2018 Lexus LC500 tire size

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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
display. (P.92)
The illustration used is intended as an
example, and may differ from the image
that is actually displayed on the multi-infor-
mation display.
■Routine 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.
■Situations in which the tire pressure warning system may not operate prop-
erly
●In 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 wheels 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.
●Performance 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.
●When the vehicle is parked, the time taken for the warning to start or go off
could be extended.
●When tire inflation pressure declines rap-
idly for example when a tire has burst, the warning may not function.
■Warning performance of the tire pres-sure warning system
The warning of the tire pressure warning system will change in accordance with the
conditions under which it was initialized. 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 initialized.

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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
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

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8-1. Specifications
Vehicle specifications
20-inch tires (type A)
20-inch tires (type B)
21-inch tires
Tires and wheels
Tire sizeFront tires: 245/45RF20 99Y
Rear tires: 275/40RF20 102Y
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Vehicle speedFront tire and rear tire
kPa (kgf/cm2 or bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)
220 km/h (137 mph) or less230 (2.3, 33)
Wheel sizeFront wheels: 20  8 1/2J
Rear wheels: 20  9 1/2J
Wheel nut torque140 N•m (14.3 kgf•m, 103.3 ft•lbf)
Tire size245/45RF20 99Y
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Vehicle speedFront tire and rear tire
kPa (kgf/cm2 or bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)
220 km/h (137 mph) or less230 (2.3, 33)
Wheel size20  8 1/2J
Wheel nut torque140 N•m (14.3 kgf•m, 103.3 ft•lbf)
Tire sizeFront tires: 245/40RF21 96Y
Rear tires: 275/35RF21 99Y
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Vehicle speedFront tire and rear tire
kPa (kgf/cm2 or bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)
220 km/h (137 mph) or less230 (2.3, 33)

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8-3. Items to initialize
8-3.Items to initialize
Items to initialize
The following items must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle:
List of the items to initialize
ItemWhen to initializeReference
Tire pressure warning system
• When rotating the tires.
• When the tire inflation pressure is
changed by changing tire size.
(When there are multiple speci-
fied pressures)
• After registering the ID codes.
• When the tire inflation pressure is
changed such as when changing
traveling speed.
P.335
Power windows• When functioning abnormallyP.150
Lexus parking assist monitor
• The steering wheel has been
moved while the 12-volt battery
was being reinstalled.
• 12-volt battery power is low.
Refer to the
“NAVIGA-
TION SYSTEM
OWNER’S
MANUAL”.
Oil maintenance (LC500h)• After the maintenance is per-
formedP.321

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Alphabetical index
Double locking system .............................. 75
Engine immobilizer system...................... 70
Intrusion sensor and tilt sensor .............. 78
Tire inflation pressure................................ 345
Maintenance data........................................419
Tire inflation pressure display function
......................................................................... 329
Warning light ............................................... 374
Tire pressure warning system .................329
Function .......................................................... 329
Initializing........................................................335
Installing tire pressure warning valves
and transmitters.......................................335
Registering ID codes ............................... 337
Warning light ............................................... 374
Tires ................................................................... 327
Chains ............................................................... 271
Checking ....................................................... 327
If you have a flat tire ..................................384
Inflation pressure........................................345
Replacing .......................................................339
Rotating tires ................................................328
Run-flat tires......................................329, 384
Size......................................................................419
Snow tires ......................................................269
Tire inflation pressure display function
......................................................................... 329
Tire pressure warning system ............. 329
Warning light ............................................... 374
Tools ................................................................. 339
Top strap ............................................................ 60
Towing
Emergency towing.................................... 362
Towing eyelet ..............................................365
Trailer towing .................................................162
Traction battery (hybrid battery) ..............65
Hybrid battery (traction battery) air vents
............................................................................68
Location.............................................................65
Specification ................................................... 412
Warning message........................................68
Traction Control (TRC).............................262
Traction motor (electric motor)................62
Trailer towing .................................................. 162
Transmission
Automatic transmission ............................173
Driving mode select switch .................. 242
Hybrid transmission................................... 179
M mode .................................................178, 184
Paddle shift switches .. 177, 178, 183, 184
Snow mode.......................................... 177, 183
TRC (Traction Control).............................262
Trip meters........................................................ 88
Trunk ....................................................................119
Smart entry & start system ..................... 120
Trunk features ............................................. 295
Trunk grip.......................................................... 121
Trunk light ......................................................... 121
Trunk opener main switch.......................122
Trunk opener switch.................................. 120
Wireless remote control ........................... 121
Trunk light...........................................................121
Turn signal lights ............................................186
Replacing light bulbs ............................... 355
Turn signal lever .......................................... 186
U
Units......................................................................95
V
Vanity lights .................................................... 297
Wattage ..........................................................420
Vanity mirrors................................................ 297
Variable Gear Ratio Steering (VGRS)262
VDIM (Vehicle Dynamics Integrated Man-
agement) ......................................................263
Vehicle Dynamics Integrated Manage-
ment (VDIM) ..............................................263
Vehicle identification number ................. 410
Vehicle Stability Control (VSC) ............262
Ventilators (seat ventilators) .................. 288

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Alphabetical index
VGRS (Variable Gear Ratio Steering)262
VSC (Vehicle Stability Control) ............262
W
Warning buzzers
Approach warning.................................... 235
Brake system .............................................. 368
Downshifting ................. 178, 178, 184, 185
Lexus parking assist ................................. 243
LKA (Lane-Keeping Assist) .................. 218
Open door.............................................. 116, 118
Open hood ...................................................... 118
Open trunk ...................................................... 118
Open window ................................................ 151
Pre-collision braking ................................. 210
Seat belt reminder ..................................... 373
Warning label ...................................................65
Warning lights .............................................. 368
ABS...................................................................369
Brake hold operated indicator ........... 372
Brake Override System ......................... 372
Brake pad wear .......................................... 373
Brake system ...................................368, 373
Charging system....................................... 368
Electric power steering ..........................370
High coolant temperature .................... 375
LKA (Lane-Keeping Assist) ................... 371
Low engine oil pressure........................ 368
Low fuel level ............................................... 373
Malfunction indicator lamp ...................369
Master warning light ................................ 374
Parking brake indicator .......................... 372
Pre-collision system .................................370
Seat belt reminder light........................... 373
Slip indicator................................................... 371
SRS....................................................................369
Tire pressure ................................................ 374
Warning messages......................................378
Warning reflector storage belt ..............295
Washer .............................................................. 196
Checking........................................................ 324
Headlight cleaners ..................................... 196
Preparing and checking before winter
..........................................................................269
Switch................................................................ 196
Washing and waxing ................................. 304
Weight ............................................................... 410
Wheels..............................................................346
Replacing wheels ...................................... 339
Size ..................................................................... 419
Window lock switch..................................... 152
Windows...........................................................150
Power windows ........................................... 150
Rear window defogger............................ 281
Washer............................................................. 196
Windshield wiper de-icer ........................ 284
Windshield wipers ........................................ 196
Position............................................................. 198
Rain-sensing windshield wipers .......... 196
Winter driving tips .......................................269
Wireless remote control ..............................113
Battery-Saving Function...........................124
Locking/Unlocking...................................... 113
Replacing the battery...............................349
For information regarding the
equipment listed below, refer to
the “NAVIGATION SYSTEM
OWNER’S MANUAL”.
· Audio/video system
· Navigation system
· Lexus parking assist monitor
Toyota Motor Europe NV/SA, Ave-
nue du Bourget 60 - 1140 Brus-
sels, Belgium
www.toyota-europe.com