tire size LEXUS LX570 2016 User Guide

495
LX570_OM_OM60N01U_(U) 6-3. Do-it-yourself maintenance
6
Maintenance and care
Tire inflation pressure The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(  P. 5 6 9 )Tire inflation pressure

499
LX570_OM_OM60N01U_(U) 6-3. Do-it-yourself maintenance
6
Maintenance and care
Wheels When replacing wheels, care should be taken to ensure that they are equivalent
to those removed in load capacity , diameter, rim width, and inset
* .
Replacement wheels are available at your Lexus dealer.
* : Conventionally referred to as “offset”.
Lexus does not recommend using the following: ●
Wheels of different sizes or types ●
Used wheels ●
Bent wheels that have been straightened ●
Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels. ●
When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km). ●
Be careful not to damage the aluminum wheels when using tire chains. ●
Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels. ■
When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. (  P. 4 8 7 )If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of handling
control.
Wheel selection
Aluminum wheel precautions

500
LX570_OM_OM60N01U_(U) 6-3. Do-it-yourself maintenance
WA R N I N G ■
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 a 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 accident.
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 servic ed by your Lexus dealer or other qualified
service shop. In addition, make sure to pu rchase 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 transmitte rs may not work properly with non-genu-
ine wheels.

5317-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U) 7
When trouble arises WA R N I N G ■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la bel (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 [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle ha s been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure 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 ma y affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is the driver’s resp onsibility to maintain correct tire pressure,
even if under-inflation has no t reached the level to trigger illumination of the TPMS low
tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one minu te and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning syst em) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressure warning system) to continue to function
properly.
NOTICE ■
To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

LX570_OM_OM60N01U_(U) 5698-1. Specifications
8
Vehicle specifications 
20-inch tires 
21-inch tiresSuspension Fluid type Suspension fluid AHC
Tires and wheels Ti r e s i z e 285/50R20 112V
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)
Trailer towing
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)
Ti r e s i z e 275/50R21 113V XL
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)
Trailer towing
Add 6 psi (40 kPa, 0.4 kgf/cm 2
or bar) to the
rear tires.
Wheel size 21 X 8 1 /2J
Wheel nut torque 97 ft•lbf (131 N•m, 13.4 kgf•m)

576
LX570_OM_OM60N01U_(U) 8-1. Specifications
■
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 dimensions
Section width
Tire height
Wheel diameterTire size 1
2
3
4
5
6
7
1
2
3

LX570_OM_OM60N01U_(U) 5818-1. Specifications
8
Vehicle specifications 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 sh are of curb weight, accessory
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
Bead separation A breakdown of the bond be tween components in the
bead
Bias ply tire A pneumatic tire in which the ply cords that extend to
the beads are laid at altern ate angles substantially less
than 90 degrees to the centerline of the tread
Carcass The tire structure, except tread and sidewall rubber
which, when inflated, bears the load
Chunking The breaking away of pieces of the tread or sidewall
Cord The strands forming th e plies in the tire
Cord separation The parting of cords from adjacent rubber compounds
Cracking Any parting within the tread, sidewall, or innerliner of
the tire extending to cord materialTire related term Meaning

629Alphabetical index
LX570_OM_OM60N01U_(U) Rear window wiper and
washer switch...................................235
Rear window and outside
rear view mirror defoggers
switch....................................................407
Seat heater switches...........................417
Seat ventilator switches ....................417
“SOS” button......................................... 451
Talk switch
* Telephone switches
*Tilt and telescopic steering
control switch .................................... 158
Tire pressure warning reset
switch................................................... 488
Vehicle-to-vehicle distance
button ................................................... 277
VSC OFF switch .............................. 380
Window lock switch.......................... 165
Windshield wipers and
washer switch.....................................231
Wireless charger power
supply switch ....................................436
Tachometer ............................................... 88
Tail lights................................................... 220
Light switch ...........................................220
Replacing light bulbs ......................... 510
Talk switch
* Telephone switch
*Theft deterrent system
Alarm........................................................... 78
Immobilizer system .............................. 76 Tire inflation pressure......................... 569
Maintenance data..............................569
Warning light ....................................... 526
Tire information .....................................574
Glossary................................................ 580
Size ........................................................... 576
Tire identification number ............. 575
Uniform Tire Quality Grading.... 578
Tire pressure warning system ..........487
Function .................................................. 487
Initializing ............................................... 487
Installing tire pressure warning
valves and transmitters................ 487
Registering ID codes ...................... 488
Tire pressure warning reset
switch .................................................. 488
Warning light ....................................... 526
Tires ........................................................... 486
Chains .....................................................385
Checking ...............................................486
If you have a flat tire ..........................536
Inflation pressure................................ 495
Replacing ............................................... 536
Rotating tires ........................................486
Size ...........................................................569
Snow tires .............................................. 384
Spare tire................................... 536, 569
Tire pressure warning system ..... 487
Warning light ....................................... 526
Tools .......................................................... 536
Total load capacity............................... 562T
* : Refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.

631Alphabetical index
LX570_OM_OM60N01U_(U) Warning lights ....................................... 524
ABS ...........................................................524
Automatic headlight leveling
system ................................................. 525
Brake system............................ 524, 527
Center differential lock....................526
Charging system................................524
Electric power st eering...................526
Low fuel level .......................................526
Low speed four-wheel
drive ......................................................526
Malfunction indicator lamp ...........524
Master warning light.........................526
Open door ............................................526
Parking brake.......................................526
PCS.......................................................... 525
Seat belt reminder light...................526
Slip indicator ........................................ 525
SRS ............................................................524
Tire pressure ........................................526 Warning messages.............................. 532
Warning reflector holder.................. 430
Washer ........................................... 231, 235
Checking ...............................................485
Preparing and checking
before winter .................................... 384
Switch ............................................ 231, 235
Washing and waxing .......................... 458
Weights .................................................... 562
Wheels ..................................................... 499
Replacing wheels ..............................536
Size ...........................................................569
Window glasses...................................... 165
Window lock switch.............................. 165
Windows
Power windows....................................165
Rear window defogger .................. 407
Washer ......................................... 231, 235
Windshield wiper de-icer ..................407
Windshield wipers ................................. 231
Winter driving tips ............................... 384
Wireless charger.................................. 436
Wireless remote control key.............. 110
Locking/Unlocking ............................. 110
Panic mode ............................................... 111
Replacing the battery ......................503
WMA disc
*
* : Refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.