Page 777 of 960
7754-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Tire inflation pressure ■ Tire inflation pressure
The recommended cold tire inflation pressure and tire size are dis-
played on the tire and loading information label. ( P. 895)
Page 781 of 960

7794-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L96U_(U) Wheels If a wheel is bent, cracked or heavil y corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of handling
control.
■ Wheel selection
When replacing wheels, care shoul d 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 referr ed to as “offset”.
Lexus does not recommend using:
● Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened
■ Aluminum wheel precautions
● Use only Lexus wheel nuts and wrenches designed for use with
your aluminum wheels.
● When rotating, repairing or chan ging 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 balanc e weights or equivalent and a
plastic or rubber hammer when balancing your wheels.
Page 782 of 960

7804-3. Do-it-yourself maintenance
LX570_OM_OM60L96U_(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 pressure. Whenever wheels are replaced, the tire
pressure warning valves and tran smitters must be installed. ( P. 767)
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 re placement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by your Le xus dealer or other
qualified service shop. In addition, make sure to purchase your tire pressure
warning valves and transmitte rs at your Lexus dealer.●
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valv es and transmitters may not work properly with non-
genuine wheels.
Page 838 of 960

8365-2. Steps to take in an emergency
LX570_OM_OM60L96U_(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 recommended 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 si ze than the size indi cated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflati on pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (T PMS-tire pressure wa rning system) that illuminates a low tire
pressure telltale (tire pressure warning ligh t) when one or more of your tires is sig-
nificantly under-inflated. Acco rdingly, when the low tire pr essure telltale (tire pres-
sure warning light) illuminates, you shou ld 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 an d 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).
Page 899 of 960
8956-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L96U_(U) Suspension
Tires and wheels Fluid type Suspension fluid AHC
Tire size 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)
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)
Page 905 of 960
9016-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L96U_(U) Tire information Typical tire symbols
Tire size ( P. 903)
Summer tires or all season tires ( P. 770)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. 902)
Tire ply composition and materials Plies are layers of rubber-coated pa rallel cords. Cords are the strands
which form the plies in a tire.
Location of treadwear indicators ( P. 766)
Load limit at maximum co ld tire inflation pressure ( P. 906)
Maximum cold tire inflation pressure ( P. 906)This means the pressure to wh ich a tire may be inflated.
Page 906 of 960
9026-1. Specifications
LX570_OM_OM60L96U_(U) Typical DOT and Tire Iden tification 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 and air is directly put into 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.
Page 907 of 960
9036-1. Specifications
6
Vehicle specifications
LX570_OM_OM60L96U_(U) Tire size
■ 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