tires lexus LC500 2018 Owner's Guide

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6-3. Do-it-yourself maintenance
Maintenance and care
Check that the level is upper than the
center between the bottom of the bat-
tery lid and “LOWER LEVEL” line.
Bottom of the battery lid
“LOWER LEVEL” line
Center of and
If the fluid level is below , replace the
12-volt battery.
Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as excessive
wear on one side of the tread.
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-
tors are showing on a tire.
Keep away from children
12-volt battery acid
Note operating instructions
Explosive gas
Checking the 12-volt battery
fluid
A
B
CAB
C
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C

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6-3. Do-it-yourself maintenance
■When to replace your vehicle’s tires
Tires 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 any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Tire 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.
■Low profile tires (21-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.
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
Rotate the tires in the order shown.
WARNING
■When 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 resulting in death or serious injury.
●Do not mix tires of different makes,
models or tread patterns. Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed
tires (radial, bias-belted or bias-ply tires).
●Do not mix summer, all season and snow tires.
●Do 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
■Driving on rough roads
Take particular care 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.
■Low profile tires (21-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:
●Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.
●Avoid potholes, uneven pavement, curbs and other road hazards. Failure to do so may lead to severe tire and
wheel damage.
■If 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

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6-3. Do-it-yourself maintenance
Maintenance and care
Vehicles with front and rear tires of
the same size
Vehicles with front and rear tires of
differing sizes
To equalize tire wear and help extend tire
life, Lexus recommends that tire rotation is
carried out approximately every 10000
km (6000 miles).
Do not fail to initialize the tire pressure
warning system after tire rotation.
■When rotating the tires
Make sure that the engine switch is off. If the tires are rotated while
the engine switch is in IGNITION ON mode , the tire position information will not be updated.
If this accidentally occurs, either turn the engine switch to off and then to IGNITION ON mode ,
or initialize the tire pr essure warning system after checking that the tire pressure is prop-erly adjusted.
When run-flat tires are installed, the
vehicle can be driven for a maximum of
160 km (100 miles) at a speed below
80 km/h (50 mph) after any tire goes
flat. (However, the vehicle speed may
not increase to near 80 km/h [50
mph] depending on weather or driving
conditions.)
A run-flat tire has a mark on
the side wall.
Make sure to replace the flat tire before the
vehicle has been driven for near 160 km
(100 miles). Also, do not use a repaired
tire.
■Run-flat tires
●The run-flat tires are for only this vehicle. Do not use the tires on other vehicles.
●Do not mix run-flat tires and normal tires.
●If non-genuine Lexus wheels are used, it
may be impossible to sufficiently demon- strate the performanc e of run-flat tires.
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.374)
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
Run-flat tires
Tire pressure warning system

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6-3. Do-it-yourself maintenance
Maintenance and care
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.337)
■When 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 10 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system
malfunction.
■The 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.337)
When the tire pressure warning system
is initialized, the current tire inflation
pressure is set as the benchmark pres-
sure.
■How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
turn the engine switch switch> off.
Initialization cannot be performed while the vehicle is moving.
2 Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure level.
Make sure to adjust the tire pressure to the specified cold tire infl ation pressure level. The tire pressure warning system will oper-
ate based on this pressure level.
3 Turn the engine switch switch> to IGNITION ON mode
.
Installing tire pressure warning
valves and tr ansmitters
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, trans-
mitters and tire valve caps
●When removing or fitting the wheels,
tires or the tire pressure warning valves and transmitters, contact any
authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer as the tire pressure warning
valves and transmitters may be dam- aged if not handled correctly.
●Make 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.
●When replacing tire valve caps, do not
use tire valve caps other than those specified. The cap may become stuck.
Initializing the tire pressure
warning system

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6-3. Do-it-yourself maintenance
4Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS
SET”, and then press “OK”.
7 Press or of the meter con-
trol switches and select “Set tire
pressure”, and 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 the vehicle at approximately
40 km/h (25mph) or more for
approximately 10 to 30 minutes.
When initialization is complete, the infla- tion pressure of each tire will be displayed on the multi-information display.
Depending on the vehicle and driving con- ditions, initialization may take up to
approximately 1 hour to complete.
■The initialization operation
●Make sure to carry out initialization after
adjusting the tire inflation pressure. Also, make sure the tires are cold before carrying out initialization or tire inflation
pressure adjustment.
●If you have accidentally turned the engine
switch off during initial- ization, it is not ne cessary to manually restart the initializatio n again, as initializa-
tion will restart automatically the next time the engine switch is turned to IGNITION ON mode mode>.
●If 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.
●While 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.
■When initialization of the tire pressure warning system has failed
Initialization may take longer to complete if
the vehicle is driven on an unpaved road. When performing initialization, drive on a paved road if possible. Depending on the
driving environment an d condition of the tires, initialization will be completed in approximately 10 to 30 minutes. If initializa-
tion is not complete after driving approxi- mately 10 to 30 minutes, continue driving for a while. If the inflation of each tire is not
displayed after driving for approximately 1 hour, perform the following procedure.
●Park the vehicle in a safe place for approximately 20 minutes. Then drive straight (with occasional left and right
turns) at approximately 40 km/h (25 mph) or more for approximately 10 to 30 minutes.
However, in the following situations, the tire
inflation pressure will not be recorded and
the system will not operate properly. Per-
form initialization again.
●When performing init ialization, the tire

