headlights Lexus IS F 2011 User Guide

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_EE
CAUTION
Replacing light bulbs
Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
Do not attempt to take apart or repair the low beam headlight bulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
Discharge headlights
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional, before replacing discharge headlights (includ-
ing light bulbs).
Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result
in serious injury or death by electric shock.
To prevent damage or fire
Make sure bulbs are fully seated and locked.

454
5-2. Steps to take in an emergency
IS F_EE
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (P. 146), 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 start-
ing procedures. (P. 146)
The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at a
low volume.
One of the following may be the cause of the problem.
The battery may be discharged. (P. 462)
The battery terminal connections may be loose or corroded.
The starter motor does not turn over, the interior lights and
headlights 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. 462)
There may be a malfunction in the engine immobilizer sys-
tem. (P. 92)
There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional, if the problem can-
not be repaired, or if repair procedures are unknown.

5
463
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
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 run-
ning 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 bat-
tery recharges automatically 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 any autho-
rized Lexus dealer or repairer, or another duly qualified and
id fil iblSTEP2
STEP3
STEP4
STEP5

481
6-1. Specifications
6
Vehicle specifica-
IS F_EE
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 BulbsWTy p e
Exterior
Headlights
High beam
Low/high beam
60
35D
A
Front turn signal lights21C
Front fog lights55B
Side turn signal lights5C
Rear turn signal lights21C
Back-up lights16E
Rear fog lights21E
Outer foot lights5E
Interior
Vanity lights8E
Interior lights
Front
Rear
5
3E
F
Overhead courtesy lights
Front
Rear
3.8
3E
F
Front door courtesy light5E
Trunk light5F

496
Alphabetical index
IS F_EE
Headlights
Discharge headlight
precautions .........................417
Replacing light bulbs ............407
Switch ...................................172
Wattage .................................481
Heaters
Seat heaters ...........................339
Side mirror ............................236
Hill-start assist control ..............206
Hood ..........................................363
Hooks
Cargo ....................................347
Coat ......................................344
Shopping bag ........................347
Horn...........................................161
Identification
Engine...................................473
Vehicle..................................473
Ignition switch ...........................146
Illuminated entry system ...........320
Indicator lights ..........................164
Inside rear view mirror ................79
Interior lights
Interior lights ........................320
Switch ...................................322
Wattage .................................481
Jack
Positioning a floor jack.........364
Vehicle-equipped jack ..........444
Jack handle ................................444Keyless entry .............................. 52
Keys
Electronic key ........................ 32
Engine switch ...................... 146
If the electronic key does not
operate properly ................ 458
If you lose your keys ........... 457
Key number ........................... 32
Keyless entry ......................... 52
Keys ....................................... 32
Mechanical key ...................... 32
Wireless remote control key .. 52
Light bulbs
Replacing ............................. 407
Wattage ................................ 481
Lights
Door courtesy light .............. 320
Emergency flasher switch.... 416
Fog light switch ................... 175
Hazard light switch .............. 416
Headlights switch ................ 172
Interior light switch ............. 322
Outer foot lights ................... 320
Overhead courtesy light ....... 320
Personal light switch............ 323
Replacing light bulbs ........... 407
Shift lever light .................... 320
Turn signal lever .................. 159
Vanity lights ........................ 331
Wattage ................................ 481
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