
4156-2. Using the air conditioning system
6
Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■When the outside temperature falls to nearly 32 °F (0 °C)
The dehumidification function may not operate even when   is pressed or “A/C” is
selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and  outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning  system be set to outside air mode prior
to turning the vehicle off.
• The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system  is started in automatic mode.
■Air conditioning filter
→P. 498
■Customization
Settings (e.g. A/C Auto switch  operation) can be changed. 
(Customizable features:  →P. 617)
WARNING
■To prevent the windshield from fogging up 
●Do not use   during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield  to fog up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
●Do not touch the glass at lower part of the windshield or to  the side of the front pillars
when the windshield wiper de-icer is on.
NOTICE
■To prevent battery discharge
Do not leave the air conditioni ng system on longer than necessary when the engine is
stopped.
●Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging. 

4336-5. Using the other interior features
6
Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Programming HomeLink®
Steps   through   must be performed within 60 seconds, otherwise the
indicator light will stop flashing and pr ogramming will not be able to be com-
pleted.
Press and release the HomeLink
® button you want to program and check
that the HomeLink® indicator light flashes (orange).
Point the remote control transmit-
ter for the device at the rear view
mirror, 1 to 3 in. (25 to 75 mm)
from the HomeLink
® buttons.
Keep the HomeLink® indicator light
in view while programming.
Program a device.
Programming a device other than an  entry gate (for U.S.A. owners)
Press and hold the handheld tran smitter button until the HomeLink
® indi-
cator light changes from slowly flashi ng orange to rapidly flashing green
(rolling code) or continuously lit green  (fixed code), then release the but-
ton.
Programming an entry gate (for U. S.A. owners)/Programming a device
in the Canadian market
Press and release the remote control transm itter button at 2 second inter-
vals, repeatedly, until the HomeLink
® indicator light changes from slowly
flashing (orange) to rapidly flashing  (green) (rolling code) or continuously
lit (green) (fixed code).
Test the HomeLink
® operation by pressing the newly programmed button
and observing the indicator light:
●Indicator light illuminates: Programming  of a fixed code device has com-
pleted. The garage door or other de vice should operate when a Home-
Link
® button is pressed and released.
13
1
2
3
4 

4396-5. Using the other interior features
6
Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
To turn the compass on or off, press and
hold the button for 3 seconds.
Compass∗
∗
: If equipped
The compass on the inside rear view mirror indicates the direction in which
the vehicle is heading.
Operation
Displays and directions
DisplayDirection
NNorth
NENortheast
EEast
SESoutheast
SSouth
SWSouthwest
WWest
NWNorthwest 

4416-5. Using the other interior features
6
Interior features
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Circling calibration
Stop the vehicle in a place where it is safe to drive in a circle.
Press and hold the button for 9
seconds.
“C” appears on the compass display.
Drive the vehicle at 5 mph (8
km/h) or less in a circle until a
direction is displayed.
If there is not enough space to drive
in a circle, drive around the block
until a direction is displayed.
■Conditions unfavorable  to correct operation
The compass may not show the correct di rection in the following conditions:
●The vehicle is stopped immediately after turning.
●The vehicle is on an inclined surface.
●The vehicle is in a place where the earth's ma gnetic field is subject to interference by
artificial magnetic fields (underground  car park/parking lot, under a steel tower,
between buildings, roof car park/parking lot,  near an intersection, near a large vehicle,
etc.).
●The vehicle has become magnetized.
(There is a magnet or metal object  near the inside rear view mirror.)
●The battery has been disconnected.
●A door is open.
1
2
3
WARNING
■While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.
■When doing the circling calibration
Secure a wide space, and watch out for people  and vehicles in the vicinity. Do not vio-
late any local traffic rules while  performing circling calibration. 

4426-5. Using the other interior features
IS350 AWD/IS350/IS300  AWD/IS300_U(OM53E34U)
NOTICE
■To avoid compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror. 
Doing this may cause the compass sensor to malfunction.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth's mag-
netic field is subject to interferen ce by artificial magnetic fields.
●During calibration, do not operate electric  systems (moon roof, power windows, etc.)
as they may interfere with the calibration. 

642Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Daytime running light system ............196
Defogger
Outside rear view mirrors ...............412
Rear window ..........................................412
Windshield ..............................................412
Differential Front differential ................................... 591
Rear differential ...................................592
Dimension ............................................... 584
Dinghy towing.......................................... 177
Display Drive information .................................. 92
Dynamic radar cruise control......239
LDA (Lane Departure Alert with steering control) .......236
Multi-information display ..................86
Warning message .............................529
Do-it-yourself maintenance ............. 466
Door courtesy lights Location ................................................... 418
Wattage ................................................. 595 Doors ........................................................... 116
Automatic door locking and unlocking system ..................... 119
Door lock.................................................. 118
Open door warning buzzer ............ 117
Open door warning light .............. 524
Outside rear view mirrors ............... 151
Rear door child-protector ............... 119
Side windows ........................................154
Drive information .....................................92
Drive-Start Control..................... 165, 187
Driver’s and front passenger’s  seat belt reminder light....................524
Driver’s seat position memory.......... 139
Driving ........................................................ 164 Break-in tips ...........................................166
Correct driving posture .................... 28
Driving mode select switch ..........288
Procedures .............................................164
Winter drive tips ................................ 297
Dynamic radar cruise control ......... 239
D 

645Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Hands-free system 
(for cellular phone) ........................... 363
HD Radio
® system .............................. 330
Head restraints ........................................144
Headlights .................................................194 AFS (Adaptive Front-lighting System) ................................................. 195
Light switch ............................................ 194
Replacing light bulbs ....................... 509
Headlights cleaner............................... 202
Heaters Air conditioning system ..................407
Heated steering wheel ..................... 416
Outside rear view mirrors ...............412
Seat heaters ............................................417
Hill-start assist control ........................ 292
Hood .......................................................... 468 Open ....................................................... 468
Hooks Cargo hooks ........................................425
Coat hooks ............................................ 431
Retaining hooks (floor mat) ............. 26
Horn ............................................................ 148 I/M test ..................................................... 465
Identification
Engine .................................................... 586
Vehicle ................................................... 585
Ignition switch (engine switch) ......... 178
Illuminated entry system ..................... 419
Immobilizer system ................................ 68
Indicators .....................................................78
Initialization Engine oil maintenance data ....... 475
Maintenance ........................................460
Moon roof .............................................. 160
Multi-information display.................. 95
Power windows................................... 155
Tire pressure warning system ...............................485
Initiators (tire pressure  warning system) .................................. 491
Inside door handle lights ..................... 418
Inside rear view mirror......................... 149
Instrument panel light control ............ 84
Intercooler ...............................................478
Intercooler coolant............................... 476 Capacity................................................ 590
Checking ............................................... 476
Preparing and checking before winter .................................... 297
Interior lights ............................................ 419 Wattage .................................................595
Intuitive parking assist .......................... 251
HI 

647Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
License plate lights.................................194
Light switch ............................................ 194
Replacing light bulbs ....................... 509
Light bulbs Replacing .............................................. 505
Wattage ................................................. 595
Lights Headlight switch.................................. 194
Illuminated entry system .................457
Interior light ............................................ 419
Interior lights list ................................... 418
Personal lights ...................................... 419
Replacing light bulbs ....................... 505
Trunk light ................................................124
Turn signal lever .................................. 190
Vanity lights .......................................... 427
Wattage ................................................. 595
Lock steering column .......................... 180
Low profile tire....................................... 486
Luggage security system.....................123 Maintenance
Do-it-yourself maintenance ......... 466
General maintenance ..................... 462
Maintenance data..............................584
Maintenance requirements .......... 459
Malfunction indicator lamp ...............522
Master warning light ............................524
Meter Changing the display ......................... 84
Indicators .................................................. 78
Instrument panel light control ........ 84
Meters ..........................................................81
Multi-information display.................. 86
Warning lights......................................... 77
Micro dust and pollen filter ..................411
Mirrors Inside rear view mirror......................149
Outside rear view mirror defoggers............................................. 412
Outside rear view mirrors ............... 151
Vanity mirrors ......................................427
MMS (Multimedia messaging  service).................................................... 371
Mobile Assistant ...................................... 311M
*: For vehicles with a naviga tion system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.