tires LEXUS LX570 2020 Workshop Manual

564
LX570_OM_OM60R61U_(U)8-1. Specifications
Maintenance data (fuel, oil level, etc.)
*1: Unladen vehicles
*2: Vehicles with roof antenna
*3: Vehicles with 20-inch tires
*4: Vehicles with 21-inch tires
Dimensions and weights
Overall length200.0 in. (5080 mm)
Overall width78.0 in. (1980 mm)
Overall height*173.4 in. (1865 mm)
75.2 in. (1910 mm)
*2
Wheelbase112.2 in. (2850 mm)
Tread
Front64.8 in. (1645 mm)*3
65.0 in. (1650 mm)*4
Rear64.6 in. (1640 mm)*3
65.0 in. (1650 mm)*4
Vehicle capacity weight
(Occupants + luggage)1285 lb. (580 kg)
TWR
(trailer weight +
cargo weight)With brake7000 lb. (3175 kg)
Without
brake1000 lb. (454 kg)

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

LX570_OM_OM60R61U_(U)
5798-1. Specifications
8
Vehicle specifications
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administra tion of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospe ctive purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any ques tions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements in
addition to these grades. Quality grades can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Treadwear
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditio ns on a specified government test
course.
For example, a tire graded 150 would wear one and a half (1 - 1/2) times as well on
the government course as a tire graded 100.
The relative performance of tires depends upon the actua l conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and difference s in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and they rep-
resent the tire’s ability to stop on wet pavement as measured under controlled
conditions on specified government test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
Uniform Tire Quality Grading

580
LX570_OM_OM60R61U_(U)8-1. Specifications
■Temperature A, B, C
The temperature grades are A (the highes
t), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the ma terial of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underi nflation, or excessive loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.

600
LX570_OM_OM60R61U_(U)8-3. Initialization
Items to initialize
*: If equipped
The following item must be initialized for normal system operation such cases
as the battery being reconnected, or
maintenance being performed on the
vehicle:
ItemWhen to initializeReference
Message indicating mainte-
nance is required (U.S.A. only)After the maintenance is per-
formedP. 469
Power back door
• After reconnecting or changing the battery with power back door
opened
• After changing a fuse with power
back door opened
P. 128
Tire pressure warning system
• When the set tire pressure hasbeen changed before towing.
• When rotating the tires in above situation.
P. 490
Multi-terrain MonitorAfter reconnecting or changing the
batteryP. 368
Engine oil maintenance data*After the maintenance is per-
formedP. 479

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

630Alphabetical index
LX570_OM_OM60R61U_(U)
Snow tires ................................................ 389
“SOS” button..............................................74
Spare tireInflation pressure ................................. 571
Storage location .................................537
Spark plug ............................................... 568
Specifications ......................................... 564
Speedometer ............................................ 92
SRS airbags................................................ 38
Steering Column lock release ..........................213
Fluid.......................................................... 570
Steering wheel .........................................164 Adjustment ............................................. 164
Audio switches
*
Meter control switches ......................98
Power easy access system ............ 157
Telephone switches
*
Stop/tail lightsReplacing light bulbs ......................... 512
Storage feature ..................................... 428
Stuck If the vehicle becomes stuck ....... 560
Sun visors ................................................. 439
Sunshade Roof............................................................ 175
Rear door...............................................452 Switch
Audio remote control switches
*
Automatic High Beam switch ..... 232
Center differential lock/unlock switch .......................................................311
Climate concierge switch .............406
Cruise control switch ..........276, 288
Door lock switch.................................. 123
Driving mode select switch ............ 291
Driving position memory switches ............................................... 158
Emergency flashers switch .............514
Engine switch ..........................................211
Fog light switch ................................... 236
Four-wheel drive control switch .................................................... 310
Garage door opener switches .............................................. 454
Headlight cleaner switch ............... 245
Interior light switch............................ 426
Intuitive parking assist...................... 294
Ignition switch..........................................211
LDA (Lane Departure Alert)....... 270
Light switches ...................................... 228
Meter control switches ...................... 98
Moon roof switches ........................... 174
Outside rear view mirror switches ............................................... 168
Paddle shift switches.......................... 219
Personal light switch .........................427
Power back door switch................. 130
Power door lock switch ................... 123
Power window switch ......................... 171

631Alphabetical index
LX570_OM_OM60R61U_(U)
Rear window wiper and washer switch................................... 242
Rear window and outside rear view mirror defoggers
switch..................................................... 413
Seat heater switches......................... 423
Seat ventilator switches .................. 423
“SOS” button........................................... 74
Talk switch
*
Telephone switches*
Tilt and telescopic steering control switch .................................... 164
Tire pressure warning reset switch....................................................492
Vehicle-to-vehicle distance button ...................................................282
VSC OFF switch .............................. 385
Window lock switch............................ 171
Windshield wipers and washer switch.................................. 238
Wireless charger power supply switch ....................................443
Tachometer ............................................... 92
Tail lights................................................... 228 Light switch ...........................................228
Replacing light bulbs ......................... 512
Talk switch
*
Telephone switch*
Theft deterrent system Alarm........................................................... 82
Immobilizer system ............................. 80 Tire inflation pressure........................... 571
Maintenance data................................ 571
Warning light ....................................... 527
Tire information .....................................575 Glossary.................................................. 581
Size ........................................................... 577
Tire identification number ............. 576
Uniform Tire Quality Grading.... 579
Tire pressure warning system ........... 491 Function ....................................................491
Initializing .................................................491
Installing tire pressure warning valves and transmitters..................491
Registering ID codes ....................... 492
Tire pressure warning reset switch ................................................... 492
Warning light ....................................... 527
Tires ........................................................... 490 Chains .....................................................390
Checking ...............................................490
If you have a flat tire .......................... 537
Inflation pressure................................ 499
Replacing ............................................... 537
Rotating tires ........................................490
Size ............................................................. 571
Snow tires ..............................................389
Spare tire...................................... 537, 571
Tire pressure warning system .......491
Warning light ....................................... 527
Tools ...........................................................537
Total load capacity............................... 564
T
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.