light LEXUS IS250 2016 Owners Manual

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4-3. Do-it-yourself maintenance
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Maintenance and care
FuseAmpereCircuit
13FR DOOR RH20 APower windows, outside rear view
mirrors
14AM27. 5 ASmart access system with push-button
start
15RH-IG7. 5 A
Seat belts, intuitive parking assist,
automatic transmission, seat heater
and ventilator
16FR S/HTR RH15 ASeat heaters and ventilators
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, AWD system, out-
side rear view mirrors, VDIM, air con-
ditioning system, pre-collision seat
belt, electric tilt and telescopic steer-
ing, power windows, navigation sys-
tem
nAfter a fuse is replaced
lIf the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→P. 3 6 3 )
lIf the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
nIf there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

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Maintenance and care
Headlight aim
nRemoving the engine compartment cover
→P. 31 2
nVertical movement adjusting bolts
Adjustment bolt A
Adjustment bolt B
nBefore checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
STEP1
STEP2
STEP3
STEP4

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4-3. Do-it-yourself maintenance
nAdjusting the headlight aim
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns in mind.
Turn bolt B the same number of
turns and in the same direction
as step 1 using a Phillips-head
screwdriver.
If the error is over the value
specified above, take the vehicle
to your Lexus dealer to adjust
the headlight aim.
STEP1
STEP2

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Maintenance and care
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
nPreparing a replacement light bulb
Check the wattage of the light bulb being replaced. (→P. 445)
nRemoving the engine compartment cover
→P. 31 2
nFront bulb locations
nRear bulb locations
Parking light
Headlight
high beam
Rear turn signal lightBack-up light

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4-3. Do-it-yourself maintenance
Replacing light bulbs
nHeadlight high beams
Release the lock and remove the
cover.
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
STEP1
STEP2
STEP3

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nParking lights
Release the lock and remove the
cover.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
nBack-up light
Open the trunk door and remove
the trunk panel cover clips.
STEP1
STEP2
STEP3
STEP1

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Partly remove the trunk panel
cover and turn bulb bases coun-
terclockwise.
Remove the light bulb.
nRear turn signal lights
Open the trunk door and remove
the cover.
Turn the bulb base counterclock-
wise.
STEP2
STEP3
STEP1
STEP2

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Remove the light bulb.
nBulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
lHeadlight low beams (halogen bulbs)
lHeadlight high and low beams (discharge bulbs)
lFront fog lights
lFront turn signal lights
lFront side marker lights
lSide turn signal lights
lStop/tail lights
lTail lights
lRear side marker lights
lHigh mounted stoplight
lLicense plate lights
STEP3

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4-3. Do-it-yourself maintenance
nWhen replacing the front left headlight and parking light bulbs
nCondensation 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.
lLarge drops of water are built up on the inside of the lens.
lWater has built up inside the headlight.
nDischarge 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.
nLED front side marker lights, side turn signal lights, tail lights, stop/tail lights, high
mounted stoplight, rear side marker lights and license plate lights
The 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 num-
ber of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer to
have the light replaced.
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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Maintenance and care
CAUTION
nReplacing light bulbs
lTurn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights.
The bulbs become very hot and may cause burns.
lDo 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.
lFully 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.
lDo 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.
nDischarge headlights (if equipped)
lContact your Lexus dealer before replacing discharge headlights (including light
bulbs).
lDo 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.
nTo prevent damage or fire
Make sure bulbs are fully seated and locked.