-it-yourself maintenance
Rotate the tires in the order shown.
To equalize tire wear and extend tire life,
Lexus recommends that tire rotation is car-
ried out at the same interval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.
QWhen rotating the tires
Make sure that the power switch is off. If the
tires are rotated while the power switch is in
ON mode, the tire position information will
not be updated.
If this accidentally occurs, either turn the
power switch to off and then to ON mode,
or initialize the system after checking that
the tire pressure is properly adjusted.
WARNING
QWhen inspecting or replacing tires
Observe the following precautions to
prevent accidents.
Failure to do so may cause damage to
parts of the drivetrain as well as danger-
ous handling characteristics, which may
lead to an accident re sulting in death or
serious injury.
ODo not mix tires of different makes,
models or tread patterns.
Also, do not mix tires of remarkably
different treadwear.
ODo not use tire sizes other than those
recommended by Lexus.
ODo not mix differently constructed
tires (radial, bias-belted or bias-ply
tires).
ODo not tow if your vehicle has a com-
pact spare tire installed.
ODo not mix summer, all season and
snow tires.
ODo not use tires that have been used
on another vehicle.
Do not use tires if you do not know
how they were used previously.
NOTICE
QDriving on rough roads
Take particular car e when driving on
roads with loose surfaces or potholes.
These conditions may cause losses in tire
inflation pressure, reducing the cushion-
ing ability of the tires. In addition, driving
on rough roads may cause damage to
the tires themselves, as well as the vehi-
cle’s wheels and body.
QLow profile tires (18-inch/19-inch
tires)
Low profile tires may cause greater dam-
age than usual to the tire wheel when
sustaining impact from the road surface.
Therefore, pay attention to the following:
OBe sure to use proper tire inflation
pressure. If tires are under-inflated,
they may be damaged more severely.
OAvoid potholes, uneven pavement,
curbs and other road hazards. Failure
to do so may lead to severe tire and
wheel damage.
QIf tire inflation pressure of each tire
becomes low while driving
Do not continue driving, or your tires
and/or wheels may be ruined.
Tire rotation

3336-3. Do-it-yourself maintenance
6
Maintenance and care
Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low tire inflation pressure
before serious problems arise.
If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( P.368)
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( P.85)
The illustration used is intended as an
example, and may differ from the image
that is actually displayed on the multi-infor-
mation display.
QRoutine tire inflation pressure checks
The tire pressure warning system does not
replace routine tire inflation pressure
checks. Make sure to check tire inflation
pressure as part of your routine of daily
vehicle checks.
QTire inflation pressure
OIt may take a few minutes to display the
tire inflation pressure after the power
switch is turned to ON mode.
It may also take a few minutes to display
the tire inflation pressure after inflation
pressure has been adjusted.
OTire inflation pressure changes with tem-
perature. The displayed values may also
be different from the values measured
using a tire pressure gauge.
QSituations in which the tire pressure
warning system may not operate prop-
erly
OIn the following cases, the tire pressure
warning system may not operate prop-
erly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is
not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehi-
cle, particularly around the wheels or
wheel housings.
• If the tire inflation pressure is extremely
higher than the specified level.
• If wheel without tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warn- ing valves and transmitters is not regis-
tered in the tire pressure warning
computer.
OPerformance may be affected in the fol-
lowing situations.
• Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates
strong radio waves or electrical noise
• When carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
If tire position information is not correctly
displayed due to the radio wave conditions,
the display may be corrected by driving and
changing the radio wave conditions.
OWhen the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
OWhen tire inflation pressure declines rap-
idly for example when a tire has burst, the
warning may not function.
Tire pressure warning system

3346-3. Do-it-yourself maintenance
QWarning performance of the tire pres-
sure warning system
The warning of the tire pressure warning
system will change in accordance with driv-
ing conditions. For this reason, the system
may give a warning even if the tire pressure
does not reach a low enough level, or if the
pressure is higher than the pressure that
was adjusted to when the system was initial-
ized.
When replacing tires or wheels, tire
pressure warning valves and transmit-
ters must also be installed.
When new tire pressure warning
valves and transmitters are installed,
new ID codes must be registered in the
tire pressure warning computer and
the tire pressure warning system must
be initialized. ( P.336)
QWhen replacing the tires and wheels
If the ID code of the tire pressure warning
valve and transmitter is not registered, the
tire pressure warning system will not work
properly. After driving for about 20 min-
utes, the tire pressure warning light blinks
for 1 minute and stays on to indicate a sys-
tem malfunction.
QThe tire pressure warning system
must be initialized in the following
circumstances:
 When rotating the tires.
 When the tire inflation pressure is
changed when changing traveling
speed.
 When the tire inflation pressure is
changed such as when changing tire
size. (When there are multiple spec-
ified pressures)
 After registering the ID codes.
( P.336)
When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark
pressure.
Installing tire pressure warning
valves and transmitters
NOTICE
QRepairing or replacing tires, wheels,
tire pressure warning valves, trans-
mitters and tire valve caps
OWhen removing or fitting the wheels,
tires or the tire pressure warning
valves and transmitters, contact your
Lexus dealer as the tire pressure warn-
ing valves and transmitters may be
damaged if not handled correctly.
OMake sure to install the tire valve caps.
If the tire valve caps are not installed,
water could enter the tire pressure
warning valves and the tire pressure
warning valves could be bound.
OWhen replacing tire valve caps, do not
use tire valve caps other than those
specified. The cap may become stuck.
QTo avoid damage to the tire pressure
warning valves and transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used, contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and
transmitter when replacing the tire.
(  P.334)
Initializing the tire pressure
warning system

