2012 Lexus IS250 lights

502
5-2. Steps to take in an emergency
IS350/250_U
■The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 5 1 0 )
● There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

5
When trouble arises
511
5-2. Steps to take in an emergency
IS350/250_U
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The battery recharges automatically during driving.)
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Maintain the engine speed of the second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

528
6-1. Specifications
IS350/250_U
Electrical system
Differential
Front
Rear
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an
equivalent of matching quality to satisfy the above specification. Please contact
your Lexus dealer for further details.
Battery
Open voltage* at
68 °F (20 °C):12.6  12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil typeHypoid gear oil API GL-5
Oil viscosityAbove 0 °F (-18 °C): SAE90
Below 0 °F (-18 °C): SAE80W or SAE80W-90
Oil capacity
IS350:
1.42 qt. (1.35 L, 1.19 Imp. qt.)
IS250:
1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

536
6-1. Specifications
IS350/250_U
Light bulbs
A: D4S discharge bulbs
B: H11 halogen bulbs
C: Wedge base bulbs (amber)
D: HB3 halogen bulbs
E: Wedge base bulbs (clear)
F: Double end bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights
High beam
Low/high beam (discharge bulbs)
Low beam (halogen bulbs)
9005D4S
H116035
55D
A B
Front turn signal lights21C
Parking lights (vehicles with
halogen headlights)1685E
Front fog lightsH1155B
Rear turn signal lights744021E
Back-up lights92116E
Outer foot lights5E
Interior
Vanity lights8E
Tr u n k l i g h t5F
Interior lights Front
Rear
5
3E
F
Overhead courtesy lights3F
Front door courtesy lights5E

556
6-2. Customization
IS350/250_U
Power win-
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

557
6-2. Customization
6
Vehicle specifications
IS350/250_U
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

579
Alphabetical index
IS350/250_U
Back-up lightsWattage ................................................. 536
Battery Checking ...............................................408
If the vehicle has a discharged battery................................................... 510
Preparing and checking before winter .................................... 206
Bluetooth
® audio* ............................... 276
Bluetooth® phone*..............................294
Bottle holders ........................................ 334
Brake Fluid .......................................................... 406
Parking brake ........................................155
Brake assist ............................................... 196
Care Exterior ................................................... 378
Interior..................................................... 382
Seat belts ............................................... 383
Cargo capacity ..................................... 202
Cargo hooks ...........................................357
CD changer* ..........................................237
CD player* ..............................................237
Chains....................................................... 206 Child restraint system
Booster seats, definition .................... 114
Booster seats, installation ................. 121
Convertible seats, definition ............ 114
Convertible seats, installation ......... 121
Front passenger occupant
classification system ....................... 109
Infant seats, definition .......................... 114
Infant seats, installation ....................... 121
Installing CRS with LATCH
anchors ................................................... 119
Installing CRS with seat belts .......... 121
Installing CRS with top straps........124
Child safety
Airbag precautions ............................ 104
Battery precautions .................410, 512
Child restraint system ......................... 114
Child-protectors ................................... 49
How your child should wear the seat belt ..........................................68
Installing child restraints..................... 118
Moon roof precautions......................86
Power window lock switch ............. 80
Power window precautions ............ 82
Removed electronic key battery precautions .......................434
Seat belt comfort guide .....................66
Seat belt extender precautions...... 70
Seat belt precautions ..........................69
Seat heater precautions..... 347, 350
Trunk precautions................................. 54
B
C
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

580
Alphabetical index
IS350/250_U
Child-protectors ...................................... 49
Cigarette lighter....................................343
CleaningExterior ................................................... 378
Interior ..................................................... 382
Seat belts................................................383
Clock ........................................................ 338
Coat hooks ..............................................355
Compass ..................................................366
Condenser ..............................................406
Console box .......................................... 330
Cooling system Engine overheating ............................513
Cornering assist sensors .................... 190
Cruise control ......................................... 186
Cup holder .............................................. 332
Curtain shield airbags............................98
Customizable features .......................553
Daytime running light system ............174
Defogger* Rear window........................................ 224
Side mirror ............................................ 224
Dimension ................................................520
Dinghy towing ................................. 211, 212
Display
Satellite switch mode ....................... 339
Trip information ................................... 168
Warning message.............................. 481 Do-it-yourself maintenance ...............391
Door courtesy lights
Door courtesy lights ........................ 325
Wattage ................................................. 536
Door pockets ......................................... 334
Doors Door lock ................................33, 45, 48
Door windows....................................... 80
Side mirrors.............................................. 77
Driver's seat belt reminder light ..... 473
Driving Correct posture.....................................96
Procedures............................................. 130
Driving position memory...................... 58
Electric power steering........................196
Electronic key If the electronic key does not
operate properly............................505
Emergency, in case of
If a warning message is displayed .............................................. 481
If the electronic key does not operate properly............................505
If the engine will not start .................501
If the shift lever cannot be shifted from P................................... 503
If the vehicle has a discharged
battery ...................................................510
If the warning buzzer sounds........ 471
If the warning light turns on............ 471
D
E