inflation pressure LEXUS RC350 2021 Owner's Guide

3478-1. Specifications
8
Vehicle specifications
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
Innerliner separationThe parting of the innerliner from cord material in
the carcass
Tire related termMeaning

3488-1. 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) 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
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
Tire related termMeaning

3498-1. Specifications
8
Vehicle specifications
*: Table 1 - Occupant loading and distribution for vehicle normal load for various desig-
nated seating capacities
Radial ply tire
A pneumatic tire in which the ply cords that extend
to the beads are laid at su bstantially 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
Treadwear indicators (TWI)
The projections within the principal grooves
designed to give a visual indication of the degrees
of wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire assembly
securely during testing
Tire related termMeaning

3618-3. 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
After the maintenance is performedP.248
Engine oil mainte-
nance dataAfter changing the engine oilP.260
Tire pressure warning
system
• When rotating the tires
• When changing the tire inflation pres- sure by changing traveling speed or
load weight, etc.
P.270

394Alphabetical Index
Outside rear view mirror switches ...... 110
Paddle shift switches ....................... 133, 134
Parking brake switch ................................. 137
PCS OFF switch ..........................................164
Power door lock switch ............................ 90
Power window switches ............................112
Rear window and outside rear view mir-ror defoggers switch ..............................215
Seat heater switches ................................ 223
Seat ventilator switches .......................... 223
Snow mode switch .....................................133
“SOS” button .................................................. 52
Tilt and telescopic steering control switch .......................................................................... 108
Tire pressure warning reset switch .. 270
Trunk opener main switch ....................... 94
Trunk opener switch ................................... 92
VSC OFF switch ....................................... 202
Window lock switch ................................... 113
Windshield wiper and washer switch147
Windshield wiper de-icer switch ........ 219
T
Tachometer....................................................... 66 Rev indicator ................................................... 69
Rev peak ........................................................... 69
Tail lights Light switch ..................................................... 142
Replacing light bulbs................................ 282
Wattage..........................................................338
Theft deterrent system Alarm .................................................................. 57
Engine immobilizer system ..................... 56
Theft prevention labels............................... 59
Tire inflation pressure Maintenance data...................................... 334
Tire inflation pressu re display function
.........................................................................268
Warning light .............................................. 300
Tire information ..............................................341 Glossary......................................................... 345
Size.................................................................... 343 Tire identification number...................... 342
Uniform Tire Quality Grading ............344
Tire infration pressure .................................. 75
Tire pressure display ... ............................... 268
Tire pressure warning system Function ......................................................... 268
Initializing........................................................269
Installing tire pres sure warning valves
and transmitters.......................................269
Registering ID codes ................................. 271
Warning light .............................................. 300
Tires Chains ............................................................ 206
Checking .......................................................265
If you have a flat tire ..................................307
Inflation pressure ........................................ 273
Information ......................................................341
Replacing .......................................................307
Rotating tires ................................................ 267
Size ....................................................................334
Snow tires ..................................................... 205
Spare tire ........................................................307
Tire inflation pressure display function......................................................................... 268
Tire pressure warning system ............ 268
Warning light .............................................. 300
Tools.................................................................. 307
Top tether strap.........................................41, 49
Total load capacity ...................................... 328
Towing Dinghy towing ...............................................126
Emergency towing................................... 289
Towing eyelet.................................................291
Trailer towing .................................................126
TRAC (Traction Control) ..........................201
Traction Control (TRAC) ..........................201
Trailer towing ..................................................126
Transmission Automatic transmission ............................. 131
Driving mode select switch ................... 199
M mode ............................................................134
Paddle shift switches ....................... 133, 134

400
GAS STATION INFORMATION
Auxiliary catch lever (P.255)
Trunk opener ( P.92)
Fuel filler door ( P.156)
Hood lock release lever ( P.255)
Tire inflation pressure ( P.334)
Fuel tank capacity (Ref-
erence)17.5 gal. (66.3 L, 14.6 Imp. gal.)
Fuel typeUnleaded gasoline onlyP.330
P.339
Cold tire inflation pres-
sureP.334
Engine oil capacity
(Drain and refill  ref-
erence)
P.330
Engine oil typeP.330
A
B
C
D
E