3356-3. Do-it-yourself maintenance
6
Maintenance and care
QHow to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
stop the hybrid system for 20 min-
utes or more.
Initialization cannot be performed while
the vehicle is moving.
2Adjust the tire inflation pressure to
the specified cold tire inflation
pressure level.
Make sure to adjust the tire pressure to the
specified cold tire inflation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3Start the hybrid system ( P.148)
4 Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS”,
then press “OK”.
7 Press or of the meter con-
trol switches and select “Set Pres-
sure”. Then press and hold “OK”
until the tire pressure warning light
starts blinking.
A message is displayed on the multi-infor-
mation display. Also, “--” is displayed for
inflation pressure of each tire on the multi-
information display while the tire pressure warning system determines the position.
8
Drive at approximately 25 mph
(40 km/h) or more for approxi-
mately 10 to 30 minutes.
When initialization is complete, the infla-
tion pressure of each tire will be displayed
on the multi-information display.
Even if the vehicle is not driven at approxi-
mately 25 mph (40 km/h) or more, initial-
ization can be completed by driving for a
long time. However, if initialization does
not complete after driving for 1 hour or
more, park the vehicle in a safe place for
approximately 20 minutes and then drive
the vehicle again.
QWhen initializing
OInitialization is perfor med while driving at
a vehicle speed of approximately 25 mph
(40 km/h) or more.
OMake sure to carry out initialization after
adjusting the tire inflation pressure.
Also, make sure the tires are cold before
carrying out initializatio n or tire inflation
pressure adjustment.
OThe tire pressure warning system can be
initialized by yourself, but depending on
the driving conditions and driving envi-
ronment, initialization may take some
time to complete.
QThe initialization operation
OIf you have accidentally turned the power
switch off during initialization, it is not
necessary to manually restart the initial-
ization again, as initialization will restart
automatically the next time the power
switch is turned to ON mode.

3366-3. Do-it-yourself maintenance
OIf you accidentally perform initialization
when initialization is not necessary, adjust
the tire inflation pressure to the specified
level when the tires are cold, and conduct
initialization again.
OWhile the position of each tire is being
determined and the inflation pressures
are not being displayed on the multi-
information display, if the inflation pres-
sure of a tire drops, the tire pressure
warning light will come on.
QIf the tire pressure warning system is not
initialized properly
OIn the following situations, initialization
may take longer than usual to be com-
pleted or may not be possible. Normally,
initialization completes within approxi-
mately 30 minutes.
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven near other vehicles and system cannot recognize tire pressure
warning valve and transmitters of your
vehicle over those of other vehicles
If initialization does not complete after driv-
ing for 1 hour or more, park the vehicle in a
safe place for approximately 20 minutes
and then drive the vehicle again.
OIf the vehicle is reversed during initializa-
tion, the data up to that point is reset, so
perform the initia lization procedure
again from the beginning.
OIn the following situations, initialization
will not be started or was not completed
properly and the system will not operate
properly. Perform the initialization pro-
cedure again.
• If, when attempting to start initialization,
the tire pressure warning light does not
blink 3 times.
• If, when the vehicle has been driven for
about 20 minutes afte r performing initial-
ization, the tire pressure warning light
blinks for approximately 1 minute and
then illuminates.
If initialization cannot be completed after
performing the above procedure, contact
your Lexus dealer.
Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is neces-
sary to register the ID code.
When registering the ID codes, per-
form the following procedure.
1 Park the vehicle in a safe place, wait
for approximately 20 minutes, and
then start the hybrid system.
( P.148)
2 Press or of the meter con-
trol switches and select .
3 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
4 Press or of the meter con-
trol switches and select “TPWS”,
and then press “OK”.
5 Press or of the meter con-
trol switches and select “Change
Wheel Set”. Then press and hold
“OK” until the tire pressure warn-
WARNING
QWhen initializing the tire pressure
warning system
Do not initialize tire inflation pressure
without first adjusting the tire inflation
pressure to the specified level. Other-
wise, the tire pressure warning light may
not come on even if the tire inflation
pressure is low, or it may come on when
the tire inflation pressure is actually nor-
mal.
Registering ID codes

