LEXUS RC350 2018 Owners Manual

4316-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
6
Maintenance and care
■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. 432)
●If the replaced fuse blows again, have th e 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 Lexus products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e 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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus dealer as
soon as possible.

4326-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
Check the wattage of the light bulb to be replaced. ( P. 553)
Light bulbs
You may replace the following bulbs by yo urself. 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

4336-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
6
Maintenance and care
■Front
■Rear
Bulb locations
Front turn signal light (bulb type)1
Back-up light
Rear turn signal light1
2

4346-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
■Front turn signal lights (bulb type)
To ensure enough space to per-
form work, turn the steering
wheel to move the front wheel
toward the bulb to be replaced.
Remove the fender liner clip.
To remove the clip , turn the head of
the clip to unlock it, then pull it out.
Disengage the fender liner from
the clamp then pull it back.
Turn the bulb base counterclock-
wise.
Replacing light bulbs
1
2
3

4356-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
6
Maintenance and care
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.
Engage the clamp to reinstall the
fender liner and install the clip.
Insert the clip with its groove aligned
vertically to install it.
4
5
6

4366-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
■Rear turn signal lights
Open the trunk, remove the 2
covers and 2 screws and pull the
light unit toward the rear of the
vehicle to remove it.
When removing the cover, wrap the
tip of the screwdriver with tape to
protect the vehicle from damage.
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 rear turn signal light to visually
check that there is no light leaking
from the bulb base.
1
2
3
4

4376-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
6
Maintenance and care
Align the tabs and push the light
unit toward the front of the vehicle
to install it.
Install the 2 screws and 2 covers.5
6

4386-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
■Back-up lights
Open the trunk, remove the 2
clips on the side which the bulb is
to be replaced and pull back the
trunk lid cover.
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 back-up light to visually check
that there is no li ght leaking from the
bulb base.
Reinstall the trunk lid cover with the 2 clips.
To install the clips, simply push them in.
1
2
3
4
5

4396-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
6
Maintenance and care
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlights
●Parking lights and daytime running lights
●Front turn signal lights (LED type)
●Front fog lights (if equipped)
●Side marker lights
●Side turn signal lights
●Stop/tail lights
●Stop lights
●High mounted stoplight
●License plate lights
■LED lights
The lights other than the front turn signal ligh ts (bulb type), rear turn signal lights and
back-up lights each consist of a number of LEDs. If any of the LEDs burn out, take your
vehicle to your Lexus dealer 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 your Lexus dealer for mo re 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
P. 431

4406-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replac e 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 bu lb with bare hands. When it is unavoid-
able 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 sc ratched 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 th e headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
■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.