bulb Lexus IS250 2014 VOICE COMMAND SYSTEM OPERATION / LEXUS 2014 IS250,IS350 (OM53758U) User Guide

4377-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
Remove the light bulb.
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the front turn signal light to visually
check that there is no light leaking
from the bulb base.
Reinstall the fender liner, fasten
the clamp and install the 2 clips.
Install the lower clip by inserting it
with the clip groove held vertically
straight.
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5
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4387-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■Front turn signal lights (vehicles with LED headlights) For the left side only: Pinch the
clip to remove the washer fluid
filler opening.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the front turn signal light to visually
check that there is no light leaking
from the bulb base.
After replacing the left side bulb, insta ll the washer fluid filler opening to its
original position.
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4397-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
■Rear turn signal lightsOpen the trunk, and remove the
2 covers and 2 screws.
When removing the cover, wrap the
tip of the screwdriver with tape to
protect the vehicle from damage.
Push and pull the light unit toward
the rear of the vehicle as shown in
the illustration to remove it.
Apply protective tape to the periph-
eral of the light un it installation sur-
face on the vehicle body, such as the
rear bumper, to protect the vehicle
from damage.
Pushing on the portion A in the illus-
tration toward the rear of the vehicle
will make disengagement of the tabs
easier.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
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2
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4407-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the rear turn signal light to visually
check that there is no light leaking
from the bulb base.
Align the tabs and push the light
unit toward the front of the vehicle
to install it.
Remove the protective tape applied
to the peripheral of the light unit
installation surface on the vehicle
body.
Install the 2 screws and 2 covers.
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6
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4417-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
■Back-up lightOpen the trunk, remove the 3
clips on the side which the bulb is
to be replaced and pull back the
trunk lid cover.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Pull out the connector carefully,
ensuring that excessive pulling load is
not applied to the wire harness.
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the back-up light to visually check
that there is no li ght leaking from the
bulb base.
Reinstall the trunk lid cover with the 3 clips.
To install the clips, simply push them in.
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4427-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlights
●Parking lights and daytime running lights
●Side marker lights
●Side turn signal lights
●Outer foot lights
●Stop/tail lights
●Tail lights
●High mounted stoplight
●License plate lights
■Discharge headlights (if equipped)
If voltage to the discharge bulb s 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 Lights
The lights other than the discharge headlights (if equipped), fog lights (if equipped), front
turn signal lights, rear turn signal lights, back-up light and outer foot lights each 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.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Wa t e r h a s b u i l t u p i nside the headlight.
■When replacing the front turn signal lights (vehicles with LED headlights)
When the washer fluid filler opening is removed with a large amount of washer fluid con-
tained in the washer tank, washer fluid ma y spill onto the vehicle and cleaning may be
required.
■When replacing light bulbs
 P. 4 3 1

4437-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
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. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
■Discharge headlights (if equipped)
●Contact your Lexus dealer before replacing the discharge headlights (including light
bulbs).
●Do not touch the discharge headlight’s high voltage socket when the headlights are
turned on.
An extremely high voltage of 30000 V will be discharged and could result in death
or serious injury by electric shock.
●Do not attempt to take apart or repair the headlight bulbs, connectors, power supply
circuits, or related components.
Doing so could result in electric shock and death or serious injury.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installin g to prevent heat damage.
●Vehicles with discharge headlights:
While the headlights are turned on, and for a
short time after they have been turned off,
metal components at the rear of the headlight
assembly will be extremely hot. To prevent
burns, do not touch these metal components
until you are certain they have cooled down.
Metal components

5099-1. Specifications
9
Vehicle specifications
IS350/250_U (OM53758U)
Light bulbs*1
Light bulbsBulb No.WTy p e
Exterior
Discharge headlights*235A
Fog lights*219B
Front turn signal lights7444NA28 /8C
Rear turn signal lights21C
Back-up lights92116D
Outer foot lights5D
Interior
Door courtesy lights1685D
Vanity lights8D
Interior light8D
Pe r s o n a l l i g h t s8D
Footwell lights1943.8D
Trunk light5D
A: D4S discharge bulbsB: H16 halogen bulbs
C: Wedge base bulbs (amber) D: Wedge base bulbs (clear)
*1: Light bulbs not listed in this table are LED bulbs.
*2: If equipped

554Alphabetical index
IS350/250_U (OM53758U)
Back-up lightsReplacing light bulbs ......................... 441
Wattage ................................................. 509
Battery.......................................................408 Battery checking ............................... 408
If the vehicle battery is discharged.................................... 490
Preparing and checking before winter ....................................................254
Warning light ...................................... 455
Bluetooth
®
Audio system ...................................... 309
Hands-free system (for cellular phone) ........................... 311
Bottle holders ......................................... 360
Brake Fluid...........................................................407
Parking brake......................................... 172
Warning light ...................................... 455
Brake assist ............................................. 234
Break-in tips.............................................. 147
Brightness control Instrument panel light control .........84
BSM (Blind Spot Monitor)................ 246 Care................................................384, 387
Aluminum wheels ..............................384
Exterior ...................................................384
Interior ..................................................... 387
Seat belts............................................... 388
Cargo capacity ....................................... 156
Cargo hooks ...........................................362
CD player.................................................287
Chains ....................................................... 255
Child restraint system ............................54 Booster seats, definition .................... 55
Booster seats, installation ................. 64
Convertible seats, definition ........... 55
Convertible seats, installation........... 61
Front passenger occupant classification system..........................47
Infant seats, definition.......................... 55
Infant seats, installation......................... 61
Installing CRS with LATCH anchors ..................... 59
Installing CRS with seat belts ........... 61
Installing CRS with top tether strap......................... 65
BC

558Alphabetical index
IS350/250_U (OM53758U)
Emergency flashers ............................. 446
Engine ....................................................... 502Accessory mode................................. 160
Compartment....................................... 401
Engine switch ........................................ 159
Hood ....................................................... 399
How to start the engine ................... 159
Identification number ........................ 501
If the engine will not start............... 485
Ignition switch (engine switch)..... 159
Overheating .........................................494
Engine coolant....................................... 405 Capacity ................................................ 504
Checking............................................... 405
Preparing and checking before winter ....................................254
Engine coolant temperature gauge ..........................................................81
Engine immobilizer system ................. 69
Engine oil ................................................. 402 Capacity ................................................ 502
Checking................................................402
Preparing and checking before winter ....................................254
Engine switch .......................................... 159
Enhanced VSC ..................................... 234
EPS (Electronic Power Steering) ........ 235 Function ..................................................235
Warning light ...................................... 455
Event data recorder (EDR) ...................10 First-aid kit storage belt......................362
Flat tire .......................................................475
Floor mats....................................................26
Fluid
Automatic transmission ................. 505
Brake....................................................... 506
Washer .....................................................410
Fog lights..................................................... 181 Replacing light bulbs ....................... 434
Switch ......................................................... 181
Wattage ................................................ 509
Footwell light .......................................... 356 Wattage ................................................ 509
Front passenger occupant classification system ............................ 47
Front personal lights ............................357 Wattage ................................................ 509
Front seats ................................................. 120 Adjustment..............................................120
Cleaning................................................. 387
Correct driving posture .................... 28
Driving position memory................. 123
Head restraints ..................................... 127
Power easy access system ............. 124
Seat heaters ..........................................355
Seat position memory ....................... 123
Seat ventilators....................................355F