
4897-3. Do-it-yourself maintenance
7
Maintenance and care
RC300h_EE(OM24740E)
■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 vehi cle, particularly around the wheels or wheel
housings. • If the tire inflation pressure is extr emely higher than the specified level. • 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 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 that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication deviceIf tire position information is not correctly 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 rapi dly for example when a tire has burst, the warning may not function.
■The initialization operation
●Make sure to carry out initialization af ter adjusting the tire inflation pressure. Also, make sure the tires are cold before carry ing out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the power switch off during initialization, it is not neces- sary to press the reset switch again as init ialization will restart automatically when the
power switch has been turned to ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust the tire inflation pressure to the specified leve l when the tires are cold, and conduct initial-
ization again.
■Warning performance of the tire pressure warning system
The warning of the tire pressure warning syst em will change in accordance with the con-
ditions under which it was initialized. For this reason, the system may give a warning even if the tire pressure does not reach a low enough level, or if the pressure is higher than the pressure that was adjusted to when the system was initialized.

624
RC300h_EE(OM24740E)
Alphabetical index
Alphabetical index
A/C ............................................................ 432
Air conditioning filter....................... 509
Automatic air conditioning
system .................................................. 432
Blower customization ..................... 439
S-FLOW mode.................................. 434
AAC disc ...................................................371
ABS (Anti-lock Brake System) .......304
Warning light ...................................... 538
Active Sound Control (ASC)........... 231
Adaptive Variable
Suspension System .......................... 305
Air conditioning filter ......................... 509
Air conditioning system ..................... 432
Air conditioning filter....................... 509
Automatic air conditioning
system .................................................. 432
Blower customization ..................... 439
S-FLOW mode.................................. 434
Airbag manual on-off system ............. 54
Airbags......................................................... 43
Airbag manual on-off system ......... 54
Airbag operating conditions........... 49
Airbag precautions for
your child............................................... 45
Correct driving posture .................... 36
Curtain shield airbag operating
conditions.............................................. 49
Curtain shield airbag
precautions............................................47
General airbag precautions ........... 45
Locations of airbags............................ 43
Modification and disposal of
airbags .................................................... 48
Side airbag operating
conditions ..............................................49
Side airbag precautions.................... 45
Side and curtain shield airbags
operating conditions ........................49
Side and curtain shield airbags
precautions .......................................... 45
SRS airbags ..............................................43
SRS warning light .............................. 538
Alarm ...........................................................102
Anchor brackets ...................................... 64
Antennas (smart entry &
start system) ........................................ 155
Anti-lock Brake System (ABS)....... 304
Warning light....................................... 538
Approach warning............................... 262
ASC (Active Sound Control) ...........231
Assist grips .............................................. 457
Audio input ...............................................351
Audio system.......................................... 344
Audio CD player................................. 371
Audio input ............................................. 351
AUX port/USB port ......................... 351
Bluetooth® audio ............................. 395
iPod ........................................................... 377
Optimal use............................................ 361
Portable music player ..................... 386
Radio........................................................ 369
Steering wheel audio switch........ 350
USB memory ........................................381
Automatic headlight leveling
system ................................................... 234
Warning light....................................... 539
Automatic High Beam ...................... 235
Automatic light control system ...... 232
A

