2021 Lexus LC500 flat tire

4008-1. Specifications
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performa nce of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road
characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for three hours or
more, or has not been driven more than 1 mile or 1.5 km under that
condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a tire may be inflated,
shown on the sidewall of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a manufacturer

4028-1. Specifications
Vehicle maximum
load on the tireThe load on an individual tire that is determined by distributing to
each axle its share of the maximum loaded vehicle weight, and divid-
ing by two
Vehicle normal load
on the tire
The load on an individual tire that is determined by distributing to
each axle its share of curb weight, accessory weight, and normal
occupant weight (distributed in accordance with Table 1
* below), and
dividing by two
Weather sideThe surface area of the rim not covered by the inflated tire
BeadThe part of the tire that is made of steel wires, wrapped or reinforced
by ply cords and that is shaped to fit the rim
Bead separationA breakdown of the bond between components in the bead
Bias ply tire
A pneumatic tire in which the ply cords that extend to the beads are
laid at alternate angles substantia lly less than 90 degrees to the cen-
terline of the tread
CarcassThe tire structure, except tread and sidewall rubber which, when
inflated, bears the load
ChunkingThe breaking away of pieces of the tread or sidewall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber compounds
CrackingAny parting within the tread, sidewall, or innerliner of the tire extend-
ing to cord material
CT
A pneumatic tire with an inverted fl ange tire and rim system in which
the rim is designed with rim flanges pointed radially inward and the
tire is designed to fit on the unde rside of the rim in a manner that
encloses the rim flanges inside the air cavity of the tire
Extra load tireA tire designed to operate at high er loads and at higher inflation
pressures than the corre sponding standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the inside surfac e of a tubeless tire that contains
the inflating medium within the tire
Innerliner separa-
tionThe parting of the innerliner from cord material in the carcass
Tire related termMeaning

4038-1. Specifications
8
Vehicle specifications
Intended outboard
sidewall
(a) The sidewall that contains a whitewall, bears white lettering, or
bears manufacturer, brand, and/or model name molding that is
higher or deeper than the same molding on the other sidewall of the
tire, or
(b) The outward facing sidewall of an asymmetrical tire that has a
particular side that must always face outward when mounted on a
vehicle
Light truck (LT) tireA tire designated by its manufactur er as primarily intended for use
on lightweight trucks or mu ltipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a given inflation
pressure
Maximum load rat-
ingThe load rating for a tire at the maximum permissible inflation pres-
sure for that tire
Maximum permissi-
ble inflation pres-
sure
The maximum cold inflation pressure to which a tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension requirements
Open spliceAny parting at any junction of tread, sidewall, or innerliner that
extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the sidewalls of an
inflated tire, including elevations du e to labeling, decorations, or pro-
tective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipurpose passenger
vehicles, and trucks, that have a gr oss vehicle weight rating (GVWR)
of 10,000 lb. or less.
PlyA layer of rubber-c oated parallel cords
Ply separationA parting of rubber compound between adjacent plies
Pneumatic tire
A mechanical device made of rubber, chemicals, fabric and steel or
other materials, that, when mounted on an automotive wheel, pro-
vides the traction and contains the gas or fluid that sustains the load
Radial ply tireA pneumatic tire in which the ply cords that extend to the beads are
laid at substantially 90 degree s to the centerline of the tread
Reinforced tireA tire designed to operate at high er loads and at higher inflation
pressures than the corre sponding standard tire
Tire related termMeaning

