wheel size LEXUS ES300h 2022 Owners Manual

1854-5. Using the driving support systems
4
Driving
QEnabling/disabling the pre-colli-
sion system
The pre-collision system can be
enabled/disabled on ( P.85) of
the multi-information display.
The system is automatically enabled each
time the power switch is turned to ON
mode.
If the system is disabled, the PCS warn-
ing light will turn on and a message will
be displayed on the multi-information
display.
QChanging the pre-collision warn-
ing timing
The pre-collision warning timing can
be changed on ( P.85) of the
multi-information display.
The warning timing setting is retained
when the power switch is turned off. How-
ever, if the pre-collision system is disabled
and re-enabled, the operation timing will
return to the default setting (middle).
WARNING
QWhen to disable the pre-collision sys-
tem
In the following situations, disable the
system, as it may not operate properly,
possibly leading to an accident resulting
in death or serious injury:
OWhen the vehicle is being towed
OWhen your vehicle is towing another
vehicle
OWhen transporting the vehicle via
truck, boat, train or similar means of
transportation
OWhen the vehicle is raised on a lift with
the hybrid system on and the tires are
allowed to rotate freely
OWhen inspecting the vehicle using a
drum tester such as a chassis
dynamometer or speedometer tester,
or when using an on vehicle wheel bal-
ancer
OWhen a strong impact is applied to the
front bumper or front grille, due to an
accident or other reasons
OIf the vehicle cannot be driven in a sta-
ble manner, such as when the vehicle
has been in an accident or is malfunc-
tioning
OWhen the vehicle is driven in a sporty
manner or off-road
OWhen the tires are not properly
inflated
OWhen the tires are very worn
OWhen tires of a size other than speci-
fied are installed
OWhen tire chains are installed
OWhen a compact spare tire or an
emergency tire puncture repair kit is
used
OIf equipment (snow plow, etc.) that
may obstruct the radar sensor or front
camera is temporarily installed to the
vehicle
Changing settings of the pre-
collision system

1914-5. Using the driving support systems
4
Driving
bicycle ridden by more than one person,
or a uniquely shaped bicycle (bicycle with
a child seat, tandem bicycle, etc.)
• If a pedestrian/or the riding height of a bicyclist ahead is shorter than approxi-
mately 3.2 ft. (1 m) or taller than approxi-
mately 6.5 ft. (2 m)
• If a pedestrian/bicyclist is wearing over- sized clothing (a rain coat, long skirt,
etc.), making their silhouette obscure
• If a pedestrian is bending forward or squatting or bicyclist is bending forward
• If a pedestrian/bicyclist is moving fast
• If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in incl ement weather such
as heavy rain, fog, snow or a sandstorm
• When driving through steam or smoke
• When the surrounding area is dim, such as at dawn or dusk, or while at night or in
a tunnel, making a detectable object
appear to be nearly the same color as its
surroundings
• When driving in a place where the sur-
rounding brightness changes suddenly,
such as at the entrance or exit of a tunnel
• After the hybrid system has started the
vehicle has not been driven for a certain
amount of time
• While making a left/right turn and for a
few seconds after making a left/right turn
• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the front of the vehicle is raised or low- ered
• If the wheels are misaligned
• If a wiper blade is blocking the front cam- era
• The vehicle is being driven at extremely
high speeds
• When driving on a hill
• If the radar sensor or front camera is mis-
aligned • When driving in a traffic lane separated
by more than one lane where oncoming
vehicles are driving while making a
right/left turn
• When largely out of place with the oppo- site facing targeted oncoming vehicle
during a right/left turn
• While making a right/left turn, when a pedestrian approaches from behind or
side of your vehicle
OIn addition to the above, in some situa-
tions, such as the following, the emer-
gency steering assist may not operate.
• When the white (yellow) lane lines are difficult to see, such as when they are
faint, diverging/merging, or a shadow is
cast upon them
• When the lane is wider or narrower than normal
• When there is a light and dark pattern on the road surface, such as due to road
repairs
• When the target is too close
• When there is insufficient safe or unob- structed space for the vehicle to be
steered into
• If oncoming vehicle is present
• If VSC function is operating
OIn some situations such as the following,
sufficient braking force or steering force
may not be obtained, preventing the sys-
tem from performing properly:
• If the braking functions cannot operate to their full extent, such as when the brake

