2020 Lexus IS350 turn signal

5117-3. Do-it-yourself maintenance
7
Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
■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)
●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. 506

514
IS350 AWD/IS350/IS300 AWD/IS300_U8-1. 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.

5979-1. Specifications
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
Light bulbs*
Light bulbsBulb No.WType
Exterior
Front turn signal lights (bulb type)7444NA28/8A
Rear turn signal lights21A
Outer foot lights5B
Interior
Door courtesy lights1685B
Vanity lights8B
Interior light8B
Personal lights8B
Footwell lights1943.8B
Trunk light5B
A: Wedge base bulbs (amber)B: Wedge base bulbs (clear)
*: Light bulbs not listed in this table are LED bulbs.

6189-2. Customization
IS350 AWD/IS350/IS300 AWD/IS300_U
■Turn signal lever ( P. 198)
*1: After flashing the turn signal lights when turn ing left or right while this function is off
and the turn signal lever is moved to the first position in the direction of the flashing
light, the turn signal lights can be selected to be flashing or off.
*2: The turn signal lights keep flashing if the tu rn 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 signal lever is moved to the first position in
the direction of flashing light.
■Automatic light control system ( P. 202)
■Lights ( P. 202)
*: U.S.A. only
FunctionDefault settingCustomized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change
*1
3
5
—O7
Off*2
Off*3
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off after doors
are closed
30 seconds
Off
OO60 seconds
90 seconds
12
FunctionDefault settingCustomized setting
Daytime runnin g light system*OnOffOO
12

6219-2. Customization
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
■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 activated auto-
matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational si gnal (Emergency flashers) function set-
tings.
●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 off and then to IGNITION ON mode.
WARNING
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.

646Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
First-aid kit storage belt ..................... 435
Flat tire ...................................................... 559
Floor mats ................................................... 26
FluidAutomatic transmission ................. 593
Brake ....................................................... 594
Washer .................................................. 484
Footwell light .......................................... 428 Wattage ..................................................597
Front passenger occupant classification system ............................ 46
Front personal lights............................ 429 Wattage ..................................................597
Front seats .................................................143 Adjustment ............................................. 143
Cleaning ................................................ 458
Correct driving posture .................... 28
Driving position memory .................147
Head restraints ..................................... 152
Power easy access system .............147
Seat heaters .......................................... 427
Seat position memory........................147
Seat ventilators .................................... 427
Front turn signal lights ......................... 198 Replacing light bulbs ....................... 508
Turn signal lever .................................. 198
Wattage ..................................................597 Fuel............................................................... 218
Capacity................................................ 589
Fuel gauge ............................................... 89
Fuel pump shut off system ............ 524
Information........................................... 598
Refueling ..................................................218
Type......................................................... 589
Warning light ....................................... 527
Fuel consumption Average fuel economy .............................. 112, 113, 115
Current fuel consumption....................... 112, 113, 115
Fuel filler door.......................................... 218 If the fuel filler door cannot be opened ......................... 220
Refueling ..................................................218
Fuel gauge ................................................. 89
Fuel pump shut off system .................524
Fuses.......................................................... 504
Garage door opener...........................442
Gauges........................................................ 89
Gear positions......................................... 195
Glove box ................................................432
Glove box light.......................................432
F
G

648Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
JackPositioning a floor jack ......................471
Vehicle-equipped jack .................. 560
Jack handle ............................................. 560
Jam protection function Moon roof ...............................................167
Power windows ................................... 163
Keyless entry Smart access system with push-button start ......... 124, 130
Wireless remote control ....... 124, 130
Keys............................................................... 118 Battery-saving function .....................137
Electronic key ......................................... 118
Engine switch ........................................ 186
If the electronic key does not operate properly ........ 572
Key number plate ................................. 118
Keyless entry ........................................... 118
Mechanical key ...................................... 119
Replacing the battery ...................... 502
Warning buzzer .................................. 125
Wireless remote control ................... 118
Knee airbags ............................................. 36 Lane Departure Alert with
steering control (LDA) ................... 240
Language (multi-information display)..............103
LATCH anchors ...................................... 58
LDA (Lane Departure Alert with steering control) ...................... 240
Lever Auxiliary catch lever ......................... 470
Hood lock release lever................. 470
Internal trunk release lever ............. 132
Shift lever .................................................. 191
Tilt and telescopic steering lock release lever ............................ 155
Turn signal lever .................................. 198
Wiper lever.............................................210
Lexus Display Audio controller ....... 314
Lexus Display Audio system ............. 312
Lexus Enform
*
Lexus Enform Remote*........................ 74
Lexus Enform Safety Connect ........... 75
Lexus parking assist monitor
*.........269
Lexus Safety System + ........................222 Automatic High Beam....................206
Dynamic radar cruise control ..... 248
LDA (Lane Departure Alert with steering control) ................... 240
PCS (Pre-Collision System) ....... 229
J
K
L

649Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
License plate lights............................... 202Light switch ...........................................202
Replacing light bulbs ........................... 511
Light bulbs Replacing .............................................. 507
Wattage ..................................................597
Lights Headlight switch.................................202
Illuminated entry system ................ 459
Interior light ...........................................429
Interior lights list ..................................428
Personal lights .....................................429
Replacing light bulbs ....................... 507
Trunk light ................................................132
Turn signal lever .................................. 198
Vanity lights .......................................... 437
Wattage ..................................................597
Lock steering column .......................... 188
Low profile tire.......................................488
Luggage security system...................... 131 Maintenance
Do-it-yourself maintenance .........468
General maintenance ..................... 464
Maintenance data............................. 586
Maintenance requirements ............461
Malfunction indicator lamp .............. 525
Master warning light ............................527
Meter Changing the display ......................... 92
Indicators .................................................. 86
Instrument panel light control ........ 92
Meters ........................................................ 89
Multi-information display.................. 94
Warning lights........................................ 85
Micro dust and pollen filter ................ 421
Mirrors Inside rear view mirror...................... 157
Outside rear view mirror defoggers........................................... 422
Outside rear view mirrors ..............159
Vanity mirrors ..................................... 437
MMS (Multimedia messaging service).................................................. 380
Mobile Assistant ..................................... 319M
*: For vehicles with a naviga tion system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.