headlights Lexus GS300h 2013 Owner's Guide

4354-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Before using the Lexus night view
Never depend on this system only.
Lexus night view is intended as a supplemental aid to help you see pedestri-
ans and road conditions ahead of the vehicle. As there are limits to the sys-
tem, do not rely solely on the system while in use, and drive safely while
observing the following precautions.
When using the Lexus night view
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
Never drive while looking at the Lexus night view screen only.
Do not look continuously at the Lexus night view screen while driving.
Pedestrians, objects etc. ahead of the vehicle may be overlooked by the
system. The system should always be used as a supplemental aid only.
Lexus night view is designed to help you see objects better when driving
in darkness on a road with few curves. Do not use the Lexus night view in
well-lit areas or on roads with many curves or slopes. There may be areas
that cannot be displayed by the system due to the road conditions (curve
size, gradient, etc.)
Lexus night view may be unable to project some features at an appropriate
level of brightness. Some or all parts of certain features may be dark or
difficult to see. Do not rely solely on the Lexus night view, and drive care-
fully while checking the surroundings for safety, as you would with a nor-
mal vehicle. Also, the following features and conditions may not be
displayed clearly.
Features that are difficult to display:
• Clothing of a pedestrian made of a certain kind of material (ex. leather
jackets)
• The characters on signs and billboards
• The information on road signs
Conditions in which display is difficult:
• Unfavorable weather conditions such as rain, fog, snowfall, snow
storms etc.
• There are large puddles of water on the road surface following rainfall
• The area of the front windshield in front of the camera is fogged up,
dirty or icy
• The areas around the headlights are covered with ice, snow, mud etc.
• The 12-volt battery voltage is remarkably low
• There are bright lights ahead of the vehicle

4374-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
The near-infrared light
Follow these precautions to avoid dam-
age to or incorrect operation of the Lexus
night view system
System performance may deteriorate if
the areas around the headlights are
dirty. Clean the vehicle if it is dirty.
The near-infrared light irradiates strong
energy not visible to the eyes. Do not
stare at the light at close range for a
long time.
Vehicles with discharge
headlights
Vehicles with LED head-
lights

791 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)*
1: Low beam and high beam are the same bulb. (vehicles with discharge
headlights)
*
2: GS300h only.
49LUG J/B DC/DC80Luggage compartment junction block
50FAN NO.180Electric cooling fans
51PTC NO.150PTC heater
52PTC NO.250PTC heater
53HTR50Air conditioning system
54ABS NO.130Motor relay
55ECU-B NO.27.5Grill shutter
56DEICER25Windshield wiper de-icer
57ABS MAIN 310Brake system
58FILTER10Condenser
59A/C W/P7.5Air conditioning system
60SPARE10Spare fuse
61SPARE30Spare fuse
62SPARE20Spare fuse
FuseAmpereCircuit

803 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Light bulbs
Check the wattage of the light bulb to be replaced. (P. 939)
P. 740
Front
Vehicles with discharge headlights
You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. As there is a
danger that components may be damaged, we recommend that
replacement is carried out by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
Front turn signal light
Halogen front fog light (if equipped)1
2

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.