tires Lexus GX460 2015 Alphabetical index /

533
GX460_OM_OM60L72U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you have a flat tire
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Turn off the rear height control air suspension (if equipped). (P. 3 3 1 )
●Stop the engine.
●Turn on the emergency flashers. ( P. 5 0 2 )
Your vehicle is equipped with a spare ti re. The flat tire can be replaced with
the spare tire.
For details about tires: P. 4 6 8
CAUTION
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat ti re can damage the tire and the wheel beyond
repair, which could result in an accident.
Before jacking up the vehicle

5357-2. Steps to take in an emergency
GX460_OM_OM60L72U_(U)
7
When trouble arises
CAUTION
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off the jack, leading
to death or serious injury.
●Do not use the tire jack for any purpose ot her than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires on
this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported by the jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Be sure to turn off the height control and stop the engine.
Take particular care when lowering the ve hicle to ensure that no one working on or
near the vehicle will be injured.
■Using the jack handle
Tighten all the jack handle bolts securely using a Phillips-head screwdriver, to prevent
the extension parts from coming apart unexpectedly.

5397-2. Steps to take in an emergency
GX460_OM_OM60L72U_(U)
7
When trouble arises
Chock the tires.
Pry off the wheel ornament, using
the beveled end of the wheel nut
wrench as shown.
To protect the wheel ornament, place a
rag between the wheel nut wrench and
the wheel ornament.
Slightly loosen the wheel nuts (one
turn).
Replacing a flat tire
1
Flat tireWheel chock position
FrontLeft-hand sideBehind the rear right-hand side tire
Right-hand sideBehind the rear left-hand side tire
RearLeft-hand sideIn front of the front right-hand side tire
Right-hand sideIn front of the front left-hand side tire
2
3

558
GX460_OM_OM60L72U_(U)7-2. Steps to take in an emergency
If the vehicle becomes stuck
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 under the tires to help provide
traction.
Restart the engine.
Lock the center differential. (
P. 3 3 7 )
Shift the shift lever to the D or R position and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Turn off TRAC or Active TRAC/VSC/Trailer Sway Control if these functions are ham-
pering your attempts to free the vehicle. ( P. 3 4 7 )
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow:
Press to turn off TRAC or Active TRAC/VSC/
Trailer Sway Control.
1
2
3
4
5
6

570
GX460_OM_OM60L72U_(U)8-1. Specifications
Steering
Free playLess than 1.18 in. (30 mm)
Power steering fluid typeAutomatic transmission fluid DEXRON® II or III
Tires and wheels
Ti r e s i z eP265/60R18 109H
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Rear tire
32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Spare tire
32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Wheel size18
 7 1 /2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

575
GX460_OM_OM60L72U_(U)8-1. Specifications
8
Vehicle specifications
Tire information
Ti r e s i z e
( P. 5 7 7 )
DOT and Tire Identification Number (TIN) ( P. 5 76 )
Location of treadwear indicators ( P. 4 6 8 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel co rds. 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. 5 8 1 )
Maximum cold tire inflation pressure ( P. 5 8 1 )
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. 4 7 1 )
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer
tire.
Ty p i c a l t i r e s y m b o l s
1
2
3
4
5
6
7
8
9
10

GX460_OM_OM60L72U_(U)
5798-1. Specifications
8
Vehicle specifications
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospective purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any questions 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 grad es can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Tr e a d w e a r
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditions 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 actual conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and differences in road characteristics and climate.
■Tr a c t i o n A A , 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 we t pavement as measured under controlled
conditions on specified government te st 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
GX460_OM_OM60L72U_(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 material 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, underinflation, or excessiv e loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.

625Alphabetical index
GX460_OM_OM60L72U_(U)
Power outlet ............................................. 417
Power windows .......................................146Jam protection function ....................147
Operation ............................................... 146
Window lock switch.......................... 146
Pre-Collision System (PCS) ............ 362 Function ..................................................362
PCS OFF switch ................................363
Warning light ........................................ 512
Radiator ......................................................461
Radio
*
Rear seat ................................................... 120 Adjustment ............................................. 120
Rear turn signal lights ...........................194 Replacing light bulbs ....................... 495
Turn signal lever .................................. 194
Wattage ................................................... 571
Rear view mirror Inside rear view mirror ....................... 141
Outside rear view mirrors .............. 143
Rear view monitor system .................247
Rear window defogger ......................385
Rear window wiper................................. 211
Refueling .................................................... 214 Capacity ................................................ 564
Fuel types .................................... 214, 564
Opening the fuel tank cap.............. 216 Replacing
Electronic key battery .....................483
Fuses ........................................................485
Light bulbs.............................................490
Tires .......................................................... 533
Wireless remote control battery ..................................................483
Reporting safety defects for U.S. owners .................................. 600
Reset the maintenance data ............ 445
Safety connect........................................432
Seat belts .................................................... 28 Adjusting the seat belt........................ 29
Automatic Locking Retractor ........ 30
Child restraint system installation ............................................. 57
Cleaning and maintaining the seat belt ....................................... 442
Emergency Locking Retractor................................................ 30
How to wear your seat belt............. 28
How your child should wear the seat belt .......................................... 30
Pregnant women, proper seat belt use........................... 31
Reminder light and buzzer .............513
Seat belt pretensioners...................... 29
Seat belt extender ................................ 30
SRS warning light ................................. 511
R
S
*:For vehicles with a navigation system or a multimedia system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

626Alphabetical index
GX460_OM_OM60L72U_(U)
Seat heaters ............................................ 394
Seat ventilators ...................................... 395
Seat position memory............................ 131
Seats....................................................118, 120Adjustment .................................... 118, 120
Adjustment precau tions ......... 119, 130
Child seats/child restraint system installation.............................. 57
Cleaning .................................................. 441
Driving position memory .................. 131
Head restraint ....................................... 136
Properly sitting in the seat ................ 26
Seat position memory......................... 131
Ventilators ............................................ 395
Sensor Automatic headlight system .......... 198
Inside rear view mirror ......................142
Intuitive parking assist-sensor .................................... 238
Rain-sensing windshield wipers .................................................. 209
Service reminder indicators ................74
Shift lever Automatic transmission ................... 190
If the shift lever cannot be shifted from P .................................. 548
Shift lock system.................................... 548
Shopping bag hooks ........................... 407
Side airbags ............................................... 34
Side mirrors ..............................................143 Adjusting and folding........................ 143
Blind Spot Monitor............................. 351
Side turn signal lights ............................194 Replacing light bulbs ....................... 498
Turn signal lever .................................. 194 Smart access system with
push-button start.................................... 111 Antenna location..................................... 111
Starting the engine ............................. 185
Snow tires .................................................373
Spare tire ................................................. 533 Inflation pressure................................ 570
Storage location ................................. 534
Spark plug ............................................... 566
Specifications......................................... 562
Speedometer ............................................. 79
Steering lock Column lock release ........................ 188
Steering wheel ........................................ 139 Adjustment..............................................139
Audio switches
*
Heated steering wheel ................... 393
Steering wheel position memory...................................................131
Stop/tail lights Replacing light bulbs .......................498
Storage feature ..................................... 399
Stuck If the vehicle becomes stuck....... 558
Sun shade Roof ........................................................... 150
Sun visors................................................... 415
Switch “2nd START” button ........................... 191
AVS switch ........................................... 335
BSM (Blind Spot Monitor) switch .....................................................351
Center differential lock/ unlock switch.................................... 337
Crawl Control switch......................340
Cruise control switch ..............218, 221
“DAC” switch ...................................... 343