Turn signal Lexus IS350 2021 / LEXUS 2021 IS 300, IS 350 (OM53E98U) Owner's Guide

3226-3. Do-it-yourself maintenance
Front turn signal light (bulb type)
Rear turn signal light
■Replacing the following bulbs
If any of the lights listed below has
burnt out, have it replaced by your
Lexus dealer.
 Headlight
 Parking lights and daytime running
lights
 Front turn signal lights (LED type)
 Side marker lights
 Side turn signal 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
lights (bulb type) and rear turn signal 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 indi-
cate a malfunction. Contact your Lexus
dealer for more 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.319
Bulb locations
A
B

3236-3. Do-it-yourself maintenance
6
Maintenance and care
■Front turn signal lights (bulb type)
1 For the left side only: Pinch the clip
to remove the washer fluid filler
opening.
2 Turn the bulb base counterclock-
wise.
3 Remove the light bulb.
4 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.
5 After replacing the left side bulb,
install the washer fluid filler opening
to its original position.
■Rear turn signal lights
1 Open the trunk and apply protec-
tive tape to the vehicle body around
the light unit.
Use masking tape, etc. Do not use duct
tape, as it may leave residue or damage the
paint when removed.
2Insert a flathead screw-driver
between the cover and the light unit
and pry up the cover in several
positions as shown in the illustration
to disengage the claws (indicated
by a dotted line).
To prevent scratching the vehicle, wrap the
tip of the flathead scre wdriver with a cloth,
Replacing light bulbs

3256-3. Do-it-yourself maintenance
6
Maintenance and care
by inserting it and turning it clock-
wise.
9 Install the light unit.
Align the tabs and push the light unit
toward the front of the vehicle to install it.
10Install the 2 bolts. 11
Install the cover.
12 Remove the protective tape.
■When replacing the front turn signal
lights (bulb type)
When the washer fluid filler opening is
removed with a large amount of washer
fluid contained in the washer tank, washer
fluid may spill onto the vehicle and cleaning
may be required.
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to
replace 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 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 he adlight unit. This
may damage the headlights or cause
condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and
locked.

3287-1. Essential information
7-1.Essential information
Press the switch to flash all of the turn
signal lights.
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 operat-
ing, the battery may discharge.
●If any of the SRS airbags deploy (inflate)
or in the event of a strong rear impact, the
emergency flashers will turn on automati-
cally.
The emergency flashers will turn off auto-
matically after operating for approxi-
mately 20 minutes. To manually turn the
emergency flashers off, press the switch
twice.
(The emergency flashers may not turn on
automatically depending on the force of
the impact and conditions of the colli-
sion.)
1 Steadily step on the brake pedal
with both feet and firmly depress it.
Do not pump the brake pedal repeatedly
as this will increase the effort required to
slow the vehicle.
2Shift the shift lever to N.
If the shift lever is shifted to N
3 After slowing down, stop the vehi-
cle in a safe place by the road.
4 Stop the engine.
If the shift lever cannot be shifted to
N
3 Keep depressing the brake pedal
with both feet to reduce vehicle
speed as much as possible.
4 To stop the engine, press and hold
the engine switch for 2 consecutive
Emergency flashers
The emergency flashers are used to
warn other drivers when the vehicle
has to be stopped on the road due
to a breakdown, etc.
Operating instructions
If your vehicle has to be
stopped in an emergency
Only in an emergency, such as if it
becomes impossible to stop the
vehicle in the normal way, stop the
vehicle using the following proce-
dure:
Stopping the vehicle

3818-1. Specifications
8
Vehicle specifications
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*: Light bulbs not listed in this table are LED bulbs.
Light bulbs*
Light bulbsBulb No.WType
ExteriorFront turn signal lights (bulb type)WY21W21A
Rear turn signal lights21A
Interior
Door courtesy lights1685B
Vanity lights8B
Footwell lights1943.8B
Trunk light5B

