Lexus IS300h 2016 Owner's Manual

4917-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D56E)
Turn the power switch off.
Open the fuse box cover.
XEngine compartment:
Remove the clips.
Push the tabs on either side to
detach the lock and lift the lid off
while pulling the lock plate.
When installing the lid, check that the
lock plate and the tabs on either side
are connected correctly.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary.
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4927-3. Do-it-yourself maintenance
IS300h_EE(OM53D56E)
XLeft side instrument panel (left-hand drive vehicles)
Remove the lid.
XLeft side instrument panel (right-hand drive vehicles)
Remove the lid.
Remove the fuse with the pullout
tool.
Only type A fuses can be removed
using the pullout tool.
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4937-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D56E)
Check if the fuse is blown.Normal fuse
Blown fuse
Ty p e A a n d B :
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Type C and D:
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
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2
XTy p e AXTy p e B
XTy p e CXTy p e D

4947-3. Do-it-yourself maintenance
IS300h_EE(OM53D56E)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (→P. 4 9 5 )
●If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
■Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near the
fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as soon
as possible.

4957-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D56E)
Check the wattage of the light bulb to be replaced. (→P. 5 8 8 )
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. As there is a danger that components may
be damaged, we recommend that replacement is carried out by any autho-
rized Lexus dealer or repairer, or an other duly qualified and equipped profes-
sional.
Preparing for light bulb replacement

4967-3. Do-it-yourself maintenance
IS300h_EE(OM53D56E)
■Front
■Rear
Bulb locations
XVehicles with discharge head-
lightsXVehicles with LED headlights
Front turn signal light
Back-up light (right-hand drive vehicles)
Back-up light (left-hand drive vehicles)
Rear turn signal light
Outer foot light1
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4977-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D56E)
■Front turn signal lights (vehicles with discharge headlights)To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 2 fender liner clips.
Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel to
the right when replacing the left side
light bulb.
To take out the lower clip, turn the
head of the clip to unlock it, then
remove it by pulling.
Unfasten the clamp, and pull back
the fender liner.
When unfastening the clamp, wrap
the tip of the screwdriver with tape to
protect the vehicle from damage.
Turn the bulb base counterclock-
wise.
Replacing light bulbs
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4987-3. Do-it-yourself maintenance
IS300h_EE(OM53D56E)
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 clockwise.
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.
Reinstall the fender liner, fasten
the clamp and install the 2 clips.
Install the lower clip by inserting it
with the clip groove held vertically
straight.
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4997-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D56E)
■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 counterclock-
wise.
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 clockwise.
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 opening to its
original position.
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5

5007-3. Do-it-yourself maintenance
IS300h_EE(OM53D56E)
■Rear turn signal lightsOpen 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 periph-
eral of the light unit installation sur-
face on the vehicle body, such as the
rear bumper, to protect the vehicle
from damage.
Pushing on the portion A in the illus-
tration toward the rear of the vehicle
will make disengagement of the tabs
easier.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
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