4048-1. Specifications
*:Table 1  Occupant loading and distribution for vehicle normal load for various desig-
nated seating capacities
Section width
The linear distance between the exteriors of the sidewalls of an
inflated tire, excluding elevations due to labeling, decoration, or pro-
tective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber compound from the cord material in the
sidewall
Snow tire
A tire that attains a traction index equal to or greater than 110, com-
pared to the ASTM E-1136 Standard Reference Test Tire, when using
the snow traction test as described in ASTM F-1805-00, Standard
Test Method for Single Wheel Driving Traction in a Straight Line on
Snow-and Ice-Covered Surfaces, and which is marked with an
Alpine Symbol ( ) on at least one sidewall
Test rimThe rim on which a tire is fitted fo r testing, and may be any rim listed
as appropriate for use with that tire
TreadThat portion of a tire that comes into contact with the road
Tread ribA tread section running circumferentially around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indica-
tors (TWI)The projections within th e principal grooves designed to give a visual
indication of the degree s of wear of the tread
Wheel-holding fix-
tureThe fixture used to hold the wheel and tire assembly securely during
testing
Designated seating capacity,
Number of occupantsVehicle normal load, Num- ber of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 1552 in front, 1 in second seat, 1 in
third seat, 1 in fourth seat
16 through 2072 in front, 2 in second seat, 2 in third seat, 1 in fourth seat
Tire related termMeaning

4178-3. Items to initialize
8
Vehicle specifications
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.318
Power windows• When functioning abnormallyP.138
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 “NAV- IGATION SYSTEM
OWNER’S
MANUAL”.
Message indicating maintenance is
required• After the maintenance is per- formedP.295
Oil maintenance (LC500h)• After the maintenance is per-formedP.307

433What to do if... (Troubleshooting)
It is locked automatically to prevent
theft of the vehicle. ( P.153, 157)
 Is the window lock switch pressed?
The power window at the passenger’s seat
cannot be operated if the window lock
switch is pressed. ( P.139)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is
not running operating>) for a period of time.
( P.155, 160)
 The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.351)
 The parking brake indicator is on
Is the parking brake released? ( P.176)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.347, 356) 
Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.72)
To stop the alarm, turn the engine
switch to IGNITION
ON mode , or start the
engine .
 Is the electronic key left inside the
vehicle?
Check the message on the multi-informa-
tion display. ( P.356)
 When a warning light turns on or a
warning message is displayed, refer
to P.347, 356.
 Slow down the vehicle, drive with
extra caution, and take your vehicle
to the nearest Lexus dealer or
authorized tire dealer as soon as
possible to have the tire replaced.
( P.362)
The steering wheel cannot be
turned after the engine system> is stopped
The windows do not open or
close by operating the power
window switches
The engine switch switch> is turned off automati-
cally
A warning buzzer sounds during
drivingAn alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire

Alphabetical index437
Do-it-yourself maintenance .................... 296
Door courtesy lights ..................................... 271
Door lockDoors.................................................................. 110
Smart access system with push-button start ....................................................................117
Wireless remote control......................... 108
Door pockets ................................................ 273
Doors ................................................................... 110 Automatic door lock ing and unlocking
system ............................................................. 113
Door glasses ................................................. 138
Door lock.......................................................... 110
Open door warning buzz er .............111, 113
Outside rear view mirrors ......................135
Drive info 1/Drive info 2 .............................. 88
Drive information ........................................... 88
Driver’s seat position memory ................. 127 Driving position memory......................... 127
Memory recall function ............................ 129
Power easy access system ..................... 127
Drive-start control ........................................143
Driving................................................................ 142 Break-in tips ................................................... 143
Correct driving posture .............................23
Driving mode select switch .................. 224
Hybrid vehicle driving tips .................... 248
Procedures ..................................................... 142
Winter drive tips.........................................250
Driving mode select switch ..................... 224
Driving position memory Power easy access system ..................... 127
DRS (Dynamic Rear Steering) .............. 243
Dynamic radar cruise control with full- speed range.................................................. 214Warning message......................................222
Dynamic Rear Steering (DRS) .............. 243
E
ECB (Electronically Controlled Brake Sys- tem) ................................................................ 243
Eco drive mode ............................................ 224 Eco Driving Indicator.................................... 80
Eco Driving Indicator Light ........................ 80
EDR (Event data recorder) ........................... 8
Elapsed time ..................................................... 88
Electric motor (traction motor) ................ 62
Electric Power Steering (EPS)
Function .......................................................... 243
Warning light .............................................. 348
Electronically Controlled Brake System (ECB) ............................................................ 243
Electronic key ................................................ 106 Battery-saving function.............................. 119
If the electronic key does not operate properly ....................................................... 367
Replacing the battery .............................. 330
Emergency, in case of If a warning buzzer sounds................... 347
If a warning light turns on....................... 347
If a warning message is displayed .... 356
If the 12-volt battery is discharged ... 369
If the electronic key does not operate properly ....................................................... 367
If the engine will not start........................363
If the fuel filler do or cannot be opened
......................................................................... 366
If the hybrid system will not start ........364
If the vehicle is trapped in rising water ..........................................................................339
If you have a flat tire ..................................362
If you lose your keys ................................ 366
If you think something is wrong..........345
If your vehicle becomes stuck .............382
If your vehicle has to be stopped in an emergency ................................................ 338
If your vehicle needs to be towed .......341
If your vehicle overheats ............376, 379
Emergency flashers .................................... 338
Energy monitor ............................................... 98
Engine ACCESSORY mode.................... 155, 159
Compartment............................................. 304
Engine switch ................................................ 152

