Page 523 of 573

5229-1. Specifications
IS350/250_U (OM53758U)
CT
A pneumatic tire with an inverted flange tire and rim
system in which the rim is designed with rim flanges
pointed radially inward and the tire is designed to fit on
the underside of the rim in a manner that encloses the
rim flanges inside the air cavity of the tire
Extra load tireA tire designed to operate at higher loads and at higher
inflation pressures than the corresponding standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the inside surface of a tubeless tire
that contains the inflating medium within the tire
Innerliner separationThe parting of the innerliner from cord material in the
carcass
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or
model name molding that is higher or deeper than
the same molding on the ot her sidewall of the tire,
or
(b) The outward facing sidewall of an asymmetrical tire that has a particular side that must always face out-
ward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipurpose
passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a given
inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible infla-
tion pressureThe maximum cold inflation pressure to which a tire may
be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or inner-
liner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Tire related termMeaning
Page 527 of 573

5269-2. Customization
IS350/250_U (OM53758U)
Some function settings are changed simultaneously with other functions being
customized. Contact your Lexus dealer for further details. Settings that can be changed using the Remote Touch or Lexus Display Audio
controller
Settings that can be changed using the meter control switches
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
■Gauges, meters and multi-information display ( P. 76, 81, 86)
Customizable features
1
2
3
Function*1Default settingCustomized setting
LanguageEnglishFrenchOO—Spanish
Units*2miles (MPG US)
km (km/L)
—O—km (L/100 km)
miles (MPG Impe-
rial)
Maintenance system initial-
izationOFFON—O—
Eco Driving Indicator LightON (Self-lighting)OFF—O—
switch settings *3Drive information 1Desired status screen*4—O—
Drive information 1
Current fuel econ-
omy
*5—O—Average fuel econ-omy (after reset)
Drive information 2
Distance (range)
*5—O—Average speed (after reset)
Po p - u p d i s p l a yONOFF—O—
Accent color*3BlueRedOO—
Needle*6BlueRed—O—White
Speed indicator*6OFF30 to 100 mph (50
to 160 km/h)—O—
123
Page 531 of 573

5309-2. Customization
IS350/250_U (OM53758U)
■Tu r n s i g n a l l e v e r ( P. 1 7 0 )
*1: After flashing the turn signal lights when turn ing left or right while this function is off
and the turn signal lever is moved to the fi rst position in the direction of the flashing
light, the turn signal lights can be selected to be flashing or off.
*2: The turn signal lights keep flashing if the tu rn signal lever is moved to the first position
in the direction of flashing light.
*3: The turn signal lights will be off if the turn signal lever is moved to the first position in
the direction of flashing light.
■Automatic light control system ( P. 1 7 3 )
FunctionDefault settingCustomized setting
The number of times the
turn signal lights flash auto-
matically when the turn sig-
nal lever is moved to the first
position during a lane
change
*1
3
5
——O7
Off*2
Off*3
123
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before head-
lights automatically turn off
after doors are closed
30 seconds
Off
O—O60 seconds
90 seconds
Welcome light illumination
controlOnOff——O
123
Page 532 of 573
5319-2. Customization
9
Vehicle specifications
IS350/250_U (OM53758U)
■Lights (P. 1 7 3 )
*: U.S.A. only
■Intuitive parking assist*1 ( P. 2 1 4 )
*1: If equipped
*2: When intuitive parking assist is operating.
■Automatic air conditioning system ( P. 3 4 6 )
FunctionDefault settingCustomized setting
Daytime running light sys-
tem*OnOffO—O
123
FunctionDefault settingCustomized setting
Detection distance of the
front center sensorFarNearO—O
Detection distance of the
rear center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting*2All sensors dis-
playedDisplay offO—O
123
FunctionDefault settingCustomized setting
A/C Auto switch operationOnOffO—O
123
Page 533 of 573
5329-2. Customization
IS350/250_U (OM53758U)
■Illumination ( P. 3 5 6 )
■Seat belt reminder ( P. 4 5 6 )
FunctionDefault settingCustomized setting
Time elapsed before the
interior lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
30 seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff——O
Inside door handle lightsOnOff——O
Time elapsed before the
outer foot lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
30 seconds
Operation of the outer foot
lights when you approach
the vehicle with the elec-
tronic key on your person
OnOff——O
Operation of the outer foot
lights when the doors are
unlocked with the power
door lock switch
OnOff——O
123
FunctionDefault settingCustomized setting
Vehicle speed linked seat
belt reminder buzzerOnOff——O
123
Page 551 of 573
550What to do if... (Troubleshooting)
IS350/250_U (OM53758U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 4 5 6 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 7 2 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 4 5 5 , 4 6 1 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 7 1 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 4 6 1 )
●When a warning light turns on or a warning message is displayed, refer to
P. 4 5 5 , 4 6 1 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
Page 553 of 573

552
IS350/250_U (OM53758U)Alphabetical index
Alphabetical index
A/C ............................................................ 346
Air conditioning filter........................425
Automatic air conditioning system ..................................................346
AAC disc ................................................. 287
ABS (Anti-lock Brake System)....... 234 Function .................................................. 234
Warning light ...................................... 455
Accent color.............................................. 88
Adaptive Variable Suspension system ........................... 235
Air conditioning filter .......................... 425
Air conditioning system ..................... 346 Air conditioning filter........................425
Automatic air conditioning system ..................................................346 Airbags .........................................................36
Airbag operating conditions .......... 44
Airbag precautions for your child ....................................... 39
Correct driving posture .................... 28
Curtain shield airbag operating conditions ....................... 44
Curtain shield airbag precautions ............................................ 41
Front passenger occupant classification system..........................47
General airbag precautions ........... 39
Locations of airbags............................ 36
Modification and disposal of airbags............................................... 43
Side airbag operating conditions ............................................. 44
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 44
Side and curtain shield airbags precautions ......................... 39
SRS airbags ............................................. 36
SRS warning light ..............................455
A
Page 554 of 573

553Alphabetical index
IS350/250_U (OM53758U)
Alarm .............................................................. 71
Anchor brackets ...................................... 58
Antennas (smart access system with push-button start) ....................... 114
Anti-lock Brake System (ABS)....... 234 Function .................................................. 234
Warning light ...................................... 455
Approach warning (dynamic radar cruise control) ......................... 201
Armrest .................................................... 367
Assist grip ................................................ 369
Audio input.............................................. 266
Audio system.......................................... 260 Audio input............................................266
AUX port/USB port........................266
Bluetooth
® audio.............................. 309
CD player ..............................................287
iPod ...........................................................293
MP3/WMA/AAC disc .................287
Optimal use .......................................... 274
Portable music player ..................... 300
Radio ......................................................... 281
Steering wheel audio switch ........265
USB memory .......................................296 Automatic headlight leveling
system ...................................................... 174 Warning light ....................................... 456
Automatic High Beam ......................... 176
Automatic light control system ...................................................... 173
Automatic transmission....................... 164 If the shift lever cannot be shifted from P ............ 487
M mode .................................................... 167
Paddle shift switches..........................166
AUX port .................................................266
Average fuel economy ..........................87
Average vehicle speed..........................87