inflation pressure LEXUS RCF 2021 Owner's Guide

3568-1. Specifications
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 accor dance with Table 1
* below), and
dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Bead
The 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 substan-
tially less than 90 degrees to the centerline 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 com-
pounds
CrackingAny parting within the tread, sidewall, or innerliner
of the tire extending to cord material
CT
A pneumatic tire with an inverted flange 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 underside of the rim in a manner that
encloses the rim flanges inside the air cavity of the
tire
Extra load tire
A tire designed to operat e at higher loads and at
higher inflation pressures than the corresponding
standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the in side surface of a tubeless
tire that contains the inflating medium within the tire
Tire related termMeaning

3578-1. Specifications
8
Vehicle specifications
Innerliner separationThe parting of the innerliner from cord material in
the carcass
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears
white lettering, or bear s 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) tire
A tire designated by its manufacturer as primarily
intended for use on lightwe ight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissi-
ble inflation pressure for that tire
Maximum permissible inflation pres-
sureThe maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimen-
sion 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 due
to labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross 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
Tire related termMeaning

3588-1. Specifications
Pneumatic tire
A mechanical device made of rubber, chemicals,
fabric and steel or other materials, that, when
mounted on an automotive wheel, provides the
traction and contains the gas or fluid that sustains
the load
Radial ply tire
A pneumatic tire in which the ply cords that extend
to the beads are laid at substantially 90 degrees to
the centerline of the tread
Reinforced tire
A tire designed to operat e at higher loads and at
higher inflation pressures than the corresponding
standard tire
Section width
The linear distance between the exteriors of the
sidewalls of an inflated tire, excluding elevations
due to labeling, decoration, or protective 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, compared to the ASTM E-1136
Standard Referenc e Test Tire, when using the snow
traction test as described in ASTM F-1805-00,
Standard Test Method fo r Single Wheel Driving
Traction in a Straight Line on Snow-and Ice-Cov-
ered Surfaces, and which is marked with an Alpine
Symbol ( ) on at least one sidewall
Test rimThe rim on which a tire is fitted for 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 ci rcumferentially around a
tire
Tread separationPulling away of the tread from the tire carcass
Tire related termMeaning

3698-3. 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 battery being reconnected, or maintenance being performed on
the vehicle:
List of items to initialize
ItemWhen to initializeReference
Message indicating
maintenance is
required (U.S.A. only)
After the maintenance is performedP.257
Tire pressure warning
system
• When rotating the tires
• When changing the tire inflation pres- sure by changing traveling speed or
load weight, etc.
P.278

402Alphabetical Index
Tilt and telescopic steering control switch.......................................................................... 108
Tire pressure warning reset switch .. 278
Trunk opener main switch ....................... 98
Trunk opener switch ................................... 96
TVD (Toruqe Vector ing Differential)
switch............................................................. 198
VSC OFF switch .......................................200
Window lock switch ................................... 113
Windshield wiper and washer switch143
Windshield wiper de-icer switch ........ 217
T
Tachometer....................................................... 66 Rev indicator ................................................... 70
Rev peak ............................................................. 71
Tail lights Light switch .................................................... 138
Replacing light bulbs................................289
Theft deterrent system Alarm ..................................................................58
Engine immobilizer system ..................... 57
Theft prevention labels............................... 60
Tire inflation pressure Maintenance data...................................... 347
Tire inflation pressu re display function
......................................................................... 275
Tire pressure warning light ................... 307
Tire information ..............................................351 Glossary......................................................... 354
Size.................................................................... 352
Tire identification number ..................... 352
Uniform Tire Quality Grading............353
Tire infration pressure ...................................76
Tire pressure display .................................. 275
Tire pressure warning system Function .......................................................... 275
Initializing ........................................................277
Installing tire pressure warning valves and transmitters .......................................277
Registering ID codes ............................... 278
Tire pressure warning light ................... 307 Tires
Chains ............................................................ 205
Checking ....................................................... 273
Emergency tire puncture repair kit.... 319
If you have a flat tire ......................... 313, 319
Inflation pressure ........................................ 279
Information ..................................................... 351
Replacing ........................................................ 313
Rotating tires ................................................ 275
Size .................................................................... 347
Snow tires ......................................................204
Spare tire ......................................................... 313
Tire inflation pressure display function.......................................................................... 275
Tire pressure warning light ...................307
Tire pressure warning system ............. 275
Tools........................................................ 314, 320
Top tether strap........................................ 43, 51
Toruqe Vectoring Differential (TVD) .. 198
Total load capacity ...................................... 342
Towing Dinghy towing ............................................... 127
Emergency towing.................................... 297
Towing eyelet...............................................299
Trailer towing ................................................. 127
TRAC (Traction Control) ........................200
Traction Control (TRAC) ........................200
Trailer towing .................................................. 127
Transmission Automatic transmission ............................132
Driving mode select switch ....................192
M mode ........................................................... 135
Paddle shift switches ....................... 134, 135
Trip meters .........................................................72
Trunk .................................................................... 95 Smart access system with push-button start ...................................................................96
Trunk features .............................................. 227
Trunk grip ......................................................... 97
Trunk light ......................................................... 97
Trunk opener main switch........................98
Trunk opener switch ................................... 96

408
GAS STATION INFORMATION
Auxiliary catch lever (P.264)
Trunk opener ( P.96)
Fuel filler door ( P.151)
Hood lock release lever ( P.264)
Tire inflation pressure ( P.347)
Fuel tank capacity (Ref-
erence)17.5 gal. (66.3 L, 14.6 Imp. gal.)
Fuel typeUnleaded gasoline onlyP.343
P.349
Cold tire inflation pres-
sureP.347
Engine oil capacity
(Drain and refill  ref-
erence)
P.343
Engine oil typeP.343
A
B
C
D
E