3376-3. Do-it-yourself maintenance
6
Maintenance and care
ing light starts slowly blinking 3
times.
Then a message will be displayed on the
multi-information display.
When registration is being performed, the
tire pressure warning light will blink for
approximately 1 minute then illuminate and
“--” will be displayed for the inflation pres-
sure of each tire on the multi-information
display.
6Drive at approximately 25 mph
(40 km/h) or more for approxi-
mately 10 to 30 minutes.
Registration is complete when the tire
pressure warning light turns off and the
inflation pressure of each tire is displayed
on the multi-information display. Registra-
tion may take longer than normal to com-
plete if the vehicle speed cannot be
maintained at approximately 25 mph (40
km/h) or more. If registration cannot be
completed after driving for 1 hour or more,
perform the registration procedure again
from the beginning.
7Initialize the tire pressure warning
system. ( P.335)
QWhen registering ID codes
OID code registration is performed while
driving at a vehicle speed of approxi-
mately 25 mph (40 km/h) or more.
OBefore performing ID code registration,
make sure that no wheels with tire pres-
sure warning valve and transmitters
installed are near the vehicle.
OMake sure to initialize the tire pressure warning system after
registering the ID
codes. If the system is initialized before
registering the ID codes, the initialized
values will be invalid.
OID codes can be registered by yourself,
but depending on the driving conditions
and driving environment, registration
may take some time to complete.
QCanceling ID code registration
OTo cancel ID code registration after it has
been started, turn the power switch off
before driving the vehicle.
If the vehicle is driven after ID code regis-
tration is started, to cancel registration,
perform the ID code registration start
procedure again and turn the power
switch off before driving.
OIf ID code registration has been can-
celed, the tire pressure warning light will
blink for approximately 1 minute when the
power switch is turned to ON mode and
then illuminate. The tire pressure warning
system will be operational when the tire
pressure warning light turns off.
OIf the warning light does not turn off even
after several minutes have elapsed, ID
code registration may not have been
canceled correctly. To cancel registra-
tion, perform the ID code registration
start procedure again and then turn the
power switch off before driving.
QIf ID codes are not registered properly
OIn the following situations, ID code regis-
tration may take longer than usual to be
completed or may not be possible. Nor-
mally, registration completes within
approximately 30 minutes.
• Vehicle is not parked for approximately 20 minutes or more before driving
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven ne ar other vehicles and
system cannot recognize tire pressure
warning valve and tran smitters of your
vehicle over those of other vehicles
• Wheel with tire pressure warning valve
and transmitter installed is inside or near
the vehicle
OIf registration does not complete after
driving for 1 hour or more, perform the ID

3386-3. Do-it-yourself maintenance
code registration procedure again from
the beginning.
OIf the vehicle is reversed during registra-
tion, the data up to that point is reset, so
perform the registration procedure again
from the beginning.
OIn the following situations, ID code regis-
tration will not be started or was not com-
pleted properly and the system will not
operate properly. Perform the ID code
registration procedure again.
• If, when attempting to start ID code regis- tration, the tire pressure warning light
does not blink slowly 3 times.
• If, when the vehicle has been driven for about 20 minutes after performing ID
code registration, the tire pressure warn-
ing light blinks for approximately 1 minute
and then illuminates.
OIf ID code registration cannot be com-
pleted after performing the above proce-
dure, contact your Lexus dealer.
The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(  P.407)
Tire valve
Tire inflation pressure
Checking the specifi ed tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A

3396-3. Do-it-yourself maintenance
6
Maintenance and care
Tire pressure gauge
1 Remove the tire valve cap.
2 Press the tip of the tire pressure
gauge onto the tire valve.
3 Read the pressure using the gauge
gradations.
4 If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.
5 After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.
6 Put the tire valve cap back on.
QTire inflation pressure check interval
You should check tire inflation pressure
every two weeks, or at least once a month.
Do not forget to check the spare.
QEffects of incorrect tire inflation pres-
sure
Driving with incorrect tire inflation pressure
may result in the following:
OReduced fuel economy
OReduced driving comfort and poor han-
dling
OReduced tire life due to wear
OReduced safety
ODamage to the drivetrain
If a tire needs frequent inflating, have it
checked by your Lexus dealer.
QInstructions for checking tire inflation
pressure
When checking tire inflation pressure,
observe the following:
OCheck only when the tires are cold.
If your vehicle has been parked for at
least 3 hours or has not been driven for more than 1 mile or 1.5 km, you will get an
accurate cold tire inflation pressure read-
ing.
OAlways use a tire pressure gauge.
It is difficult to judge if a tire is properly
inflated based only on its appearance.
OIt is normal for the tire inflation pressure
to be higher after driving as heat is gener-
ated in the tire. Do not reduce tire infla-
tion pressure after driving.
ONever exceed the vehicle capacity
weight.
Passengers and luggage weight should
be placed so that the vehicle is balanced.
B
WARNING
QProper inflation is critical to save tire
performance
Keep your tires properly inflated.
If the tires are not properly inflated, the
following conditions may occur which
could lead to an accident resulting in
death or serious injury:
OExcessive wear
OUneven wear
OPoor handling
OPossibility of blowouts resulting from
overheated tires
OAir leaking from between tire and
wheel
OWheel deformation and/or tire dam-
age
OGreater possibility of tire damage
while driving (due to road hazards,
expansion joints, sharp edges in the
road, etc.)