3998-2. Customization
8
Vehicle specifications
■Turn signal lever (P.142)
*1: After flashing the turn signal lights when turnin g left or right while this function is off and
the turn signal lever is moved to the first positi on in the direction of the flashing light, the
turn signal lights can be sele cted to be flashing or off.
*2: The turn signal lights keep flashing if the turn signal lever is moved to the first position in
the direction of flashing light.
*3: The turn signal lights will be off if the turn si gnal lever is moved to the first position in the
direction of flashing light.
■Automatic light control system ( P.149)
■Lights ( P.149)
*: U.S.A. only
■PCS (Pre-Collision System) ( P.170)
FunctionDefault settingCustomized setting
The number of times the turn
signal lights flash automati-
cally when the turn signal
lever is moved to the first
position during a lane
change
*1
3
5
——O
7
Off*2
Off*3
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before head-
lights automatically turn off
after doors are closed
30 seconds
Off
O—O60 seconds
90 seconds
FunctionDefault settingCustomized setting
Daytime running lights*OnOffO—O
FunctionDefault settingCustomized setting
PCS (Pre-Collision System)OnOff—O—
Adjust alert timingMiddleEarly—O—Late
ABC
ABC
ABC
ABC

4038-2. Customization
8
Vehicle specifications
■Seat belt reminder (P.340)
■Vehicle customization
●When the smart access system with
push-button start is off, the entry unlock
function cannot be customized.
●When the doors remain closed after
unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in
accordance with the operation buzzer
volume and operational signal (Emer-
gency flashers) function settings.
●Some settings can be changed using a
switch or the audio system screen. If a
setting is changed using a switch, the
changed setting will not be reflected on
the audio system screen until the engine
switch is turned of f and then to IGNI-
TION ON mode.
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff——O
ABC

424Alphabetical Index
Hood................................................................ 293
How to start the engine............................134
Identification number ............................... 373
If the engine will not start ....................... 357
If your vehicle has to be stopped in an
emergency ................................................ 328
Ignition switch (engine switch) ............. 134
Overheating.................................................365
Tachometer ............................................... 71, 72
Engine coolant Capacity ......................................................... 376
Checking .......................................................298
Preparing and checking before winter......................................................................... 243
Engine coolant temperature gauge . 71, 72
Engine immobilizer system ........................ 60
Engine oil Capacity ......................................................... 374
Checking ....................................................... 296
Preparing and checking before winter......................................................................... 243
Warning light ...............................................338
Engine oil maintenance data .................. 298
Engine oil pressure gauge .......................... 80
Engine oil temperature gauge .................. 80
Engine switch ..................................................134 Auto power off function ...........................136
Changing the engine switch modes..136
If your vehicle has to be stopped in an
emergency ................................................ 328
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 238
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 238
EPS (Electric Power Steering) .............. 238 Warning light ...............................................340
Event data recorder (EDR) ............................7
F
First-aid kit storage belt ............................ 268
Flat tire Tire pressure warning system ............ 305 Vehicles with a spare tire.......................349
Floor mats ...........................................................22
Fluid Automatic transmission .......................... 377
Brake ................................................................378
Washer ...........................................................302
Footwell lights ............................................... 263 Wattage ........................................................... 381
Front passenger occupant classification system .............................................................. 36
Front seats Adjustment ..................................................... 106
Cleaning .........................................................283
Correct driving posture ............................ 23
Driving position memory ........................ 108
Head restraints................................................. 111
Memory recall function............................ 109
Power easy access system .................... 108
Seat heaters ....................................................261
Seat position memory ..............................108
Seat ventilators ..............................................261
Front side marker light Light switch .................................................... 149
Replacing light bulbs ................................ 322
Front turn signal lights Replacing light bulbs .................... 322, 323
Turn signal lever ...........................................142
Wattage ........................................................... 381
Fuel Capacity ......................................................... 374
Fuel gauge ..................................................71, 72
Fuel pump shut off system.....................336
Information ....................................................382
Refueling............................................................ 161
Type .................................................................. 374
Warning light .............................................. 340
Fuel consumption Average fuel economy .............................. 79
Current fuel consumption ........................ 79
Fuel filler door If the fuel filler do or cannot be opened
......................................................................... 359

