Page 556 of 708
5566-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
Check if the treadwear indicators are showing on the tires. Also check the
tires for uneven wear, such as excessive wear on one side of the tread.
Check the spare tire condition and pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.
Tires
Replace or rotate tires in accord ance with maintenance schedules and
treadwear.
Checking tires
1
2
3
Page 561 of 708

5616-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
(vehicles with the tire pressure warning system)
●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.
• 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 extr emely 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 which can interfere with signal reception is put in the
trunk.
• If tires not equipped with tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not regis-
tered 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,
airport or other facility th at generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication device
If tire position information is not correctly displayed due to the radio wave condi-
tions, the display may be corrected by driving and changing the radio wave condi-
tions.
●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 619 of 708
6197-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
Location of the spare tire, jack and tools
Parking brake release tool
Jack handle
Wheel nut wrench
Jack
Tools
Screwdriver
Spare tire
Towing eyelet
1
2
3
4
5
6
7
8
Page 702 of 708

702Alphabetical index
LS460/LS460L_GE (OM50G06E)
Sensor
Adaptive High-beam System
(AHS)................................................... 297
Automatic headlight system........ 288
Camera sensors................................... 371
Driver monitor sensor ....................... 371
Inside rear view mirror...................... 231
Intrusion sensor and tilt sensor ...... 115
Lexus night view................................ 398
LKA (Lane-Keeping Assist) ......... 344
Radar sensor ... 322, 338, 370, 386
Rain-sensing windshield
wipers...................................................302
Shift lever.......................................264, 269
Automatic transmission ......264, 269
If the shift lever cannot
be shifted from P ................ 267, 275
Shift lever light........................................ 447
Shift lock system ......................... 267, 275
Shopping bag hooks............................ 465
Side airbags................................................ 52
Side mirrors............................................. 232
Adjusting and folding....................... 232
BSM (Blind Spot Monitor) ............ 381
Linked mirror function when
reversing ............................................. 234
Mirror position memory.................. 218
Side turn signal lights .......................... 278
Replacing light bulbs .......................590
Turn signal lever................................. 278
Smart entry & start system .................153
Antenna location ................................. 156
Entry functions ...................................... 153
Starting the engine............................ 259
Snow mode .................................. 266, 274
Snow tires ................................................ 402
Spare tire .................................................. 618
Inflation pressure ...................660, 662
Storage location................................... 619
Spark plug ............................................... 656
Specifications ......................................... 648
Speedometer ...........................................125
Sport mode ............................................. 354
Steering lock ............................................261
Column lock release ......................... 261
Steering wheel....................................... 228
Adjustment ........................................... 228
Heated steering wheel ................... 476
Power easy access system............. 201
Steering wheel position
memory ................................................ 218
Stop lights
Emergency brake signal.................. 361
Replacing light bulbs .......................590
Storage feature .......................................451