tire size LEXUS RC300 2021 Owner's Manual

3418-1. Specifications
8
Vehicle specifications
Full-size tireTire size ( P.343)
DOT and Tire Identification Number (TIN) ( P.342)
Location of treadwear indicators ( P.265)
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.345)
Maximum cold tire inflation pressure ( P.345)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires ( P.266)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.
Tire information
Typical tire symbols
A
B
C
D
E
F
G
H
I
J

3428-1. Specifications
Compact spare tireTire size ( P.343)
DOT and Tire Identification Number (TIN) ( P.342)
Location of treadwear indicators ( P.265)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a 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.345)
Maximum cold tire inflation pressure ( P.345)
This means the pressure to which a tire may be inflated.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its
sidewall. This tire is designed for temporary emergency use only.
Type A
A
B
C
D
E
F
G
H
Typical DOT and Tire Identifica-
tion Number (TIN)

3438-1. Specifications
8
Vehicle specifications
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Tire size code
Manufacturer’s optional tire type
code (3 or 4 letters)
Manufacturing week
Manufacturing year
*:The DOT symbol certifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
Type B
DOT symbol
*
Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Manufacturing week
Manufacturing year
Manufacturer’s code
*:The DOT symbol cert ifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
■Typical tire size information
The illustration indicates typical tire
size.
Tire use (P = Passenger car, T =
Temporary use)
Section width (millimeters)
Aspect ratio (tire height to section
width)
Tire construction code (R = Radial,
D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol (alphabet with one
letter)
■Tire dimensionsSection width
Tire height
A
B
C
D
E
F
G
A
B
C
D
E
F
Tire size
A
B
C
D
E
F
G
A
B

3468-1. Specifications
Maximum loaded vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight
150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that fol-
lows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular produc-
tion options weighing over 5 lb. (2.3 kg) in excess of
the standard items which they replace, not previ-
ously considered in curb weight or accessory
weight, including heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assem-
bly upon which the tire beads are seated
Rim diameter (Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a rim
by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight (Total load
capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle’s designated seating capacity
Vehicle maximum load on the tire
The load on an individual ti re that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Vehicle normal load on the tire
The load on an individual ti re 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
Tire related termMeaning

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