Page 464 of 622
464
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
Tires
New tread
Treadwear indicator
Wo r n t r e a d
The location of treadwear indicators is
shown by the “TWI” or “ ” marks, etc.,
molded on the sidewall of each tire.
Check spare tire condition and pressure
if not rotated.
Rotate the tires in the order shown.
To equalize tire wear and extend tire life,
Lexus recommends that tire rotation is
carried out at the same interval as tire
inspection.
Replace or rotate tires in accordance
with maintenance schedules and tread-
wear.
Checking tires
1
2
3
Tire rotation
Front
Page 468 of 622

468
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■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.
• Lock nuts are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If the spare tire is in a location subject to poor radio wave signal reception.
• If a large metallic object wh ich 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.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility th at generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
Page 511 of 622

5117-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
7
When trouble arises
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on du e to natural causes such as natural air leaks
or tire inflation pressure changes caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The tire pressure warning light will turn on if the tire inflation pressure of the spare tire is
low. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
P. 4 6 8
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 5 7 8 )
Page 528 of 622
5287-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
Jack
To o l b o x
Spare tire
Location of the spare tire, jack and tools
1
2
3
Page 618 of 622

616Alphabetical index
GX460_OM_OM60K80U_(U)
Seat heaters ............................................ 390
Seat ventilators ........................................391
Seat position memory.......................... 128
Seats...................................................... 115, 117Adjustment .......................................115, 117
Adjustment precautions .......... 116, 127
Child seats/child restraint system installation..............................56
Cleaning ................................................. 437
Driving position memory ................ 128
Head restraint ........................................132
Properly sitting in the seat ................ 26
Seat position memory....................... 128
Ventilators .............................................. 391
Sensor Automatic headlight system .......... 194
Inside rear view mirror ..................... 138
Intuitive parking assist-sensor ..................................... 234
Rain-sensing windshield wipers .................................................. 205
Service reminder indicators ................72
Shift lever Automatic transmission ................... 186
If the shift lever cannot be shifted from P ...................................542
Shift lock system.................................... 542
Shopping bag hooks ........................... 403
Side airbags ............................................... 34
Side mirrors ..............................................139 Adjusting and folding........................ 139
Blind Spot Monitor............................ 347
Side turn signal lights ........................... 190 Replacing light bulbs ......................... 491
Turn signal lever .................................. 190 Smart access system with
push-button start................................ 108 Antenna location................................. 108
Starting the engine ............................... 181
Snow tires ................................................ 368
Spare tire ..................................................527 Inflation pressure.................................. 471
Storage location .................................528
Spark plug ............................................... 558
Specifications......................................... 554
Speedometer ............................................. 77
Steering lock Column lock release .........................184
Steering wheel ........................................ 135 Adjustment..............................................135
Audio switches
*
Heated steering wheel ...................389
Steering wheel position memory.................................................128
Stop/tail lights Wattage .................................................563
Storage feature ..................................... 395
Stuck If the vehicle becomes stuck......... 551
Sun shade Roof ............................................................146
Sun visors.....................................................411
Switch “2nd START” button ..........................187
AVS switch ............................................. 331
BSM (Blind spot monitor) switch ................................................... 347
Center differential lock/ unlock switch.................................... 333
Crawl Control switch...................... 336
Cruise control switch .............. 214, 217
“DAC” switch ...................................... 339