wheel size LEXUS LX570 2021 User Guide

5317-2. Steps to take in an emergency
LX570_OM_OM60T33U_(U)
7
When trouble arises
WARNING
■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 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 [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 si gnificantly 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 wa rning system) is not a substitute for proper
tire maintenance, and it is th e driver’s responsibility to ma intain correct tire pressure,
even if under-inflation has not reached the le vel to trigger illumination of the TPMS low
tire pressure telltale (tir e 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 mi nute and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction in dicator 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 system) 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 pressu re warning system) to continue to function
properly.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning
system may not operate properly.

LX570_OM_OM60T33U_(U)
5698-1. Specifications
8
Vehicle specifications
20-inch tires
21-inch tires
Suspension
Fluid typeSuspension fluid AHC
Tires and wheels
Tire size285/50R20 112V
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Normal drivingFront:
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 size20  8 1/2J
Wheel nut torque97 ft•lbf (131 N•m, 13.4 kgf•m)
Tire size275/50R21 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 size21 X 8 1/2J
Wheel nut torque97 ft•lbf (131 N•m, 13.4 kgf•m)

LX570_OM_OM60T33U_(U)
5758-1. Specifications
8
Vehicle 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 diameter
Tire size
1
2
3
4
5
6
7
1
2
3

580
LX570_OM_OM60T33U_(U)8-1. Specifications
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 desi gnated seating capacity
Vehicle maximum load on
the tireThe 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
Weather sideThe surface area of the rim not covered by the inflated
tire
BeadThe 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 tireA 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
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 th e plies in the tire
Cord separationThe parting of cords from adjacent rubber compounds
CrackingAny parting within the tread, sidewall, or innerliner of
the tire extending to cord material
Tire related termMeaning

632Alphabetical index
LX570_OM_OM60T33U_(U)
Warning lights ....................................... 524ABS...........................................................524
Automatic headlight leveling system ................................................. 525
Brake system............................ 524, 527
Center differential lock....................526
Charging system................................524
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
Power steering system....................526
Seat belt reminder light...................526
Slip indicator ........................................ 525
SRS ............................................................524
Tire pressure ........................................526 Warning messages.............................. 532
Warning reflector holder.................. 436
Washer .......................................... 238, 242
Checking ...............................................489
Preparing and checking before winter ....................................390
Switch .......................................... 238, 242
Washing and waxing ...........................462
Weights .................................................... 562
Wheels ..................................................... 503 Replacing wheels ..............................536
Size ...........................................................569
Window glasses........................................171
Window lock switch................................171
Windows Power windows...................................... 171
Rear window defogger .................... 413
Washer ....................................... 238, 242
Windshield wiper de-icer ................... 413
Windshield wipers ............................... 238
Winter driving tips ............................... 390
Wireless charger...................................443
Wireless remote control key.............. 116 Locking/Unlocking ............................. 116
Panic mode .............................................. 117
Replacing the battery ...................... 507
WMA disc
*
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.