2010 Lexus IS250C light

542
6-1. Specifications
10_IS250C/350C_U
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
Your vehicle must use only unleaded gasoline.
IS250C
Premium unleaded gasoline with an octane rating of 91 (Research Octane
Number 96) or higher required for optimum engine performance. If 91
octane cannot be obtained, you may use unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91). Use of unleaded gaso-
line with an octane rating lower than 91 may result in engine knocking. Per-
sistent knocking can lead to engine damage and should be corrected by
refueling with higher octane unleaded gasoline.
IS350C
Premium unleaded gasoline with an oc tane rating of 91 (Research Octane
Number 96) or higher required for optimum engine performance. If 91
octane cannot be obtained, you may use unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91). Use of unleaded gaso-
line with an octane rating lower than 91 may result in engine knocking and
significantly reduced performance. Persistent knocking can lead to engine
damage and should be corrected by refueling with higher octane unleaded
gasoline.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

554
6-1. Specifications
10_IS250C/350C_U
Tire related termMeaning
Intended outboard side-
wall
(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 other side-
wall of the tire, or
(b) The outward facing sidewall of an asymmetrical tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose 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
inflation 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
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10000 lb. or
less.
PlyA layer of rubber-coated parallel cords

560
6-2. Customization
10_IS250C/350C_U
Power win-
dows
(
→P. 7 8 )
Wireless remote control
linked operationOnOff
Retractable
hardtop
(
→P. 8 5 )
Retractable hardtop
operation control linked
to the intuitive parking
assist
OnOff
Automatic
light control
system
(
→P. 1 7 3 )
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
Windshield
wipers and
washer
(
→P. 177)
Switching operation when
the vehicle is stationaryOnOff
Drip prevention functionOnOff
Ti m e e l a p s e d b e f o r e t h e
drip prevention function
operatesVa r i a b l e
depending on
the vehicle
speed
3 seconds
Intuitive park-
ing assist
(
→P. 1 9 8 )
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)
ItemFunctionDefault settingCustomizedsetting

561
6-2. Customization
6
Vehicle specifications
10_IS250C/350C_U
Multi-information display (→P. 1 6 8 )
Illumination
(
→P. 3 3 8 )
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 foot well lightsOnOff
Shift lever lightOnOff
Outer foot lightOnOff
Available languageEnglish and French
ItemFunctionDefault settingCustomized
setting

570
10_IS250C/350C_U
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABSAnti-lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift
ALRAutomatic Locking Retractor
CALCalibration
CRSChild Restraint System
DISPDisplay
ECTElectronic Controlled Transmission
ECUElectronic Control Unit
EDREvent data recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
ETCSElectronic Throttle Control System
GAWRGross Axle Weight Rating
I/MEmission inspection and maintenance
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
PCSPre-Collision System
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Warning System

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10_IS250C/350C_U
Alphabetical index
Alphabetical index
A/C ............................................................230
ABS.............................................................204
AFS ...............................................................174
Adaptive front lighting system ..........174
Air conditioning filter .......................... 422
Air conditioning systemAir conditioning filter ....................... 422
Automatic air conditioning system .................................................. 230
Airbags
Airbag operating conditions..........102
Airbag precautions for your child........................................................ 106
Airbag warning light ........................ 464
Front passenger occupant classification system........................... 111
General airbag pr ecautions ......... 106
Locations of airbags.......................... 100
Modification and disposal of airbags .................................................... 110
Proper driving posture ........... 98, 106
Side airbag operating conditions............................................ 103
Side airbag precautions .................. 106
SRS airbags ........................................... 100
Alarm ............................................................95
Antenna .................................................... 247
Anti-lock brake system ......................204
Ashtrays ....................................................352
Audio input ..............................................284 Audio system
Antenna................................................... 247
AUX adapter ...................................... 284
Bluetooth
® audio ............................. 289
CD player/changer ......................... 250
iPod
® player ....................................... 265
MP3/WMA disc................................257
Optimal use ......................................... 282
Portable music player ..................... 284
Radio ........................................................ 242
Steering wheel audio switch........ 286
USB memory player ........................ 273
Automatic air conditioning system .................................................... 230
Automatic headlight leveling system ......................................................175
Automatic light control system......... 173
Automatic transmission Automatic transmission ................... 147
If the shift lever cannot be shifted from P................................... 499
S mode ....................................................... 151
AUX adapter ......................................... 284
A