1954-5. Using the driving support systems
4
Driving
QLane departure alert function
When the system determines that the
vehicle might depart from its lane or
course
*, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
When the system determines that the vehi-
cle might depart from its lane and that the
possibility of a collision with an overtaking
vehicle in the adjacent lane is high, the lane
departure alert will operate even if the turn
signals are operating.
*: Boundary between asphalt and the side of the road, such as grass, soil, or a curb
WARNING
OLight from the headlights of an oncom-
ing vehicle, the sun, etc. enters the
camera.
OThe vehicle is driven on a slope.
OThe vehicle is driven on a road which
tilts left or right, or a winding road.
OThe vehicle is driven on an unpaved or
rough road.
OThe traffic lane is excessively narrow
or wide.
OThe vehicle is extremely tilted due to
carrying heavy luggage or having
improper tire pressure.
OThe distance to the preceding vehicle
is extremely short.
OThe vehicle is moving up and down a
large amount due to road conditions
during driving (poor roads or road
seams).
OWhen driving in a tunnel or at night
with the headlights off or when a head-
light is dim due to its lens being dirty or
it being misaligned.
OThe vehicle is struck by a crosswind.
OThe vehicle is affected by wind from a
vehicle driven in a nearby lane.
OThe vehicle has just changed lanes or
crossed an intersection.
OTires which differ by structure, manu-
facturer, brand or tread pattern are
used.
OWhen tires of a size other than speci-
fied are installed.
OSnow tires, etc. are equipped.
OThe vehicle is being driven at
extremely high speeds.
Functions included in LTA sys-
tem

2574-5. Using the driving support systems
4
Driving
WARNING
QReplacing tires
Make sure that all tires are of the speci-
fied size, brand, tread pattern and total
load capacity. In addition, make sure that
the tires are inflated to the recom-
mended tire inflat ion pressure level.
The ABS, TRAC and VSC systems will
not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further
information when replacing tires or
wheels.
QHandling of tires and the suspension
Using tires with any kind of problem or
modifying the suspension will affect the
driving assist systems, and may cause a
system to malfunction.

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

2614-6. Driving tips
4
Driving
or move a wiper that is frozen. Pour
warm water over the frozen area to
melt the ice. Wipe away the water
immediately to prevent it from
freezing.
 To ensure proper operation of the
climate control system fan, remove
any snow that has accumulated on
the air inlet vents in front of the
windshield.
 Check for and remove any excess
ice or snow that may have accumu-
lated on the exterior lights, vehicle’s
roof, chassis, around the tires or on
the brakes.
 Remove any snow or mud from the
bottom of your shoes before getting
in the vehicle.
QTo protect the windshield wipers
 P.172
Accelerate the vehicle slowly, keep a
safe distance between you and the
vehicle ahead, and drive at a reduced
speed suitable to road conditions.
 Park the vehicle and move the shift
lever to P without setting the park-
ing brake. The parking brake may
freeze up, preventing it from being
released. If the vehicle is parked
without setting the parking brake,
make sure to block the wheels.
Failure to do so may be dangerous
because it may cause the vehicle to move unexpectedly, possibly lead-
ing to an accident.
When the parking brake is in automatic
mode, release the parking brake after shift-
ing the shift lever to P. (
P.159)
 If the vehicle is left parked with the
brakes damp in cold temperatures,
there is a possibility of the brakes
freezing.
 If the vehicle is parked without set-
ting the parking brake, confirm that
the shift lever cannot be moved out
of P
*.
*: The shift lever will be locked if it is
attempted to be shifted from P to any
other position without depressing the
brake pedal. If the shift lever can be
shifted from P, there may be a problem
with the shift lock system. Have the vehi-
cle inspected by your Lexus dealer
immediately.
Vehicles with 17-inch tires
Use the correct tire chain size when
mounting the tire chains.
Chain size is regulated for each tire
size.
When driving the vehicle
When parking the vehicle
WARNING
QWhen parking the vehicle
When parking the vehicle without apply-
ing the parking brake, make sure to
chock the wheels. If you do not chock the
wheels, the vehicle may move unexpect-
edly, possibly resulting in an accident.
Selecting tire chains

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