625Alphabetical index
RC300h_EE(OM24740E)
AUX port .................................................. 351
Average fuel economy........................ 124
Average vehicle speed ....................... 124
Back-up light
Replacing light bulb.......................... 524
Wattage................................................. 605
Battery (12-volt battery)...................... 481
If the 12-volt battery is
discharged.........................................582
Preparing and checking
before winter .................................... 337
Warning light ....................................... 537
Battery (traction battery) ......................89
Blind Spot Monitor (BSM) ................ 319
Blower customization ......................... 439
Bluetooth®
Audio system .......................................395
Hands-free system
(for cellular phone)........................ 397
Brake
Fluid ......................................................... 603
Parking brake ......................................230
Warning light ....................................... 537
Brake assist .............................................304
Break-in tips ........................................... 207
Brightness control
Instrument panel li ght control......... 118
BSM (Blind Spot Monitor) ................. 319
Card key ................................................... 138
Care ................................................460, 464
Aluminum wheels................................ 461
Exterior ................................................... 460
Interior..................................................... 464
Seat belts ............................................... 465
Cargo hooks .......................................... 452
Caution label ............................................. 89
CD player .................................................. 371
Chains ....................................................... 338
Child restraint system............................ 60
Child seats definition .......................... 60
Child seats installation .............. 68, 75
Installing a CRS to the
passenger seat ................................... 65
Installing a CRS to the
rear seat ..................................................67
Installing CRS with ISOFIX
rigid anchors ....................................... 80
Installing CRS with seat belts .......... 72
Installing CRS with top strap .......... 82
Child safety ................................................ 59
12-volt battery
precautions .......................... 483, 585
Airbag precautions ............................. 45
Child restraint system ........................ 60
How your child should
wear the seat belt.............................. 40
Installing child restraints .................... 60
Moon roof precautions .................. 203
Power window lock switch ............ 196
Power window precautions........... 199
Removed electronic key
battery precautions......................... 513
Seat belt precautions........................... 42
B
C

631Alphabetical index
RC300h_EE(OM24740E)
Jack
Positioning the jack........................... 472
Vehicle-equipped jack ...................499
Jack handle .............................................. 499
Jam protection function
Front seats ............................................... 179
Moon roof .............................................. 201
Power window ......................................197
Keyless entry
Smart entry & start
system ......................................... 144, 150
Wireless remote control ....... 144, 150
Keys ............................................................. 138
Battery-Saving Function ..................157
Electronic key ....................................... 138
If the electronic key does not
operate properly ............................578
Key number plate ............................... 138
Keyless entry ............................... 144, 150
Mechanical key.....................................139
Power switch .........................................215
Replacing the battery.......................... 511
Warning buzzer ...................................145
Wireless remote control ................. 138
Knee airbags.............................................. 43
Lane Departure Alert (LDA) .......... 273
Language
(multi-information display) .............. 126
LDA (Lane Departure Alert) .......... 273
Lever
Auxiliary catch lever........................... 471
Hood lock release lever .................. 471
Shift lever ................................................ 222
Tilt and telescopic steering
lock release lever .............................189
Turn signal lever..................................229
Wiper lever ............................................ 241
Lexus Display Audio controller...... 346
Lexus Display Audio system............ 344
Lexus parking assist monitor ........... 286
Lexus parking assist-sensor ............. 279
License plate lights .............................. 232
Light switch............................................232
Replacing light bulbs ....................... 525
Light bulbs
Replacing............................................... 520
Wattage .................................................605
Lights
Automatic High Beam
system.................................................. 235
Fog light switch................................... 239
Follow me home system................ 233
Headlight switch .................................232
Illuminated entry system .................447
Interior lights .........................................447
Interior lights list ................................. 446
Personal lights..................................... 448
Replacing light bulbs ....................... 520
Trunk light ............................................... 152
Turn signal lever..................................229
J
K
L

640
RC300h_EE(OM24740E)
GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 471 P. 150 P. 249
Hood lock release leverTire inflation pressure
P. 471P. 604
Fuel tank capacity (Reference) 66 L (17.4 gal., 14.5 Imp. gal.)
Fuel type
EU area: Unleaded gasoline conforming to European
standard EN228 only Except EU area: Unleaded gasoline onlyP. 598, 606
Cold tire inflation
pressure P. 604
Engine oil capacity (Drain and refill — reference)
L (qt., Imp. qt.) With filter 4.5(4.8, 4.0)Without filter 4.1 (4.3, 3.6)
Engine oil type
“Toyota Genuine Motor Oil” or equivalent
Oil grade: 0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy- Conserving” or SN “Resource-Conserving”; or ILSACmultigrade engine oil
15W-40: API grade SL, SM or SN multigrade engine oilP. 599