426Alphabetical Index
KeysBattery-saving function ........................... 100
Electronic key .................................................88
Engine switch................................................. 134
If the electronic key does not operate properly.......................................................359
If you lose your keys................................ 358
Key number plate .........................................88
Keyless entry .......................................... 92, 99
Mechanical key..............................................88
Replacing the battery.................................316
Warning buzzer ............................................ 99
Wireless remote control........................... 90
Knee airbags .................................................... 28
L
Lane Tracing Assist (LTA) Operation....................................................... 180
Warning messages ................................... 189
Language (multi-information display) ... 82
LATCH anchors ............................................. 49
Lever Auxiliary catch lever ................................. 293
Hood lock release lever......................... 293
Internal trunk release lever ...................... 98
Shift lever......................................................... 138
Turn signal lever ........................................... 142
Wiper lever.....................................................154
Lexus Enform Safety Connect.................. 54
Lexus Safety System + 2.5 AHB (Automatic High Beam)............... 151
Dynamic radar cruise control with full-speed range ........................................ 192
LTA (Lane Tracing Assist)..................... 180
PCS (Pre-Collision System)..................170
RSA (Road Sign Assist) .......................... 189
License plate lights Light switch .....................................................149
Replacing light bulbs................................ 322
Light bulbs Replacing ......................................................... 321 Lights
Automatic High Beam system ............... 151
Front interior lights ....................................263
Front personal lights................................. 264
Headlight switch.......................................... 149
Interior lights .................................................263
Interior lights list ..........................................263
Rear interior lights .....................................263
Rear personal lights .................................. 264
Replacing light bulbs ................................ 322
Trunk lid light................................................... 97
Trunk light ......................................................... 97
Turn signal lever ...........................................142
Vanity lights .................................................... 271
Wattage ........................................................... 381
Lock steering column ..................................134
LTA (Lane Tracing Assist) Operation .......................................................180
Warning messages.................................... 189
Luggage mats ............................................... 268
M
Maintenance Do-it-yourself maintenance ...................291
General maintenance ............................. 287
Maintenance data ...................................... 372
Maintenance requirements ................. 286
Malfunction indicator lamp ..................... 338
Menu icons......................................................... 77
Meter Changing the main meter location...... 74
Clock.............................................................71, 72
Indicators...........................................................68
Instrument panel light control................. 75
Meter control switches ...............................77
Meters................................................................... 71
Multi-information display .......................... 76
Settings............................................................... 82
Warning lights ............................................. 337
Warning message .....................................346
Micro dust and pollen filter ..................... 258

428Alphabetical Index
Parking Support Brake function (for rear-crossing vehicles) .......................... 232Function .......................................................... 232
Parking Support Brake function (static objects) ......................................................... 226Function .......................................................... 226
PCS (Pre-Collision System) Function ............................................................170
PCS OFF switch .......................................... 173
Warning light ............................................... 342
Personal lights............................................... 263
PKSA (Parking Support Alert) ..............208
PKSB (Parking Support Brake)............... 221 Warning message..................................... 225
Power easy access system ....................... 108
Power outlets .................................................. 271
Power steering (Elect ric power steering
system).......................................................... 238 Warning light ...............................................340
Power window switch lights .................... 263
Power windows Door lock linked window operation... 119
Jam protection function............................. 118
Operation......................................................... 118
Window lock switch ................................... 119
Pre-Collision System (PCS) Function ............................................................170
PCS OFF switch .......................................... 173
Warning light ............................................... 342
R
Radar cruise control (dynamic radar cruise control with full-speed range)...............192
Radiator ...........................................................300
RCTA Function ............................................................ 216
Warning message....................................... 217
RCTA (Rear Cross Traffic Alert) .........208
RCTA function ............................................... 217
Rear Cross Traffic Alert (RCTA) ........... 216
Rear seats .........................................................107 Head restraints ................................................ 111 Rear side marker lights
Light switch .................................................... 149
Rear sunshades .............................................272
Rear turn signal lights Replacing light bulbs .................... 322, 323
Turn signal lever ...........................................142
Wattage ........................................................... 381
Rear view mirror Inside rear view mirror ............................... 114
Outside rear view mirrors........................ 116
Rear window defogger ............................. 255
Refueling Capacity ......................................................... 374
Fuel types ....................................................... 374
If the fuel filler do or cannot be opened
......................................................................... 359
Opening the fuel tank cap ....................... 161
Remote Touch .............................................. 248
Replacing Electronic key battery ............................... 316
Fuses.................................................................. 318
Light bulbs .......................................................321
Tires ..................................................................349
Resetting the message indicating mainte- nance is required ...................................... 286
Rev indicator .....................................................73
Rev peak..............................................................74
Road Sign Assist ........................................... 189
RSA (Road Sign Assist) ............................. 189
S
Seat belt reminder light............................. 340
Seat belts............................................................ 24 Automatic Locking Retractor................. 26
Child restraint system installation ......... 42
Cleaning and maintaining the seat belt..........................................................................283
Emergency Locking Retractor .............. 26
How to wear your seat belt ..................... 25
How your child should wear the seat belt ............................................................................. 25