Lexus IS250 2015 Audio menu screen operation /

4417-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
Turn the engine switch off.
Open the Fuse box cover.
Engine compartment (type A fuse box)
Push the tab in and lift the lid off.
Engine compartment (type B fuse box)
Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.
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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4427-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
Remove the fuse with the pullout
tool.
Only type A fuses can be removed
using the pullout tool.
Check if the fuse is blown. Normal fuse
Blown fuse
Type A and 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.
Ty p e C a n d D :
Contact your Lexus dealer.
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Ty p e ATy p e B
Ty p e CTy p e D

4437-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
■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. 444)
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■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 Le xus 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 rati ng 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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determ ined and repaired by your Lexus dealer as
soon as possible.

4447-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
Check the wattage of the light bulb to be replaced. ( P. 5 2 1 )
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement

4457-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
■Front
■Rear
Bulb locations
Vehicles with discharge head-
lightsVehicles with LED headlights
Front turn signal light
Back-up light
Rear turn signal light1
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4467-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
■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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4477-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
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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4487-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
■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, insta ll the washer fluid filler opening to its
original position.
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4497-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
■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 un it 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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4507-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
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 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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