Lexus IS F 2014 Owner's Manual

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4-3. Do-it-yourself maintenance
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10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12RR DOOR RH20 APo w e r w i n d o w s
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 heaters,
windshield wiper de-icer
16FR S/HTR RH15 ASeat heaters
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, outside rear view
mirrors, VDIM, air conditioning sys-
tem, pre-collision seat belt, electric tilt
and telescopic steering, power win-
dows, navigation system, headlights,
front fog lights, parking lights, license
plate lights, windshield washer
FuseAmpereCircuit

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Maintenance and care
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■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→P. 4 5 4 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

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Headlight aim
■Removing the engine compartment cover.
→ P. 4 0 4
■ Vertical movement adjusting bolts
Adjustment bolt A
Adjustment bolt B
■ Before 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.
■ Adjusting the headlight aim
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns.
STEP1
STEP2
STEP3
STEP4
STEP1

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Turn bolt B the same number of
turns and in the same direction
as step 1 using a Phillips-head
screwdriver.
If the headlight cannot be
adjusted using this procedure,
take the vehicle to your Lexus
dealer to adjust the headlight
aim.
STEP2

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Light bulbs
Replacing light bulbs■ Back-up lights
Open the trunk door and remove
the cover clips.
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Preparing a replacement light bulb
Check the wattage of the light bulb being replaced. ( →P. 5 2 8 )
■ Bulb locations
Rear turn signal light Back-up light
STEP1

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Maintenance and care
IS F_UPartly remove the cover. Remove
the wire harness and turn the bulb
base counterclockwise.
Remove the light bulb.
■ Rear turn si gnal lights
Open the trunk door and remove
the cover.
Remove the connector and turn
the bulb base counterclockwise.
STEP2
STEP3
STEP1
STEP2

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4-3. Do-it-yourself maintenance
IS F_URemove the light bulb.
■ Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
● Headlight low and high beams (discharge bulbs)
● Headlight high beams
● Front fog lights
● Front turn signal lights
● Front side marker lights
● Stop/tail lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
● License plate lights
● Daytime running lights/parking lights
STEP3

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Maintenance and care
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■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 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 tail lights, stop/tail lights, front fog lights, daytime running lights/parking
lights and high mounted stoplight
The tail lights, stop/tail lights, front fog lights, daytime running lights/parking lights
and high mounted stoplight 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.

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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.
■Discharge headlights
●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.

When trouble arises5
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5-1. Essential informationEmergency flashers............... 460
If your vehicle needs to be towed ....................................... 461
If you think something is wrong ...................................... 467
Fuel pump shut off system ..................................... 468 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 469
If a warning message is displayed................................. 479
If you have a flat tire............... 493
If the engine will not start ......................................... 502
If the shift lever cannot be shifted from P ....................... 503
If you lose your keys .............. 504
If the electronic key does not operate properly.......... 505
If the vehicle battery is discharged ............................ 508
If your vehicle overheats ....... 511
If the vehicle becomes stuck......................................... 514
If your vehicle has to be stopped in an
emergency ............................. 515