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6-3. Do-it-yourself maintenance
Maintenance and care
pressure warning light does not blink 3 times. (Initialization will not occur while driving)
●After performing init ialization, the tire pressure warning light blinks for 1 minute
then stays on after driving for about 20 minutes.
If the inflation pressure of each tire is still not
displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
■When registering ID codes
●Initialize the tire pressure warning system after ID code registra tion. Initialization is
disabled if the system was initialized before registration.
●After ID code registration, the tires are hot by driving. Initia lize the tire pressure warning system after the tires become
cold.
The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
When registering the ID codes, per-
form the following procedure.
1 Turn the engine switch switch> to IGNITION ON mode
.
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
SET”, and then press “OK”.
5 Press or of the meter con-
trol switches and select “Change
wheel set”, and then press and hold
“OK” until the tire pressure warning
light starts blinking.
The change wheel set mode is activated and registration is started.
A message is displayed on the multi-infor- mation display, and “--” is displayed for inflation pressure of e ach tire. Then, the tire
pressure warning light blinks rapidly for approximately 1 minute and stays on.
6 Drive the vehicle at 40 km/h
(25mph) or more for approxi-
mately 10 to 30 minutes.
When registration is completed, the tire pressure warning light will go off and the inflation pressure of each tire will be dis-
played on the multi-information display.
WARNING
■When 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 pres- sure is low, or it may come on when the tire inflation pressure is actually normal.
Registering ID codes

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6-3. Do-it-yourself maintenance
1Pull the strap up and remove the
rear luggage mat.
2 Take out the jack.
Remove the jack handle, and then take out the jack.
1 Chock the tires.
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause the vehicle to suddenly fall off the jack, leading to death or serious injury.
●Do not use the tire jack for any pur-
pose other than replacing tires.
●Only use the tire jack that comes with this vehicle for replacing a tire. Do not use it on other vehicles, and do
not use other tire jacks for replacing tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body under the vehicle while it is supported by the
jack.
●Do not start the engine or drive the vehicle while the vehicle is supported by the jack.
●Do not raise the vehicle while some-
one is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to replace
the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●When lowering the vehicle, make sure that there is no-one near the vehicle. If
there are people nearby, warn them vocally before lowering.
Taking out the jack
Removing a tire

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6-3. Do-it-yourself maintenance
WARNING
■When installing the tire
Failure to follow these precautions could cause the wheel nuts to loosen and the tire to fall off, resulting in death or serious
injury.
●Never use oil or grease on the wheel bolts or wheel nuts.Oil and grease may cause the wheel
nuts to be excessively tightened, lead- ing to bolt or disc wheel damage. In addition, the oil or grease can cause
the wheel nuts to loosen and the wheel may fall off, causing a serious accident. Remove any oil or grease from the
wheel bolts or wheel nuts.
●Have the wheel nuts tightened with a torque wrench to 140 N•m (14.3 kgf•m, 103.3 ft•lbf) as soon as possible
after changing wheels.
●Do not attach a heavily damaged wheel ornament, as it may fly off the wheel while the vehicle is moving.
●When installing a ti re, only use wheel
nuts that have been specifically designed for that wheel.
●If there are any cracks or deformations in the bolt screws, nut threads or bolt
holes of the wheel, have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer.
■After using the tools and jack
Before driving, make sure all the tools and jack are stored securely in place. Failure to do so may cause injury in case
of a collision or sudden braking.
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, trans-mitters and tire valve caps
 P.335

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6-3. Do-it-yourself maintenance
Maintenance and care
■Effects of incorrect tire inflation pres- sure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor han-dling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drivetrain
If a tire needs frequent inflating, have it checked by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check 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 1.5 km or 1 mile, you will get an accurate cold tire inflation pressure read-ing.
●Always use a tire pressure gauge.It is difficult to judge if a tire is properly
inflated based only on its appearance.
●It is normal for the tire inflation pressure
to be higher after driving as heat is gen- erated in the tire. Do not reduce tire infla-tion pressure after driving.
●Passengers and luggage weight should be placed so that the vehicle is balanced.
Tire inflation pressure
Make sure to maintain proper tire
inflation pressure. Tire inflation
pressure should be checked at least
once per month. However, Lexus
recommends that tire inflation
pressure be checked once every
two weeks.
WARNING
■Proper 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:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resulting from overheated tires
●Air leaking from between tire and
wheel
●Wheel deformation and/or tire dam- age
●Greater possibility of tire damage while driving (due to road hazards,
expansion joints, sh arp edges in the road, etc.)
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on. If a valve cap is not installed, dirt or mois-
ture may get into the valve and cause an air leak, resulting in decreased tire infla-tion pressure.

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6-3. Do-it-yourself maintenance
When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset*.
Replacement wheels are available at
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.
*: Conventionally referred to as offset.
Lexus does not recommend using the
following:
 Wheels of different sizes or types
 Used wheels
 Bent wheels that have been straight-
ened
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warning system to provide advance warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pres- sure warning valves and transmitters must be installed. ( P.335)Use only Lexus wheel nuts and
wrenches designed for use with
your aluminum wheels.
 When rotating, repairing or chang-
Wheels
If a wheel is bent, cracked or heavily
corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.
Wheel selection
WARNING
■When replacing wheels
●Do not use wheels that are a different
size from those recommended in the Owner’s Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking
wheel which is designed for a tubeless tire. Doing so may result in an acci-dent, causing death or serious injury.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an acci-dent.
NOTICE
■Replacing tire pressure warning
valves and transmitters
●Because tire repair or replacement
may affect the tire pressure warning valves and transmitters, make sure to have tires serviced by any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer or other qualified service shop. In addi-
tion, make sure to purchase your tire pressure warning valves and transmit-ters at any authorized Lexus retailer or
Lexus authorized repairer, or any reli- able repairer.
●Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and trans- mitters may not work properly with non-genuine wheels.
Aluminum wheel precautions