tire type LEXUS LX570 2020 Owners Manual

15Pictorial index
LX570_OM_OM60R61U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 238
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 389
To prevent freezing (windshield wiper de-icer) . . . . . . . . . . . . . . . . . . . . . . . . . P. 413
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 463
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 246
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 566
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 490
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 571
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 38 9
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 490
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 537
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 476
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 476
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 566
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 557
Camera*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 323
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Fog lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 236
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 2 24
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 384
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21 7
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
4
5
6
7
8
Light bulbs of the exterior lights for driving
*: If equipped
9
10
11
12
13
14
15
16

338
LX570_OM_OM60R61U_(U)4-5. Using the driving support systems
■Rear view & dual side
view/wide rear view
Guide lines are displayed in a composite view on an image of the area to the
rear of the vehicle to use as a refere nce when deciding a course of movement
and assist the driver to check the safety of the area to the rear of the vehicle or
to park the vehicle.
●Screen description
The following 2 types of display mode can be selected according to condi-
tions.
Angle selection switch
Switches between rear view & dual side vi ew display and wide rear view display each
time the switch is selected.
Tilt meter/slip display
 P. 334
Projected course lines (yellow)
Indicate the estimated course of the vehicle according to steering operations.
1.5 ft. (0.5 m) distance guide line (red)
3 ft. (1 m) distance guide line (yellow)
8 ft. (2.5 m) distan ce guide line (yellow)
, and indicate the estimated distance from the rear end of the vehicle.
Vehicle width extension guide line (blue)
Indicates the estimated vehicle width including the outside rear view mirrors.
Front tire contact line (blue)
Rear tire contact line (blue)
Items and indicate estimated tire positions on the image.
Rear view & dual side view displayWide rear view display
1
2
3
4
5
6
456
7
8
9
89

LX570_OM_OM60R61U_(U)
3914-6. Driving tips
4
Driving
Regulations regarding the use of tire chains vary depending on location and type
of road. Always check local regulations before installing chains.
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires. Do not install tire chains on the front tires.
●Install tire chains on rear tires as tightly as possible. Retighten chains after driving 1/4 -
1/2 mile (0.5 - 1.0 km).
●Install tire chains following the instructions provided with the tire chains.
Regulations on the use of tire chains
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehi cle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains (vehicles with 20-inch tires)
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the ti re chains being used, or 30
mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained.
●Do not use LDA (Lane Departure Alert) system. (if equipped)
■When installing tire chains (vehicles with 20-inch tires)
Turn off the vehicle height control.
The vehicle height may change due to the automatic leveling function and you may
catch part of your body in the vehicle, resulting in an accident. ( P. 305)

494
LX570_OM_OM60R61U_(U)6-3. Do-it-yourself maintenance
■Tire types
●Summer tires
Summer tires are high-speed performance ti
res best suited to highway driving under
dry conditions. Since summer tires do not have the same traction performance as
snow tires, summer tires are inadequate for driving on snow-covered or icy roads. For
driving on snow-covered roads or icy road s, the use of snow tires is recommended.
When installing snow tires, be sure to replace all four tires.
●All season tires
All season tires are designed to provide better traction in snow and to be adequate for
driving in most winter conditions, as well as for use year round. All season tires, how-
ever, do not have adequate traction perfor mance compared with snow tires in heavy
or loose snow. Also, all season tires fall short in acceleration and handling perfor-
mance compared with summer tires in highway driving.
●Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If
you need snow tires, select ti res of the same size, construction and load capacity as the
originally installed tires. Since your vehicle has radial tires as original equipment, make
sure your snow tires also have radial cons truction. Do not install studded tires without
first checking local regulations for possible re striction. Snow tires should be installed
on all wheels. ( P. 389)
■Initializing the tire pressure warning system
Initialize the tire pressure warn ing system with the tire inflation pressure adjusted to the
specified level.
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tire s as snow tires is lost.
■If you press the tire pressure warning reset switch accidentally
If initialization is performed, adjust the tire inflation pressure to the specified level and ini-
tialize the tire pressure warning system again.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects th e radio wave signals is installed.
• If there is a lot of snow or ice on the vehi cle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extr emely higher than the specified level.
• If the spare tire is in a location subj ect to poor radio wave signal reception.
• If a large metallic object which can interfere with signal reception is put near the spare tire.
• If tires not equipped with the tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.

503
LX570_OM_OM60R61U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Wheels
When replacing wheels, care should be ta
ken 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. 491)
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
Aluminum wheel precautions

LX570_OM_OM60R61U_(U)
5718-1. 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)

575
LX570_OM_OM60R61U_(U)8-1. Specifications
8
Vehicle specifications
Tire information
Tire size
( P. 577)
DOT and Tire Identification Number (TIN) ( P. 576)
Location of trea dwear indicators ( P. 490)
Tire ply composition and materials
Plies are layers of rubber-c oated parallel cords. Cords are the strands which form the
plies in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply
tire.
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 tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 581)
Maximum cold tire inflation pressure ( P. 581)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires ( P. 494)
An all season tire has “M+S” on the side wall. A tire not marked “M+S” is a summer
tire.
Typical tire symbols
1
2
3
4
5
6
7
8
9
10

576
LX570_OM_OM60R61U_(U)8-1. Specifications
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer’s identification mark
Tire size code
Manufacturer’s optional tire type code (3 or 4 letters)
Manufacturing week
Manufacturing year
Manufacturer’s code
*: The DOT symbol certifies that the tire co
nforms to applicable Federal Motor Vehicle
Safety Standards.
Typical DOT and Tire Identification Number (TIN)
Type AType B
1
2
3
4
5
6
7
8

582
LX570_OM_OM60R61U_(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

628Alphabetical index
LX570_OM_OM60R61U_(U)
Power steeringFluid.......................................................... 570
Power windows ........................................ 171 Jam protection function ..................... 171
Operation ................................................. 171
Window lock switch............................ 171
Radar cruise control (dynamic radar cruise control with
full-speed range) ............................... 276
Radiator .................................................... 483
Radio
*
Rear air conditioning system ............ 418
Rear seat ................................................... 148 Adjustment ............................................. 148
Folding the third seats ........................ 151
Tumbling the second seats ............ 149
Rear side marker lights ...................... 228 Light switch ...........................................228
Replacing light bulbs ......................... 512
Rear turn signal lights ......................... 224 Replacing light bulbs ......................... 512
Turn signal lever ................................. 224
Rear view mirror Inside rear view mirror ..................... 166
Outside rear view mirrors .............. 168
Rear view monitor system
*
Rear window defogger ........................413
Rear window wiper.............................. 242
Refueling .................................................. 246 Capacity ................................................ 566
Fuel types .............................................. 566
Opening the fuel tank cap.............246 Remote touch/12.3-inch
display .................................................... 400
Replacing Electronic key battery ..................... 507
Fuses ....................................................... 509
Light bulbs............................................... 512
Tires .......................................................... 537
Reporting safety defects for U.S. owners ......................................... 602
Resetting the message indicating maintenance is required .................469
Safety Connect ......................................... 74
Scheduled maintenance ................... 468
Seat belts .................................................... 30 Adjusting the seat belt........................ 33
Automatic Locking Retractor ........ 34
Child restraint system installation ............................................... 61
Cleaning and maintaining the seat belt ............................................... 466
Emergency locking retractor ......... 34
How to wear your seat belt............. 28
How your child should wear the seat belt .......................................... 34
Pregnant women, proper seat belt use ................................................... 35
Reminder light and buzzer ........... 527
Seat belt extender ................................ 34
Seat belt pretensioners...................... 33
SRS warning light .............................. 525
R
S