headlights Lexus IS250C 2012 Instrument cluster / LEXUS 2012 IS250C,IS350C (OM53A62U) User Guide

470
4-3. Do-it-yourself maintenance
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12FR DOOR RH20 APower windows, outside rear view
mirrors
13AM27. 5 AStarting system
14RH-IG7. 5 A
Seat belt pretensioner, intuitive park-
ing assist, automatic transmission, seat
heater and ventilator
15FR S/HTR RH15 ASeat heaters and ventilators, air condi-
tioning system
16ECU-IG RH10 A
Power seats, headlights, front fog
lights, parking lights, license plate
lights, front side marker lights, wind-
shield washer, outside rear view mir-
rors, VDIM, air conditioning system,
pre-collision seat belt, electric tilt and
telescopic steering, power windows,
navigation system, vehicle stability
control, retractable hardtop, clock
FuseAmpereCircuit

475
4-3. Do-it-yourself maintenance
4
Maintenance and care
Light bulbs
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. 577)
■ Removing the engine compartment cover
 P. 4 2 4
■ Front bulb locations
Parking lights (vehicles with
halogen headlights)
Headlight high beam
(vehicles with discharge headlights)
Headlight high beam and daytime
running lights (v
ehicles with
halogen headlights)

477
4-3. Do-it-yourself maintenance
4
Maintenance and care
Replacing light bulbs■ Headlight high beams and daytime r unning lights (vehicles with halo-
gen headlights)
Release the lock and remove the
cover.
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
STEP1
STEP2
STEP3

478
4-3. Do-it-yourself maintenance
■Headlight high beams (vehicles with discharge headlights)
Turn the cover counterclockwise
and remove it.
Turn the bulb base counterclock-
wise.
Unplug the connector while pull-
ing the lock release.
STEP1
STEP2
STEP3

479
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Parking lights (vehicles with halogen headlights)
Release the lock and remove the
cover.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP1
STEP2
STEP3

482
4-3. Do-it-yourself maintenance
■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 (veh icles 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 le ft 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.

483
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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 in side 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 light s, 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 ba re 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 en tering 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 headligh t bulbs, connectors,
power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.

484
4-3. Do-it-yourself maintenance
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 wi ll 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.

5
When trouble arises
539
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running 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 vehi-
cle 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 dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
Maintain the engine speed of th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

577
6-1. Specifications
6
Vehicle specifications
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
HeadlightsHigh beam
Low/high beam (discharge bulbs)
Low beam (halogen bulbs)
9005
D4SH1160
35
55DA B
Front turn signal lightsWY21W21C
Parking lights (vehicles with
halogen headlights)W5W5E
Front fog lightsH1155B
Rear turn signal lightsWY21W21C
Back-up lights92116E
Outer foot lights5E
Interior
Vanity lights1.5F
Trunk light5F
Interior light5E
Door courtesy lights5E