wheel size LEXUS RX350 2020 User Guide

4578-1. Specifications
8
Vehicle specifications
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent
of matching quality to satisfy the above specification. Please contact your Lexus
dealer for further details.
*: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50 kgf) while
the engine is running.
Type A
Brakes
Pedal clearance*3.4 in. (86 mm) Min.
Pedal free play0.04  0.24 in. (1.0  6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Fluid typeFMVSS No. 116 DOT 3 or SAE J1703
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size235/65R18 106V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)
Add 5 psi (30 kPa, 0.3 kgf/cm
2 or bar) to the front and rear
tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.
Wheel size18  8J, 18  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

4588-1. Specifications
Type B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*1: Vehicles with sing le-beam headlights
*2: Vehicles without door trim ornament lights
Tire size235/55R20 102V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)
Add 11 psi (70 kPa, 0.7 kgf/cm
2 or bar) to the front and rear
tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.
Wheel size20  8J, 18  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Exterior
Front side marker lights*1W5W5B
Front turn signal lights*17444NA28/8A
Rear turn signal lights*1WY21W21A
Back-up lights*192116B
InteriorDoor courtesy lights*25B
Vanity lights8B

4638-1. Specifications
8
Vehicle specifications
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
Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Tire size
A
B
C
D
E
F
G
A
Tire section names
Uniform Tire Quality Grading
B
C
A
B
C
D
E
F
G
H
I
J
K

4668-1. Specifications
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 tire 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
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
Tire related termMeaning

514Alphabetical Index
V
Vanity lights.................................................... 338Wattage..........................................................458
Vanity mirrors ............................................... 338
VDIM (Vehicle Dynami cs Integrated Man-
agement)...................................................... 278
Vehicle data recording . ...................................6
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 278
Vehicle identification number ................ 452
Vehicle Stability Control (VSC) ............277
Ventilators (seat ventil ators).................... 310
VSC (Vehicle Stabilit y Control) ............277
W
Warning buzzers
Approach warning.................................... 235
Brake Override System ...........................415
Door lock.......................................................... 98
Downshifting .......................................183, 184
Drive-Start Control ....................................415
Electric power steering ............................415
Hands off steering wheel warning (LTA)......................................................................... 226
High coolant temperature ......................413
Intuitive parking assist.................... 252, 417
Low engine oil pressure........................... 414
LTA (Lane Tracing Assi st). 218, 221, 417
Open door..................................................... 100
Open window ...............................................146
PKSA (Parking Support Alert) ........... 245
PKSB (Parking Support Brake) .......... 418
Pre-collision braking.................................. 212
RCTA (Rear Cross Traffic Alert) ........ 417
Seat belt ............................................................416
Warning lights.................................................413 ABS ....................................................................415
Brake hold operated indicator .............419
Brake Override System ...........................415
Brake system ................................................. 413
Charging system ......................................... 414 Drive-Start Control.................................... 415
Electric power steering............................ 415
High coolant temperature.......................413
Intuitive parking assist OFF indicator 417
Low engine oil pressure...........................414
Low fuel level ................................................ 416
LTA indicator .................................................417
Malfunction indicator lamp .....................414
Master warning light.................................. 419
Parking brake indicator ........................... 419
PKSB OFF indicator ................................. 418
Pre-collision system................................... 418
RCTA OFF indicator .................................417
Seat belt reminder light............................ 416
Slip indicator .................................................. 418
SRS ......................................................................414
Tire pressure ..................................................417
Warning messages ..................................... 422
Washer Adding.............................................................370
Preparing and checking before winter..........................................................................283
Switch................................................................ 196
Washing and waxing..................................350
Weight Cargo capacity ....................................161, 164
Load limits ...................................................... 164
Weight.............................................................452
Wheels ............................................................. 384 Size .................................................................... 457
Window lock switch ..................................... 147
Windows Power windows ........................................... 145
Rear window defogger.......................... 298
Washer ............................................................ 196
Windshield wiper de-icer ........................ 303
Windshield wiper inserts ..........................388
Windshield wipers Position............................................................. 199
Rain-sensing windshield wipers .......... 196
Replacing a windshield wiper insert 388
Winter driving tips....................................... 283