2013 Lexus GS300h headlights

8046-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Vehicles with LED headlights
Rear
Halogen front fog light (if equipped)
Front turn signal light1
2
Back-up light (left-hand traffic countries)
Back-up light (right-hand traffic countries)
Rear turn signal light
Outer foot light1
2
3
4

807 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Front turn signal lights (vehicles with discharge headlights)
For the left side only: To
allow enough working
space, turn the steering
wheel all the way to the
right, then remove the bolts
and take off the cover.
Turn the bulb base counterclockwise.
1
2
Right sideLeft side

809 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Front turn signal lights (vehicles with LED headlights)
For the left side only:
Remove the bolt and move
the washer fluid filler open-
ing.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
1
2
3

8186-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Headlights
Front position lights/daytime running lights
LED front fog lights (if equipped)
Side turn signal lights
Stop/tail lights
Tail lights
Rear fog light
High mounted stoplight
License plate lights
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 Lights
The lights other than the discharge headlights (if equipped), halogen front
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 any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional 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 any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional for more information in the
following situations:
Large drops of water have built up on the inside of the lens.
Water has built up inside the headlight.
When replacing light bulbs

819 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)P. 8 0 2
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
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.
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

8206-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
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.
NOTICE
When replacing the outer foot lights
If the front window is stopping you from conducting the replace operation
properly, open the window on the side you are working on to allow you
enough space to work. Continuing the operation without giving yourself
enough space to work could lead you to scratch the vehicle.

8597-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
A warning message is shown on the multi-information display.
After taking the specified steps to correct the suspected problem,
check that the warning message goes off.
Follow the correction procedures.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that the
dynamic radar cruise
control with full-speed
range is unable to
judge vehicle-to-vehi-
cle distance
• Depress the brake
pedal.
• Turn off the snow
mode.
• If the windshield
wipers are on, turn
them off or set them
to a mode other than
AUTO or high speed
wiper operation.
(If equipped)
Indicates that the Auto-
matic High Beam
switch is pressed while
the headlights are in
low beam.Turn the high beam on
and press the Auto-
matic High Beam
switch again.
Indicates that the brake
hold system is not hold
the vehicle when the
vehicle is on a slippery
road
Use the brake hold sys-
tem when it becomes
available.
Indicates that the
washer fluid level is
low
Add washer fluid.

9047-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
The electronic key may not be functioning properly. (P. 911)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
There may be a malfunction in the immobilizer system. (P. 91)
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 mea-
sure is available to start the hybrid system. (P. 905)
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 913)
The 12-volt battery terminal connections may be loose or cor-
roded.
Reasons for the hybrid system not starting vary depending on the
situation. Check the following and perform the appropriate proce-
dure:
The hybrid system will not start even though the correct start-
ing procedure is being followed. (P. 246)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.