ES300h_OM_OM33C75U_(U)
4697-3. Do-it-yourself maintenance
7
Maintenance and care
■Tire types
●Summer tires
Summer tires are high-speed performance tires best suited to highway driving under
dry conditions. Since summer tires do not have the same traction performance as
snow tires, summer tires are inadequate for driving on snow-covered or icy roads. For
driving on snow-covered roads or icy roads, the use of snow tires is recommended.
When installing snow tires, be sure to replace all four tires.
●All season tires
All season tires are designed to provide better traction in snow and to be adequate for
driving in most winter conditions as well as for use year-round. All season tires, how-
ever, do not have adequate traction performance compared with snow tires in heavy
or loose snow. Also, all season tires fall short in acceleration and handling perfor-
mance compared with summer tires in highway driving.
●Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If
you need snow tires, select tires of the same size, construction and load capacity as the
originally installed tires. Since your vehicle has radial tires as original equipment, make
sure your snow tires also have radial cons truction. Do not install studded tires without
first checking local regulations for possible restrictions. Snow tires should be installed
on all wheels. ( →P. 2 8 4 )
■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.
• 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.
●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 that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●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.
591Alphabetical index
ES300h_OM_OM33C75U_(U)
Audio system*....................................... 290
Audio input............................................299
AUX port ...............................................299
Bluetooth
® audio ............................. 348
CD player .............................................. 322
iPod ...........................................................329
MP3/WMA disc ............................... 322
Optimal use ......................................... 309
Portable music player ...................... 337
Radio ......................................................... 316
Setup menu .......................................... 302
Steering wheel audio switches ...............................................296
USB memory .......................................333
Automatic air conditioning system ....................................................388
Automatic headlight leveling system ..................................................... 184
Automatic High Beam ........................ 185
Automatic light control system ..................................................... 182
AUX port
*.............................................. 299
Auxiliary box .......................................... 406 Back-up lights
Replacing light bulbs ....................... 494
Wattage .................................................548
Battery (12-volt battery) ...................... 461 If the 12-volt battery
is discharged .................................... 529
Preparing and checking before
winter.................................................... 284
Battery (traction battery) ....................... 71
Bluetooth
®*
Audio system .......................................338
Hands-free system (for cellular phone) ....................... 349
Brake Fluid .......................................................... 459
Parking brake ......................................... 181
Warning light ...................................... 505
Brake assist .............................................. 276
Break-in tips ............................................. 156
Brightness control Instrument panel light control ........ 87
BSM (Blind Spot Monitor) ............... 268
B
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.
596Alphabetical index
ES300h_OM_OM33C75U_(U)
Hands-free system (for cellular phone)
*........................ 349
Head restraints ....................................... 135
Headlights Adaptive Front-lighting System
(AFS) ..................................................... 183
Light switch ............................................ 182
Replacing light bulbs.........................................488, 495
Wattage ................................................. 548
Heaters
Air conditioning system ................................................. 388
Heated steering wheel ................... 399
Seat heaters ......................................... 399
Outside rear view mirrors .............392
High-voltage components .................... 71
Hill-start assist control ........................ 276
Hood .......................................................... 449
Hooks Cargo hooks ........................................407
Coat hooks ............................................ 414
Grocery bag hooks..........................407
Retaining hooks (floor mat) .............28
Horn .............................................................139
Hybrid battery (traction battery) .................................... 71
Hybrid battery (traction battery) air vents .................72 Hybrid system............................................ 67
Emergency shut off system .............. 72
Energy monitor/consumption screen ..................................................... 96
EV drive mode ..................................... 173
High voltage components ................. 71
Hybrid System Indicator ...................88
Hybrid system precautions ............... 71
Hybrid vehicle driving tips ............ 282
If the hybrid system will not start ............................................... 525
Overheating.........................................533
“Power” (ignition) switch ................ 168
Starting the hybrid system.............. 168
Vehicle proximity notification system ..................................................... 68
Hybrid System Indicator ...................... 88
Hybrid transmission .............................. 175 If the shift lever cannot be shifted from P .....................................178
H
604Alphabetical index
ES300h_OM_OM33C75U_(U)
Rear sunshade switch ........................412
Rear window and outside rear view mirror defoggers
switch.................................................... 392
Seat heater switches........................ 399
Seat ventilator switches ................. 399
“SOS” button........................................426
Talk switch
*......................................... 359
Telephone switches
*...................... 359
Tilt and telescopic
steering control switch ................. 138
Tire pressure warning reset
switch.................................................... 467
Trunk closer switch .............................. 115
Trunk opener switch ........................... 114
Trunk opener main switch................ 115
Vehicle-to-vehicle distance button ................................................... 226
VSC OFF switch ............................... 277
Window lock switch .......................... 145
Windshield wipers and washer switch .......................... 190 Tachometer ............................................... 86
Tail lights
Light switch.............................................182
Replacing light bulbs ....................... 495
Talk switch
*............................................ 359
Telephone switches
*.......................... 359
Theft deterrent system
Alarm .......................................................... 78
Immobilizer system...............................76
Tire inflation pressure Maintenance data.............................. 547
Tire inflation pressure display function................................................... 92
Warning light ....................................... 507
Tire information .................................... 552
Glossary................................................ 558
Size ...........................................................555
Tire identification number .............554
Uniform Tire Quality Grading ..............................................556
Tire pressure warning system
Function .................................................. 466
Initializing ............................................... 466
Installing tire pressure warning valves and transmitters................ 466
Registering ID codes ....................... 467
Tire pressure warning reset switch ................................................... 467
Warning light ....................................... 507
T