Lexus IS250 2012 Using the Bluetooth audio system / LEXUS 2012 IS250,IS350 OWNERS MANUAL (OM53A87U)
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6-1. Specifications
6
Vehicle specifications
Ply separationA parting of rubber compound between adjacent 
plies
Pneumatic tire
A mechanical device made of rubber, chemicals, fab-
ric and steel or other mate rials, that, when mounted 
on an automotive wheel, provides the traction and 
contains the gas or fluid that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that extend to 
the beads are laid at substantially 90 degrees to the 
centerline of the tread
Reinforced tire 
A tire designed to operate at higher loads and at 
higher inflation pressures than the corresponding 
standard tire
Section width
The linear distance between the exteriors of the side-
walls of an inflated tire, excluding elevations due to 
labeling, decoration, or protective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber  compound from the cord 
material in the sidewall
Snow tire
A tire that attains a traction index equal to or greater 
than 110, compared to the ASTM E-1136 Standard 
Reference Test Tire, when using the snow traction test 
as described in ASTM F-1805-00, Standard Test 
Method for Single Wheel Driving Traction in a 
Straight Line on Snow-and Ice-Covered Surfaces, 
and which is marked with an Alpine Symbol (
  ) 
on at least one sidewall
Te s t  r i mThe rim on which a tire is fitted for testing, and may be 
any rim listed as appropriate for use with that tire
Tr e a dThat portion of a tire that comes into contact with the 
road
Tire related termMeaning 
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6-1. Specifications
*: Table 1  Occupant loading and distribution for vehicle normal load for
various designated seating capacities
Tr e a d  r i bA tread section running circumferentially around a 
tire
Tr e a d  s e p a r a t i o nPulling away of the tread from the tire carcass
Treadwear indicators 
(TWI)The projections within the principal grooves 
designed to give a visual indication of the degrees of 
wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire assembly 
securely during testing
Designated seating 
capacity, Number of  occupantsVehicle normal load, 
Number of occupantsOccupant distribution in 
a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second 
seat, 1 in third seat, 1 in  fourth seat
16 through 207
2 in front, 2 in second 
seat, 2 in third seat, 1 in 
fourth seat
Tire related termMeaning 
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6
Vehicle specifications
6-2. Customization
Customizable features
ItemFunctionDefault settingCustomizedsetting
Smart access 
system with 
push-button 
start 
(
P.  3 3 )
Operation signal
(Emergency flashers)OnOff
Operation signal
(Buzzer)OnOff
Wireless 
remote con-
trol 
(
P.  4 5 )
Unlocking operation
Driver's door 
unlocked in one 
step, all doors 
unlocked in two 
steps
All doors 
unlocked in one 
step
Automatic door lock 
function to be activated if 
door is not opened after 
being unlocked
OnOff
Your vehicle includes a variety of elec tronic features that can be personal-
ized to your preferences. Programming these preferences requires spe-
cialized equipment and may be performed by an authorized Lexus
dealership.
Some function settings are changed simultaneously with other functions
being customized. Contact your Lexus dealer for further details. 
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6-2. Customization
Wireless 
remote con-
trol 
(
P.  4 5 )
Time elapsed before auto-
matic door lock function is 
activated if door is not 
opened after being 
unlocked
60 seconds
30 seconds
120 seconds
Operation signal
(Emergency flashers)OnOff
Operation signal 
(Buzzer) OnOff
Door lock buzzerOnOff
Trunk unlocking functionOnOff
Trunk unlocking operationPush and holdPush twice
One short push
Panic functionOnOff
ItemFunctionDefault settingCustomizedsetting 
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6-2. Customization
6
Vehicle specifications
Door lock 
(
P.  4 8 )
Unlocking using a key
Driver's door 
unlocked in one 
step, all doors 
unlocked in two 
steps
All doors 
unlocked in one  step
Speed-detecting auto-
matic door lock function 
(Manual transmissions)
OnOff
Speed-detecting auto-
matic door lock function 
(Automatic transmissions)
OffOn
Opening driver's door 
unlocks all doors (Manual 
transmissions)
OnOff
Opening driver's door 
unlocks all doors (Auto-
matic transmissions)
OffOn
Shifting gears to P 
unlocks all doorsOnOff
Shifting gears to a posi-
tion other than P locks all 
doors
OnOff
Steering 
wheel 
(
P.  7 3 )
Auto tilt-away functionOnOff
ItemFunctionDefault settingCustomizedsetting 
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6-2. Customization
Pow e r  w i n -
dows 
(
P.  8 0 )  
Linked door key opera-
tionOpen and close
Off
Open only
Close only
Wireless remote control 
linked operationOffOpen only
Moon roof
(
P.  8 3 )  
Linked door key opera-
tionOpen and close
Off
Open only
Close only
Linked operation of com-
ponents when door key is 
used
Slide onlyTilt only
Wireless remote control 
linked operationOffOpen only
Linked operation of com-
ponents when wireless 
remote control is used
Slide onlyTilt only
Automatic 
light control 
system 
(
P.  1 7 2 )
Light sensor sensitivityLevel 3Level 1 to 5
Ti m e  e l a p s e d  b e f o r e  
headlights automatically 
turn off after doors are 
closed
30 seconds
0 seconds
60 seconds
90 seconds
Lights 
(
P.  1 74 )
Daytime running light sys-
tem (U.S.A. only)OnOff
ItemFunctionDefault settingCustomizedsetting 
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6-2. Customization
6
Vehicle specifications
Windshield 
wipers and 
washer 
(
P.  1 7 8 )
Switching operation when 
the vehicle is stationaryOnOff
Drip prevention functionOnOff
Time elapsed before the 
drip prevention function 
operatesVa r i a b l e  
depending on 
the vehicle 
speed
3 seconds
Intuitive park-
ing assist
(
P.  1 9 0 )
Back sensor operation 
display and buzzerOnOff
Buzzer volumeLevel 3Level 1 to 5
Distance which a sensor 
detects4.9 ft. (150 cm)2.0 ft. (60 cm)
Illumination
(
P.  3 2 5 )
Time elapsed before lights 
turn off15 seconds7. 5  s e c o n d s
30 seconds
Operation when the 
doors are unlockedOnOff
Operation after the 
“ENGINE START STOP” 
switch is turned OFF
OnOff
Front footwell lightsOnOff
Shift lever lightOnOff
Outer foot lightOnOff
Seat belt 
reminder
(
P.  4 7 3 )
Vehicle speed linked seat 
belt reminder buzzerOnOff
ItemFunctionDefault settingCustomizedsetting 
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6-2. Customization
Multi-information display (P.  1 6 7 )
CountryAvailable languages
CanadaEnglish and French 
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6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Maintenance data 
(U.S.A. only)After the maintenance is performedP.  3 8 6
Tire pressure warning 
system
• When rotating the tires with differing front and rear tire inflation pressures.
• When changing the tire inflation  pressure by changing traveling 
speed.
• When changing the tire size.
P.  4 1 3
The following items must be initialized for normal system operation in cases
such as after the battery is reconnected, or maintenance is performed on
the vehicle. 
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6-3. Initialization