tire size LEXUS LX570 2014 User Guide

7764-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■
When replacing wheels
The wheels of your Lexus are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warning system to provide advanced warning in
the event of a loss in tire inflation pres sure. Whenever wheels are replaced, the tire
pressure warning valves and transmitters must be installed. (  P. 76 3 )
CAUTION■
When replacing wheels ●
Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in loss of handling control.●
Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident , causing death or serious injury.■
Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an acci-
dent.
NOTICE■
Replacing tire pressure warning valves and transmitters ●
Because tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by your Lexus dealer or other
qualified service shop. In addition, make sure to purchase your tire pressure
warning valves and transmitters at your Lexus dealer. ●
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-
genuine wheels.

8305-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) CAUTION■
Maintenance of the tires
Each tire, including the spare (if provided ), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressu re label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [t ire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (TPMS-tire pressure wa rning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).

8896-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L21U_(U) Suspension
Tires and wheels Fluid type Suspension fluid AHC
Ti r e s i z e P285/50R20 111V
Tire inflation pressure
(Recommended cold tire inflation
pressure) Normal driving
Front:
33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Rear:
33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Spare:
33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Tr a i l e r t o w i n g
Add 2 psi (10 kPa, 0.1 kgf/cm 2
or bar) to the
rear tires.
Wheel size 20  8 1 /2J
Wheel nut torque 97 ft•lbf (131 N•m, 13.4 kgf•m)

8956-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L21U_(U) Tire information Ty p i c a l t i r e s y m b o l s
Tire size (  P. 8 9 7 )
Summer tire or all season tire (  P. 76 6 )An all season tire has “M+S” on the si dewall. A tire not marked “M+S” is a
summer tire.
Uniform tire quality grading For details, see “Uniform Tire Quality Grading” that follows.
DOT and Tire Identification Number (TIN) (  P. 8 9 6 )
Tire ply composition and materials Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.
Location of treadwear indicators (  P. 76 2 )
Load limit at maximum cold tire inflation pressure (  P. 900)
Maximum cold tire inflation pressure (  P. 900)This means the pressure to which a tire may be inflated.

8966-1. Specifications
LX570_OM_OM60L21U_(U) Typical DOT and tire identification number (TIN)
DOT symbol
*Tire Identification Number (TIN)
Tire manufacturer’s identifica-
tion 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.TUBELESS or TUBE TYPE A tubeless tire does not have a tube an d air is directly filled in the tire. A
tube type tire has a tube inside the ti re and the tube maintains the air pres-
sure.
Radial tires or bias-ply tires A radial tire has RADIAL on the sidewall. A tire not marked RADIAL is a
bias-ply tire.

8976-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L21U_(U) Tire size
■ Typical tire size information
The illustration indicates typical
tire size.
Ti r e u s e
(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 or 3 digits)
Speed symbol
(alphabet with one letter)
■ Tire dimensions
Section width
Ti r e h e i g h t
Wheel diameter

9016-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L21U_(U) Tire related term Meaning
Production options weight The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
Rim A metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter) Nominal diameter of the bead seat
Rim size designation Rim diameter and width
Rim type designation The industry manufacturer’s designation for a rim by
style or code
Rim width Nominal 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 dis-
tributing 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 tire that is determined by dis-
tributing to each axle its share of curb weight, acces-
sory weight, and normal occupant weight (distributed
in accordance with Table 1
* below), and dividing by
two
We a t h e r s i d e The 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

944Alphabetical index
LX570_OM_OM60L21U_(U) Rear window wiper and
washer switch .................................. 226
VIEW switch ......................................... 301
Window lock switch ..........................107
Wipers and washer
switch ....................................... 220, 226
Tachometer .............................................. 190
Tail lights
Switch ......................................................206
Talk switch ...........................441, 460, 631
Telephone switch ................................... 612
Theft deterrent system
Alarm .......................................................... 119
Engine immobilizer system .............. 117
Tie-down hooks .......................................712
Tire inflation pressure ........................... 771
Tire pressure warning system.......... 762
Tire information
Glossary................................................ 900
Size .......................................................... 889
Tire identification number ............ 896
Uniform tire quality grading ........ 898
Tires
Chains ..................................................... 374
Checking ............................................... 762
If you have a flat tire ..........................849
Inflation pressure.................................. 771
Replacing ...............................................854
Rotating tires ........................................ 762
Size .......................................................... 889
Snow tires .............................................. 374
Spare tire................................................849
Tools ...........................................................849 Total load capacity .............................. 880
Touch screen.......................................... 402
Towing
Dinghy towing .................................... 399
Emergency towing ............................. 814
Trailer towing .......................................379
TRAC ........................................................ 347
Traction control..................................... 347
Trailer towing ......................................... 379
Trip information display .....................200
Trip meter ................................................. 190
Turn signal lights
Replacing light bulbs ..........803, 805
Switch ........................................................ 187
Wattage .................................................890
Vanity lights
Vanity lights.......................................... 698
Wattage .................................................890
Vanity mirrors ........................................ 698
Variable gear ratio steering ............. 347
Vehicle data recordings ....................... 24
Vehicle identification
number ................................................... 881
Vehicle load limits ................................ 373
Vehicle stability control ..................... 347
Ventilators ............................................... 705
VGRS ........................................................ 347
Voice command
switch
* .............................. 441, 460, 631
VSC ........................................................... 347T
V