Page 546 of 586

5459-2. Customization
9
Vehicle specifications
IS350/250_U (OM53C50U)
■Vehicle customization
●When the smart access system with push-button start is off, the entry unlock function
cannot be customized.
●When the doors remain closed after unlocking the doors and the timer activated auto-
matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational signal (Emergency flashers) function set-
tings.
■When customizing using the Remote Touch or Lexus Display Audio controller
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P. Also,
to prevent battery discharge, leave the engine running while customizing the features.
CAUTION
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.
Page 568 of 586

567Alphabetical index
IS350/250_U (OM53C50U)
Child safety ................................................ 53Airbag precautions .............................. 39
Battery precautions ...............421, 505
Child restraint system ......................... 54
How your child should wear the seat belt .......................................... 32
Installing child restraints.................... 58
Moon roof precautions.................... 144
Power window lock switch ............ 138
Power window precautions .......... 140
Rear door child-protectors ........... 106
Removed electronic key battery precautions.............. 440
Seat belt extender
precautions ...........................................35
Seat belt precautions .......................... 57
Seat heater precautions................. 366
Trunk precautions................................. 112
Child-protectors.................................... 106 Cleaning ....................................... 396, 399
Aluminum wheels .............................. 397
Exterior ...................................................396
Interior ..................................................... 399
Seat belts............................................... 400
Clock .......................................................... 377
Coat hooks ...............................................381
Compass ................................................. 387
Condenser ................................................418
Console box ............................................. 371
Cooling system ....................................... 417 Engine overheating ......................... 506
Cruise control Cruise control ....................................... 192
Dynamic radar crui se control .......196
Cup holders.............................................372
Current fuel consumption ....................87
Curtain shield airbags ............................ 37
Customizable features .......................537
Page 582 of 586

581Alphabetical index
IS350/250_U (OM53C50U)
Tools........................................................... 487
Top tether strap........................................ 65
Total load capacity .................................156
TowingDinghy towing ...................................... 158
Emergency towing........................... 458
Towing eyelet........................................ 461
Trailer towing ........................................ 157
TRAC (Traction Control) ................. 240
Transmission .............................................164 Automatic transmission ................... 164
Driving mode select switch .......... 237
If the shift lever cannot be shifted from P .................................. 498
M mode ....................................................167
Paddle shift switches ......................... 166
Trip meters ...................................................81 Trunk ...........................................................109
Internal trunk release lever ................ 111
Luggage security system.................. 110
Smart access system
with push-button start................... 109
Trunk features...................................... 374
Trunk handle ........................................... 110
Trunk light................................................... 111
Trunk opener main switch ............... 110
Trunk opener switch ......................... 109
Wireless remote control................. 109
Trunk light..................................................... 111
Wattage ...................................................521
Turn signal lights ..................................... 170
Replacing light bulbs ................ 446, 448, 449, 452
Turn signal lever ...................................170
Wattage ...................................................521
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.