tires Lexus GX460 2013 Service Manual

752
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow:
Stop the engine. Set the parking brake and shift the shift lever
to P.
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the engine.
Lock the center differential. (→ P. 327)
Release the parking brake and shift the shift lever to the D or R
position and carefully apply the accelerator to free the vehicle.
Turn off TRAC and VSC if these functions are hampering your
attempts to free the vehicle. ( →P. 3 4 2 )
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
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768
6-1. Specifications
GX460_OM_OM60J63U_(U)
Chassis lubrication
Steering
Tires and wheels
Propeller shafts
SpidersLithium base chassis grease, NLGI No.2
Slide yoke
Molybdenum-disulfide lithium base chassis
grease, NLGI No.2 or lithium base chassis
grease, NLGI No.2
Free playLess than 1.18 in. (30 mm)
Power steering fluid typeAutomatic transmission fluid DEXRON® II
or III
Ti r e s i z eP265/60R18 109H
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions Front:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Spare:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Wheel size18 × 7 1 /2 J
Wheel nut torque83 ft•lbf (112 N•m, 11.4 kgf•m)
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774
6-1. Specifications
GX460_OM_OM60J63U_(U)
Tire information
Ty p i c a l t i r e s y m b o l s
Tire size(→ P. 7 76 )
DOT and Tire Identification Number (TIN) (→P. 775)
Location of treadwear indicators (→ P. 636)
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.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly filled in the tire. A
tube type tire has a tube inside the ti re and the tube maintains the air pres-
sure.
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778
6-1. Specifications
GX460_OM_OM60J63U_(U)
Uniform Tire Quality Grading
This information has been prepared in accordance with regulations
issued by the National Highway Traffic Safety Administration of the U.S.
Department of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must conform 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 controlled 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 depends 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.
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6-1. Specifications
6
Vehicle specifications
GX460_OM_OM60J63U_(U)■
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 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) trac-
tion.
■Temperature A, B, C
The temperature grades are A (the highest), 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 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, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
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833
Alphabetical index
GX460_OM_OM60J63U_(U)
Personal lightsPersonal lights..................................... 525
Switch .......................................................527
Wattage ................................................. 769
Power steering Fluid .......................................................... 629
Power outlet ............................... 548, 550
Power windows.......................................105
Pre-Collision System...........................347
Radar cruise control ............................254
Radiator.....................................................626
Radio ........................................................... 421
RDS (Radio Date System).................423
Rear height control air suspension ..................................... 320
Rear seat Adjustment .................................................71
Folding down the second seatbacks ...................................... 73, 74
Folding down the third seats ...........76
Rear side marker lights
Replacing light bulbs ........................677
Wattage ................................................. 769
Rear step bumper ................................... 58
Rear turn signal lights Replacing light bulbs ........................677
Wattage ................................................. 769
Rear view mirror Compass ............................................... 582
Rear view monitor system ................ 285
Rear window defogger
*..................... 417
Rear window wiper and washer .....246 Replacing
Electronic key battery ......................652
Fuses........................................................ 655
Light bulbs ............................................ 670
Tires .......................................................... 726
Reporting safety defects for
U.S. owners ........................................... 810
Scuff lighting ...........................................525
Seat belts Adjusting the seat belt ........................90
Automatic Locking Retractor...........91
Child restraint system installation............................................ 155
Cleaning and maintaining the seat belts .................................... 602
Emergency Locking Retractor ..................................................91
How to wear your seat belt .............89
How your child should wear the seat belt .......................................... 92
Pre-collision seat belts .........................91
Pregnant women, proper seat belt use ......................... 92
Reminder light .....................................697
Seat belt extenders .............................. 93
Seat belt pretensioners ...................... 94
Seat heaters ............................................ 557
Seat position memory ............................ 82
Seat ventilator ........................................ 557
Seating capacity .................................... 369
R
S
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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Alphabetical index
GX460_OM_OM60J63U_(U)
Switch“ENGINE START STOP”
switch .....................................................183
Engine switch ........................................183
“2nd STRT” switch .............................. 192
Center differential lock/unlock
switch ....................................................327
“DAC” switch ...................................... 336
Emergency flasher Switch ............684
Fog light switch....................................237
Hazard light Switch ..........................684
Heated steering wheel switch ....555
Height control off switch ............... 320
Ignition switch........................................183
Light switches.......................................223
Power door lock switch.....................52
Power window switch...................... 105
“RSCA OFF” switch ............................ 141
Rear window defogger switch
*.................................................. 417
Transmission shift switch ................. 193
Window lock switch ......................... 105
Wipers and washer switch........... 240
Tachometer .............................................. 199
Tail lights Replacing light bulbs ...................... 680
Switch .......................................................223
Talk switch
*.............................................496
Telephones switch
*.............................496
Theft deterrent system Alarm ........................................................... 121
Engine immobilizer system ..............119 Tire inflation pressure ......................... 643
Tire information
Glossary ................................................ 780
Size............................................................ 776
Tire identification number.............. 775
Uniform Tire Quality Grading ....778
Tires Chains .......................................................371
Checking .............................................. 636
If you have a flat tire .......................... 726
Inflation pressure............................... 768
Information ............................................ 774
Pressure warning system.............. 636
Replacing ............................................... 726
Rotating tires ....................................... 636
Size........................................................... 768
Snow tires ................................................371
Spare tire ................................................ 726
Tire pressure warning system ................................................. 636
Tools ........................................................... 726
Total load capacity ...............................369
Towing Dinghy towing .....................................394
Emergency towing........................... 685
Trailer towing .......................................375
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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