438Alphabetical index
Fuel pump shut off system .................... 346
Hood................................................................ 302
How to start the engine............................152
How to start the hybrid system ........... 156
Identification number ............................... 387
If the engine will not start ....................... 363
If the hybrid system will not start ........ 364
If your vehicle has to be stopped in an
emergency ................................................338
Ignition switch (engine switch) .............152
Ignition switch (power switch) ............. 156
Overheating..................................... 376, 379
Power switch ................................................ 156
Engine coolant..............................................308 Capacity .........................................................390
Checking ...................................................... 308
Preparing and checking before winter.........................................................................250
Engine coolant temperature gauge ....... 82
Engine immobilizer system ........................ 70
Engine oil ........................................................ 305 Capacity ........................................................ 388
Checking ...................................................... 305
Preparing and checking before winter.........................................................................250
Warning light ............................................... 347
Warning message.....................................359
Engine oil maintenance data .................. 307
Engine oil temperature gauge .................. 82
Engine switch (power switch) ........152, 156 Auto power off function ................155, 160
Changing the engine switch (power switch) modes.................................155, 159
If your vehicle has to be stopped in an
emergency ................................................338
Starting the engine (hybrid system)
................................................................ 152, 156
EPS (Electric Power Steering) .............. 243 Function .......................................................... 243
Warning light ...............................................348
EV drive mode............................................... 160
Event data recorder (EDR) ........................... 8 EV indicator ...................................................... 63
F
First-aid kit storage belt ............................ 275
Flat tire ............................................................. 362
Tire pressure warning system .............. 315
Floor mats ...........................................................22
Fluid Automatic transmission ........................... 391
Brake ................................................................392
Hybrid transmission..................................392
Washer ............................................................ 310
Footwell light ................................................... 271
Front passenger occupant classification system .............................................................. 39
Front seats ........................................................125 Adjustment ..................................................... 125
Cleaning ........................................................ 289
Correct driving posture ............................ 23
Driving position memory ......................... 127
Head restraints............................................... 131
Jam protection function ............................ 127
Memory recall function.............................129
Power easy access system ..................... 127
Seat heaters ................................................. 268
Seat position memory ............................... 127
Seat ventilators ........................................... 268
Front side marker light ................................. 181 Light switch ...................................................... 181
Replacing light bulbs ................................336
Front turn signal lights ................................. 175 Replacing light bulbs ................................336
Turn signal lever ...........................................175
Fuel ....................................................................... 191 Capacity ........................................................ 388
Fuel gauge ........................................................ 82
Fuel pump shut off system.....................346
Information ................................................... 395
Refueling............................................................ 191
Type ................................................................. 388
Warning light ................................................ 351
Fuel consumption