573
Alphabetical index
10_IS250C/350C_U
Back-up lightsWattage ................................................... 541
Battery Checking ............................................... 402
If the vehicle has a discharged battery..................................................506
Preparing and checking before winter .................................... 220
Bluetooth
® audio ................................ 289
Bluetooth® phone ............................... 307
Brake Fluid ..........................................................400
Parking brake ........................................ 157
Brake assist ............................................. 204
Care
Exterior ....................................................374
Interior......................................................377
Seat belts ............................................... 378
Cargo capacity ....................................... 216
Cargo hooks .......................................... 359
CD changer ........................................... 250
CD player................................................ 250
Chains....................................................... 220
Child restraint system Booster seats, definition.....................116
Booster seats, installation ................ 123
Convertible seats, definition ............116
Convertible seats, installation ....... 123
Front passenger occupant
classification system ...........................111
Infant seats, definition ..........................116
Infant seats, installation...................... 123
Installing CRS with LATCH
anchors ................................................... 121
Installing CRS with seat belts ........ 123 Installing CRS with top straps........126
Child safety
Airbag precautions ............................ 106
Battery precautions ............ 404, 508
Child restraint system ......................... 116
How your child should wear the seat belt ..........................................68
Installing child restraints................... 120
Power window lock switch .............. 78
Power window precautions ........... 80
Removed electronic key battery precautions........................................426
Seat belt guide........................................66
Seat belt extender precautions...... 70
Seat belt precautions ..........................69
Seat heater precautions..................357
Trunk precautions................................. 49
Cigarette lighter....................................353
Cleaning Exterior.................................................... 374
Interior ..................................................... 377
Seat belts ................................................378
Clock .........................................................348
Compass ..................................................368
Condenser ............................................. 400
Console box ............................................ 341
Cooling system Engine overheating.......................... 509
Cornering assist sensors .................... 198
B
C

574
Alphabetical index
10_IS250C/350C_U
Cruise controlCruise control ...................................... 183
Dynamic radar crui se control .......187
Cup holder ..............................................343
Customizable features .......................557
Daytime running light system ............174
Defogger
Rear window........................................ 238
Side mirror ............................................ 238
Dimension ................................................526
Dinghy towing .............................225, 226
Display Dynamic radar crui se control .......187
Satellite switch mode ....................... 349
Trip information ....................................169
Warning message..............................472
Do-it-yourself maintenance ............ 386
Door courtesy lights Door courtesy lights.........................338
Wattage....................................................541
Doors
Door lock................................ 28, 40, 43
Door windows ....................................... 78
Side mirrors ............................................. 75
Driver's seat belt reminder light .....465
Driving Correct posture .................................... 98
Procedures ............................................. 132
Driving position memory ...................... 56 Electric power steering...................... 204
Electronic key
If the electronic key does not operate properly..............................501
Emergency, in case of If the engine will not start ................497
If the retractable hardtop does not close ................................... 514
If the shift lever cannot be shifted from P................................... 499
If the vehicle has a discharged battery .................................................506
If the warning buzzer sounds...... 463
If the warning light turns on.......... 463
If the warning message is displayed ............................................. 472
If you have a flat tire ........................ 486
If you lose your keys ........................500
If you think something is wrong .................................................. 459
If the electronic key does not operate properly..............................501
If your vehicle becomes stuck ...... 512
If your vehicle needs to be towed ................................................... 453
If your vehicle overheats................509
Emergency flashers Switch...................................................... 452
Engine Compartment ......................................392
Engine switch ........................................ 142
Hood ....................................................... 389
How to start the engine ................... 142
Identification number .......................527
If the engine will not start ................497
Ignition switch ....................................... 142
Overheating ........................................509
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