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477
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250C/350C_U■
Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
●Headlight low beams (vehicles with halogen bulbs)
● Headlight high and low beams (vehicles with discharge bulbs)
● Front fog lights
● Parking/daytime running lights (vehicles with discharge headlights)
● Front turn signal lights
● Front side marker lights
● Side turn signal lights
● Stop/tail lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
● License plate lights
■When replacing the front left headlight high beam and parking light bulbs (vehi-
cles with halogen headlights)
Remove the securing bolt and move the
washer fluid filler opening to allow easy
access to the light bulbs.
After replacing the bulbs, make sure to
secure the washer fluid filler opening with the
bolt.
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478
4-3. Do-it-yourself maintenance
IS250C/350C_U
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
■Discharge headlights (if equipped)
If voltage to the discharge bulbs is insufficient, the bulbs may not come on, or may
go out temporarily. The discharge bulbs will come on when normal power is
restored.
■LED light bulbs
The parking lights (vehicles with discharge headlights), front side marker lights, side
turn signal lights, tail lights, stop/tail lights, high mounted stoplight, rear side marker
lights and license plate lights consist of a number of LEDs. If any of the LEDs burn
out, take your vehicle to your Lexus dealer to have the light replaced.
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, connectors,
power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
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479
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250C/350C_U
CAUTION
■Discharge headlights (if equipped)
●Contact your Lexus dealer before replacing discharge headlights (including 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.
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6-1. Specifications
IS250C/350C_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 lightsWY21W21C
Parking lights (vehicles with
halogen headlights)W5W5E
Front fog lightsH1155B
Rear turn signal lightsWY21W21C
Back-up lights92116E
Outer foot lights5E
Interior
Vanity lights1.5F
Tr u n k l i g h t5F
Interior light5E
Door courtesy lights5E
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615
Alphabetical index
IS250C/350C_U
HeadlightsDischarge headlight
precautions ....................................... 479
Replacing light bulbs .......................468
Switch ........................................................ 176
Wattage .................................................568
Heaters Seat heaters...........................................372
Side mirror .............................................. 251
Hill-start assist control ....................... 220
Hood ........................................................... 413
Hooks
Cargo ...................................................... 375
Shopping bag...................................... 375
Horn............................................................. 160 I/M test......................................................409
Identification
Engine..................................................... 553
Vehicle ................................................... 553
Ignition switch...........................................147
Illuminated entry system ....................354
Indicator lights..........................................167
Initialization Items to initialize ................................ 590
Inside rear view mirror .......................... 78
Interior lights Interior lights .........................................354
Switch...................................................... 355
Wattage ................................................. 568
Jack Positioning a floor jack ......................414
Vehicle-equipped jack .................... 513
Jack handle............................................... 513
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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616
Alphabetical index
IS250C/350C_U
Keyless entry.............................................. 44
KeysElectronic key......................................... 28
Engine switch......................................... 147
If the electronic key does not operate properly ............................528
If you lose your keys......................... 527
Key number ............................................. 28
Keyless entry ........................................... 44
Keys ............................................................. 28
Mechanical key...................................... 29
Wireless remote control key .......... 44
Light bulbs Replacing...............................................468
Wattage................................................. 568
Lights Door courtesy lights......................... 354
Emergency flasher switch ............. 482
Fog light switch.................................... 180
Hazard light switch ........................... 482
Headlights switch ................................ 176
Interior light switch............................355
Outer foot lights ................................. 354
Personal light switch ........................355
Replacing light bulbs........................468
Scuff lights.............................................. 354
Shift lever light ..................................... 354
Turn signal lever .................................. 158
Vanity lights .......................................... 364
Wattage................................................. 568
Load capacity ......................................... 232 “MAINT REQD” message reset ... 405
Maintenance
Do-it-yourself ma intenance........... 410
General maintenance..................... 406
Maintenance data ............................. 552
Maintenance requirements.......... 404
Meter Instrument panel light control ....... 162
Meters.........................................................161
Micro dust and pollen filter* ............ 246
Mirrors Inside rear view mirror .......................78
Side mirror heater............................... 251
Side mirrors.............................................. 79
Vanity mirrors ..................................... 364
MP3 disc*.................................................. 271
Multi-information display ..................... 171
Noise from under vehicle ......................19K
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