2020 Lexus LC500h inflation pressure

3848-1. Specifications
21-inch tires
Tire sizeFront tires: 245/40RF21 96Y
Rear tires: 275/35RF21 99Y
Tire inflation pressure
(Recommended cold tire inflation pressure)
Driving under normal conditions:
Front: 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Driving at high speeds (above 137 mph
[220 km/h]) (in countries where such
speeds are permitted by law):
Add 10 psi (70 kPa, 0.7 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed
the maximum cold tire inflation pressure
indicated on the tire sidewall.
Wheel sizeFront wheels: 21  8 1/2J
Rear wheels: 21  9 1/2J
Wheel nut torque103.3 ft•lbf (140 N•m, 14.3 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Vanity lights2Double end
bulbs

3878-1. Specifications
8
Vehicle specifications
Tire size (P.388)
Run-flat tire (RFT) or standard tire ( P.354)
This vehicle can be equipped with either run-flat tires (RFT) or standard tires. A
mark is molded on the sidewall of the run-flat tire.
DOT and Tire Identification Number (TIN) ( P.388)
Location of treadwear indicators ( P.305)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P.390)
Maximum cold tire inflation pressure ( P.390)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Tire information
Typical tire symbols
A
B
C
D
E
F
G
H
I
J

3908-1. 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

3928-1. 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

3938-1. 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

4078-3. 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.310
Power windows• When functioning abnormallyP.134
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.287
Oil maintenance (LC500h)• After the maintenance is per-formedP.299

Alphabetical index433
Stop lightsReplacing light bulbs................................ 328
Storage feature ............................................ 264
Stuck If the vehicle becomes stuck................ 374
Sunshade......................................................... 269
Sun visors ........................................................ 268
Switches “SOS” button .................................................. 54
Active rear wing switch .......................... 232
Automatic High Beam system..............178
Brake Hold switch ...................................... 173
BSM (Blind spot monitor) switch...... 224
Door lock switches ...................................... 110
Driving mode select switch .................... 216
Driving position memory switches ..... 124
Dynamic radar cruise control with full-speed range switch ............................... 207
Emergency flashers switch ...................330
Engine switch................................................ 148
EV drive mode switch ............................. 155
Garage door opener switches .......... 270
Heated steering wheel switch............. 259
HUD (Head-up display) switch.............. 91
Ignition switch.......................................148, 151
Instrument panel light control switch.. 83
Intuitive parking assist switch.................218
Light switches ................................................ 175
LKA (Lane-Keeping Assist) switch ....201
Meter control switches ..............................85
Outside rear view mirror switches ...... 131
Paddle shift switches .... 161, 162, 167, 168
Parking brake switch .................................170
PCS OFF switch ..........................................194
Power door lock switch ............................ 110
Power switch .................................................. 151
Power window switches ..........................134
Rear window and outside rear view mir- ror defoggers switch ............................ 252
Seat heater switches ................................ 259
Seat ventilator switches .......................... 259
Snow mode switch ............................ 161, 167 Tilt and telescopic steering control switch
............................................................................129
Tire pressure warning reset switch.... 310
Trunk opener main switch........................ 115
Trunk opener switch ................................... 113
Vehicle-to-vehicle distance switch... 207
VSC OFF switch .......................................236
Window lock switch.................................. 135
Windshield wiper and washer switch180
Windshield wiper de-icer switch.......256
T
Tachometer....................................................... 80 Variable red zone......................................... 82
Tail lights............................................................ 175 Light switch .....................................................175
Replacing light bulbs ................................328
Theft deterrent system Alarm................................................................... 70
Engine immobilizer system......................68
Theft prevention labels ................................. 71
Tire inflation pressure .................................. 317 Maintenance data ..................................... 383
Tire inflation pressure display function..........................................................................307
Warning light ...............................................344
Tire information ............................................ 387 Glossary ........................................................ 390
Size ................................................................... 388
Tire identification number..................... 388
Uniform Tire Quality Grading ........... 389
Tire pressure warning system ................ 307 Function ..........................................................307
Initializing......................................................... 310
Installing tire pres sure warning valves
and transmitters...................................... 309
Registering ID codes .................................312
Warning light ...............................................344
Tires...................................................................305 Chains ............................................................. 243
Checking ...................................................... 305
If you have a flat tire ..................................354

434Alphabetical index
Inflation pressure.......................................... 317
Information .................................................... 387
Replacing .........................................................313
Rotating tires ................................................ 307
Run-flat tires .....................................307, 354
Size....................................................................383
Snow tires ...................................................... 242
Tire inflation pressure display function
......................................................................... 307
Tire pressure warning system ............. 307
Warning light ............................................... 344
Tools....................................................................314
Top tether strap............................................... 52
Total load capacity ...................................... 376
Towing Dinghy towing ............................................... 147
Emergency towing ................................... 333
Towing eyelet ..............................................335
Trailer towing ................................................. 147
TRAC (Traction Control) ........................ 235
Traction battery (hybrid battery) ............. 63 Hybrid battery (traction battery) air vents............................................................................ 66
Location............................................................. 63
Specification ................................................. 378
Warning message........................................ 66
Traction Control (TRAC) ........................ 235
Traction motor (electric motor) ............... 60
Trailer towing .................................................. 147
Transmission Automatic transmission ............................ 157
Driving mode select switch .................... 216
Hybrid transmission ...................................163
M mode ................................................. 162, 168
Paddle shift switches .... 161, 162, 167, 168
Snow mode ........................................... 161, 167
Trip meters ........................................................ 80
Trunk .................................................................... 112 Internal trunk release lever .......................114
Smart access system with push-button start ................................................................... 113
Trunk features.............................................. 266 Trunk grip ......................................................... 114
Trunk light ......................................................... 114
Trunk opener main switch........................ 115
Trunk opener switch ................................... 113
Wireless remote control ........................... 113
Trunk light .......................................................... 114
Turn signal lights ............................................169 Replacing light bulbs ................................328
Turn signal lever .......................................... 169
U
Units ..................................................................... 87
V
Vanity lights.................................................... 268Wattage ......................................................... 384
Vanity mirrors ............................................... 268
Variable Gear Ratio Steering (VGRS)235
VDIM (Vehicle Dynamics Integrated Man- agement)...................................................... 236
Vehicle data recordings ..................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 236
Vehicle identification number ................ 376
Vehicle Stability Control (VSC) ........... 235
Ventilators (seat ventilators)................... 259
VGRS (Variable Gear Ratio Steering)235
VSC (Vehicle Stability Control) ........... 235
W
Warning buzzers Approach warning...................................... 212
Brake system................................................339
Downshifting ..................162, 163, 168, 169
Intuitive parking assist .............................. 222
LKA (Lane-Keeping Assist) .................. 199
Open door .............................................. 109, 111
Open hood ........................................................ 111
Open trunk ........................................................ 111
Open window .............................................. 135