Page 499 of 628
4857-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
Front turn signal lights (vehicles with LED headlights)
For the left side only: Pinch
the clip to remove the washer
fluid filler opening.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
Install a new light bulb then
install the bulb base to the
light unit by inserting it and
turning the bulb base clock-
wise.
After installing the light bulb,
turn on the front turn signal light
to visually check that there is no
light leaking from the bulb base.
After replacing the left side bulb, install the washer fluid filler open-
ing to its original position.
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2
3
4
5
Page 500 of 628
4867-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
Rear turn signal lights
Open the trunk, and remove
the 2 covers and 2 screws.
When removing the cover, wrap
the tip of the screwdriver with
tape to protect the vehicle from
damage.
Push and pull the light unit
toward the rear of the vehicle
as shown in the illustration to
remove it.
Apply protective tape to the
peripheral of the light unit instal-
lation surface on the vehicle body,
such as the rear bumper, to protect
the vehicle from damage.
Pushing on the portion A in the
illustration toward the rear of the
vehicle will make disengagement
of the tabs easier.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
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2
3
4
Page 501 of 628
4877-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
Install a new light bulb then
install the bulb base to the
light unit by inserting it and
turning the bulb base clock-
wise.
After installing the light bulb,
turn on the rear turn signal light to
visually check that there is no
light leaking from the bulb base.
Align the tabs and push the
light unit toward the front of
the vehicle to install it.
Remove the protective tape
applied to the peripheral of the
light unit installation surface on
the vehicle body.
Install the 2 screws and 2 covers.
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6
7
Page 502 of 628
4887-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
Back-up light
Open the trunk, remove the 3
clips on the side which the
bulb is to be replaced and pull
back the trunk lid cover.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
Pull out the connector carefully,
ensuring that excessive pulling
load is not applied to the wire har-
ness.
Install a new light bulb then
install the bulb base to the
light unit by inserting it and
turning the bulb base clock-
wise.
After installing the light bulb,
turn on the back-up light to visu-
ally check that there is no light
leaking from the bulb base.
Reinstall the trunk lid cover with the 3 clips.
To install the clips, simply push them in.
1
2
3
4
5
Page 504 of 628
4907-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
Remove the 5 screws and take
off the mirror’s outer cover
and the cover behind the mir-
ror.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
Install a new light bulb then
install the bulb base to the
light unit by inserting it and
turning the bulb base clock-
wise.
When inserting the socket, align
the marks printed on the light
body and the socket.
4
5
6
7
Page 505 of 628
4917-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
Install the visor cover on the
mirror frame, secure it with a
screw, and install the side turn
signal light and outer foot
light.
Use only the screw position
shown in the illustration.
Align the tabs on the side turn
signal light unit and the cover and
install it.
Interlock the groove of the outer
foot light unit with the tabs on the
cover and secure it.
After installing the outer foot
light unit, turn on the outer foot
light to visually check that there
is no light leaking from the bulb
base.
Disconnect the tabs, and sepa-
rate the top and bottom of the
outer cover of the mirror.
8
9
Page 508 of 628

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
Page 516 of 628
5028-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
Do not tow with a sling-type truck
to prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels.Turn the power switch to ACCES-
SORY mode so that the steering
wheel is unlocked.