lights Lexus IS F 2012 Workshop Manual

454
IS F_U
5-1. Essential information
Emergency flashers
NOTICE
■To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the engine is
not running.
Use the emergency flashers if the vehicle malfunctions or is involved in an
accident.
Press the switch to flash all the
turn signal lights. To turn them
off, press the switch once again.

5
When trouble arises
463
IS F_U
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:→ P. 4 7 7
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

5
When trouble arises
473
5-2. Steps to take in an emergency
IS F_U
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
If any of the warning lights turns on again after performing the follow-
ing actions, contact your Lexus dealer.

496
5-2. Steps to take in an emergency
IS F_U
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (
→P. 134), consider each of the following points.
■The engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 3 4 )
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( →P. 502)
● The battery terminal connections may be loose or corroded.
■ 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. 502)
● There may be a malfunction in the engine immobilizer system.
(→ P. 8 6 )
● 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
503
5-2. Steps to take in an emergency
IS F_U
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●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 vehi-
cle 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 dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
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.STEP2
STEP3
STEP4
STEP5

518
6-1. Specifications
IS F_U
Ignition system
Electrical system
Differential
*: 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.
Spark plug
Make
GapDENSO FK20HBR11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the engine.
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 capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil
LX 75W-85 GL-5” or equivalent

522
6-1. Specifications
IS F_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
9005D4S6035D
A
Front turn signal lights21C
Front fog lights55B
Rear turn signal lights21C
Back-up lights92116E
Outer foot lights5E
Interior
Vanity lights8E
Interior lights Front
Rear
5
3E
F
Rear overhead courtesy light3F
Front door courtesy lights5E
Tr u n k l i g h t5F

540
6-2. Customization
IS F_U
Power win-
dows
(
→P. 76 )
Linked door lock opera-
tionOnOff
Linked door key opera-
tionOpen and closeOpen only
Close only
Wireless remote control
linked operationOffOpen only
Moon roof
(
→P. 7 9 )
Linked door lock opera-
tionOnOff
Linked door key opera-
tionOpen and closeOpen 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
Off
Slide only
Tilt only
Automatic
light control
system
(
→P. 1 6 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 6 4 )
Daytime running light sys-
tem (U.S.A. only)OnOff
ItemFunctionDefault settingCustomizedsetting

541
6-2. Customization
6
Vehicle specifications
IS F_U
Windshield
wipers and
washer
(
→P. 1 6 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 1 )
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 3 0 )
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 lightsOnOff
Seat belt
reminder
(
→P. 466)
Vehicle speed linked seat
belt reminder buzzerOnOff
ItemFunctionDefault settingCustomized setting

562
IS F_U
Alphabetical index
Alphabetical index
A/C* ..........................................................220
ABS.............................................................. 197
ACCESSORY mode .......................... 134
Air conditioning filter .......................... 426
Air conditioning systemAir conditioning filter ....................... 426
Automatic air conditioning system .................................................. 220
Airbags Airbag operating conditions........... 97
Airbag precautions for your child.......................................................... 101
Airbag warning light ........................ 464
Curtain shield airbag operating conditions.............................................. 97
Curtain shield airbag
precautions .......................................... 101
Front passenger occupant
classification system....................... 106
General airbag pr ecautions ........... 101
Locations of airbags............................ 94
Modification and disposal of airbags .................................................. 105
Proper driving posture ............. 92, 101
Side airbag operating conditions.............................................. 97
Side airbag precautions .................... 101
SRS airbags ............................................. 94
Alarm ........................................................... 88
Antenna* ..................................................238
Anti-lock brake system ....................... 197
Armrest ...................................................... 351
Ashtrays ....................................................346
Audio input*............................................ 275
Audio system* Antenna .................................................. 238
Audio input ........................................... 275 AUX port ...............................................275
Bluetooth® audio ............................. 280
CD player/changer ........................... 241
iPod .......................................................... 256
MP3/WMA disc............................... 248
Optimal use .......................................... 273
Portable music player ......................275
Radio ........................................................233
Steering wheel audio switch......... 277
USB memory .......................................264
USB port ................................... 256, 264
Automatic air conditioning
system* .................................................. 220
Automatic headlight leveling
system ......................................................165
Automatic light control system.........162
Automatic transmission Automatic transmission ................... 138
If the shift lever cannot be shifted from P....................................497
M mode ................................................... 143
AUX port* .............................................. 275
Auxiliary box .......................................... 339
Back-up lights Wattage ..................................................522
Battery Checking............................................... 406
If the vehicle has a discharged battery ................................................. 502
Preparing and checking before winter...................................... 214
Bluetooth
® audio* ...............................280
Bluetooth® phone* ............................. 299
Bottle holders ......................................... 339
A
B