2010 Lexus GX460 tires

765
6-1. Specifications
6
Vehicle specifications
GX460_U.S.A. (OM60E69U)
Tire information
Ty p i c a l t i r e s y m b o l s
Tire size(P. 76 8 )
DOT and Tire Identification Number (TIN) ( P. 76 7 )
Location of treadwear indicators ( P. 6 2 7 )
Tire ply composition and materials
Plies are layers of rubber-coated 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.

770
6-1. Specifications
GX460_U.S.A. (OM60E69U)
Uniform Tire Quality GradingThis information has b een prepared in accorda nce with regulations
issued by the National Highway Traffic Safety Administration of the U.S.
Department of Transportation. 
It provides the purchasers and/or pr ospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer an y questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must co nform to Federal Safety Require-
ments 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 rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment 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 de pends upon the actual conditions of
their use. Performance may differ significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.

771
6-1. Specifications
6
Vehicle specifications
GX460_U.S.A. (OM60E69U)■
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire’s ability to stop on wet pavement as measured
under controlled condit ions 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) trac-
tion.
■ Temperature A, B, C
The temperature grades are A (the hi ghest), 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 material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Mo tor 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, underinflation, or excess ive loading, either separately or in
combination, can cause heat build up and possible tire failure.

816
Alphabetical index
GX460_U.S.A. (OM60E69U)
Parking assist sensors .........................259
Parking brake .......................................... 193
Parking lightsReplacing light bulbs........................665
Switch ...................................................... 220
Wattage.................................................... 761
PCS ........................................................... 338
Personal lights Personal lights ........................................ 511
Switch ........................................................513
Wattage.................................................... 761
Power steering Fluid ..........................................................620
Power outlet.....................535, 537, 542
Power windows ........................................101
Pre-Collision System ......................... 338
Radar cruise control ............................ 246
Radiator ......................................................617
Radio ......................................................... 408
RDS (Radio Date System) ................. 410
Rear height control 
air suspension ...................................... 310
Rear seat Adjustment............................................... 68
Folding down the second 
seatbacks ....................................... 70, 71
Folding down the third seats ...........73
Rear side marker lights Replacing light bulbs........................ 667
Wattage.................................................... 761
Rear step bumper....................................55
Rear turn signal lights Replacing light bulbs........................ 667
Wattage.................................................... 761 Rear view mirror
Compass ............................................... 575
Rear view monitor system .................274
Rear window defogger ...................... 404
Rear window wiper and washer ..... 239
Replacing Electronic key battery ......................642
Fuses ........................................................ 645
Light bulbs ............................................ 660
Tires...........................................................720
Reporting safety defects for 
U.S. owners..........................................804
Scuff lighting .............................................. 511
Seat belts Adjusting the seat belt ........................87
Automatic Locking Retractor ........ 88
Child restraint system 
installation ............................................ 152
Cleaning and maintaining 
the seat belts .................................... 593
Emergency Locking 
Retractor ............................................... 88
How to wear your seat belt ............ 86
How your child should wear 
the seat belt.......................................... 89
Pre-collision seat belts....................... 88
Pregnant women, 
proper seat belt use ........................ 89
Reminder light..................................... 690
Seat belt extenders.............................. 90
Seat belt pretensioners ....................... 91
Seat heaters ............................................. 551
Seat position memory............................ 79
Seat ventilator ......................................... 551
Seating capacity.................................... 359P
R
S

818
Alphabetical index
GX460_U.S.A. (OM60E69U)
Fog light switch ................................... 233
Hazard light Switch .......................... 674
Heated steering wheel switch.....549
Height control off switch................. 310
Ignition switch........................................ 179
Light switches ...................................... 220
Power door lock switch ...................... 51
Power window switch ........................ 101
“RSCA OFF” switch.......................... 138
Rear window defogger switch ................................................... 404
Transmission shift switch................. 189
Window lock switch ........................... 101
Wipers and washer switch ........... 235
Tachometer .............................................. 195
Tail lights Replacing light bulbs........................ 670
Switch ...................................................... 220
Talk switch
*............................................482
Telephones switch
*.............................482
Theft deterrent system Alarm .......................................................... 116
Engine immobilizer system ..............114
Tire inflation pressure ......................... 634
Tire information Glossary..................................................772
Size ........................................................... 768
Tire identification number ............. 767
Uniform Tire Quality Grading.... 770
Tires Chains .......................................................361
Checking ............................................... 627
If you have a flat tire .......................... 720
Inflation pressure................................ 760
Information............................................ 765 Pressure warning system ............... 627
Replacing ...............................................720
Rotating tires......................................... 627
Size ........................................................... 760
Snow tires................................................ 361
Spare tire ................................................720
Tire pressure warning

system................................................... 627
Tools........................................................... 720
Total load capacity ............................... 359
Towing Dinghy towing ....................................380
Emergency towing ........................... 675
Trailer towing ...................................... 365
TRAC ..........................................................331
Traction control.......................................331
Trailer towing ......................................... 365
Transmission shift switches................ 189
Trip information display ....................... 212
Trip meter ................................................. 195
Turn signal lights Replacing light bulbs ........... 666, 667
Switch ........................................................ 192
Wattage ................................................... 761
Vanity lights Vanity lights.......................................... 532
Wattage ................................................... 761
Vanity mirrors ........................................... 532
Vehicle identification number...........751
Vehicle load limits ................................ 359
Ventilators ................................................ 551
VSC (Vehicle Stability Control) ....330
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