2018 Lexus IS350 Owner's Manual / LEXUS 2018 IS300,IS350 OWNER'S MANUAL (OM53E34U)

5057-3. Do-it-yourself maintenance
7
Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Check the wattage of the light bulb to be replaced. ( →P. 595)
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
Bulb locations
Front turn signal light
Rear turn signal light1
2

5067-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Front turn signal lights (bulb type)
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.
Replacing light bulbs
1
2
3
4
5

5077-3. Do-it-yourself maintenance
7
Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Rear turn signal lights
Open the trunk, and remove the
cover.
Remove the 2 screws.
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.
1
2
3
4

5087-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
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.
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 cover.
5
6
7
8

5097-3. Do-it-yourself maintenance
7
Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■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
●Side marker lights
●Side turn signal lights
●Outer foot lights
●Stop/tail lights
●Tail lights
●Back-up light
●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
outer foot 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 the front turn signal lights (bulb type)
When the washer fluid filler opening is remo ved with a large amount of washer fluid con-
tained in the washer tank, washer fluid ma y spill onto the vehicle and cleaning may be
required.
■When replacing light bulbs
→ P. 504

5107-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
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.

511
When trouble arises8
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
8-1. Essential information
Emergency flashers ................... 512
If your vehicle has to be stopped in an emergency..... 513
8-2. Steps to take in an emergency
If your vehicle needs to be towed ............................................ 514
If you think something is wrong ...........................................520
Fuel pump shut off system ....... 521
If a warning light turns on or a warning buzzer sounds..... 522
If a warning message is displayed..................................... 529
If you have a flat tire ..................556
If the engine will not start ........ 567
If the electronic key does not operate properly ............. 569
If the vehicle battery is discharged ................................. 572
If your vehicle overheats ......... 576
If the vehicle becomes stuck ............................................ 580

512
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
8-1. Essential information
Press the switch.
All the turn signals will flash.
To turn them off, press the switch once
again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating, the
battery may discharge.
Emergency flashers
The emergency flashers are used to warn other drivers when the vehicle has
to be stopped in the road due to a breakdown, etc.