2013 Lexus IS300h headlights

4947-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
CAUTION
Replacing light bulbs
Turn off the lights. Do not attempt to replace the bulb immediately after turn-
ing 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
unavoidable 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 headlights or cause condensation to build up on the lens.
Discharge headlights (if equipped)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional before replacing the discharge headlights (including
light bulbs).
Do not touch the discharge headlight’s high voltage socket when the head-
lights 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 installing 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 head-
light assembly will be extremely hot. To
prevent burns, do not touch these metal
components until you are certain they
have cooled down.
Metal components

5238-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-crash brake
system operation is stopped
Turn the VSC on. (P. 295)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is
not currently functional because the grille cover or
the sensor is dirty
Check the grille cover and the sensor and clean
them if they are dirty.
Indicates that operation of large electricity consum-
ing systems such as the air conditioning system are
suspended
Stop using unnecessary electric components to
reduce electricity consumption. Wait a while
until the electric power supply is restored.
(If equipped)
Indicates that the LDA (Lane Departure Alert) sys-
tem cannot be used because the vehicle speed is
lower than approximately 50 km/h (32 mph)
Drive the vehicle at 50 km/h (32 mph) or higher.
Warning messageDetails/Actions
(Flashes)

5468-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
One of the following may be the cause of the problem:
The electronic key may not be functioning properly. (P. 550)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
There may be a malfunction in the immobilizer system. (P. 9 0 )
There may be a malfunction in the steering lock system.
The hybrid system may be malfunctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However,
depending on the type of malfunction, an interim measure is available
to start the hybrid system. (P. 547)
One of the following may be the cause of the problem:
The 12-volt battery terminal connections may be loose or corroded.
The 12-volt battery may be discharged. (P. 551)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the situa-
tion. Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 209)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

5478-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
One of the following may be the cause of the problem:
One or both of the 12-volt battery terminals may be disconnected.
The 12-volt battery may be discharged. (P. 551)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to start the hybrid system if the power switch is func-
tioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4

5538-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from which they were connected.
Once the hybrid system starts, have the vehicle inspected at any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped
professional as soon as possible.
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system 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.
Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the 12-volt battery
may discharge, and the hybrid system may be unable to start. (The 12-volt bat-
tery recharges automatically while the hybrid system is operating.)
When recharging or replacing the 12-volt battery
For vehicles with an alarm: Make sure that the key is not inside the vehicle
when recharging or replacing the 12-volt battery. The key may be locked in the
vehicle if the alarm is activated. (P. 98)
In some cases, it may not be possible to unlock the doors using the smart entry
& start system when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a mal-
function.
The power switch mode is memorized by the vehicle. When the 12-volt battery
is reconnected, the system will return to the mode it was in before the 12-volt
battery was discharged. Before disconnecting the 12-volt battery, turn the
power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery
discharged, be especially careful when reconnecting the 12-volt battery.
8

5729-1. Specifications
IS300h_EE(OM53B95E)
Light bulbs*1
Light bulbsWType
Exterior
Discharge headlights*235A
Front fog lights (except F SPORT mod-
els)*219B
Front turn signal lights21C
Rear turn signal lights21C
Back-up lights16D
Outer foot lights5D
Interior
Door courtesy lights5D
Vanity lights8D
Interior light8D
Personal lights8D
Footwell lights3.8D
Trunk light*25D
A: D4S discharge bulbs
B: 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

5829-2. Customization
IS300h_EE(OM53B95E)
Turn signal lever (P. 222)
*1: After flashing the turn signal lights when turning left or right while this func-
tion is off and the turn signal lever is moved to the first position in the direc-
tion of the flashing light, the turn signal lights can be selected to be flashing or
off.
*2: The turn signal lights keep flashing if the turn signal lever is moved to the first
position in the direction of flashing light.
*3: The turn signal lights will be off if the turn signal lever is moved to the first
position in the direction of flashing light.
Automatic light control system (P. 226)
FunctionDefault set-
tingCustomized set-
ting
The number of times the
turn signal lights flash
automatically when the
turn signal lever is moved
to the first position during
a lane change
*1
3
5
———O7
Off *2
Off*3
1234
FunctionDefault set-
tingCustomized set-
ting
Light sensor sensitivityStandard-2 to 2O—OO
Time elapsed before
headlights automatically
turn off
30 seconds
60 seconds
———O90 seconds
120 seconds
Welcome light illumina-
tion controlOnOff———O
1234

599Alphabetical index
IS300h_EE(OM53B95E)
Fuel ............................................241
Capacity ................................564
Fuel gauge ............................110
Information ...........................573
Refueling ..............................241
Type ..............................241, 564
Warning light........................509
Fuel consumption ......................125
Average fuel economy..........117
Current fuel consumption .....117
Fuel filler door...........................241
If the fuel filler door
cannot be opened................243
Refueling ..............................241
Fuel gauge .................................110
Fuses ..........................................475
Gauges .......................................110
Glove box ..................................414
Glove box light ..........................414Hands-free system
(for cellular phone) ................ 367
Head restraints .......................... 173
Headlight cleaner...................... 235
Headlights................................. 226
Automatic High Beam
system................................ 229
Discharge headlights
precautions ........................ 494
Follow me home system ...... 227
Light switch ......................... 226
Replacing light bulbs ........... 493
Wattage ................................ 572
Heaters ...................................... 398
Air conditioning system....... 398
Heated steering wheel.......... 409
Outside rear view mirrors .... 404
Seat heaters .......................... 410
Hill-start assist control.............. 293
High-voltage components........... 83
Hood ......................................... 437
Open..................................... 437
Pop Up Hood ......................... 56
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