2020 Lexus IS350 interior lights

4657-2. Maintenance
7
Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
Vehicle interior
ItemsCheck points
Accelerator pedal• The accelerator pedal should move smoothly (with-
out uneven pedal effort or catching).
Automatic transmission
“Park” mechanism• When parked on a slope and the shift lever is in P, is the vehicle securely stopped?
Brake pedal
• Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clearance
from the floor? ( P. 594)
• Does the brake pedal have the correct amount of
free play? ( P. 594)
Brakes
• The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should no t get too close to the floor
when the brakes are applied.
Head restraints• Do the head restraints move smoothly and lock
securely?
Indicators/buzzers• Do the indicators and buzzers function properly?
Lights• Do all the lights come on?
Parking brake
• Moves smoothly?
• When parked on a slope and the parking brake is on,is the vehicle securely stopped?
Seat belts• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount offree play?
• There should not be any strange sounds coming from the steering wheel.

5708-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
( P. 186)
●There may be a malfunction in th e engine immobilizer system. (P. 76)
One of the following may be the cause of the problem:
●The battery terminal connections may be loose or corroded.
●The battery may be discharged. ( P. 575)
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletio n or a blown fuse. However, an interim
measure is available to start the engine. ( P. 571)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed ( P. 186), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

5718-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (P. 575)
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle in spected by your Lexus dealer.
The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4

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.

6209-2. Customization
IS350 AWD/IS350/IS300 AWD/IS300_U
■Illumination ( P. 428)
■Seat belt reminder ( P. 527)
FunctionDefault settingCustomized setting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation after the engine
switch is turned offOnOff—O
Operation when the doors are
unlockedOnOff—O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff—O
Inside door handle lightsOnOff—O
Time elapsed before the outer
foot lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person
OnOff—O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switch
OnOff—O
12
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff—O
12

642Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Back-up lightsReplacing light bulbs ........................... 511
Battery....................................................... 482 Battery checking ................................482
If the vehicle battery is discharged.....................................575
Preparing and checking before winter ................................................... 306
Warning light ...................................... 525
Bluetooth
®
Audio system .......................................370
Hands-free system (for cellular phone) ..........................371
Bottle holders ......................................... 433
Brake Fluid............................................................ 481
Parking brake...................................... 200
Warning light ...................................... 525
Brake assist .............................................. 301
Break-in tips.............................................. 174
Brightness control Instrument panel light control ......... 92
BSM (Blind Spot Monitor)................ 285 BSM function ...................................... 289
RCTA function .................................... 292 Care................................................454, 458
Aluminum wheels ..............................455
Exterior ................................................... 454
Interior .....................................................458
Seat belts................................................ 459
Cargo capacity .......................................183
Cargo hooks .......................................... 435
CD player.................................................344
Chains ....................................................... 307
Child restraint system ........................... 53 Booster seats, definition .................... 54
Booster seats, installation ................. 63
Convertible seats, definition ........... 54
Convertible seats, installation......... 60
Front passenger occupant classification system......................... 46
Infant seats, definition.......................... 54
Infant seats, installation....................... 60
Installing CRS with LATCH anchors ..................... 58
Installing CRS with seat belts ......... 60
Installing CRS with top tether strap......................... 64
BC

647Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Hands-free system (for cellular phone) ............................. 371
HD Radio
® system .............................. 338
Head restraints ........................................152
Headlights ............................................... 202 AFS (Adaptive Front-lighting System) ............................................... 203
Light switch ...........................................202
Replacing light bulbs ........................... 511
Headlights cleaner................................ 210
Heaters Air conditioning system ....................417
Heated steering wheel ....................426
Outside rear view mirrors ............. 422
Seat heaters .......................................... 427
Hill-start assist control ......................... 301
Hood .......................................................... 470 Open ........................................................470
Hooks Cargo hooks ........................................435
Coat hooks ............................................ 441
Retaining hooks (floor mat) ............. 26
Horn .............................................................156 I/M test ...................................................... 467
Identification
Engine .................................................... 588
Vehicle .................................................... 587
Ignition switch (engine switch) .........186
Illuminated entry system ....................429
Immobilizer system ................................. 76
Indicators .................................................... 86
Initialization Engine oil maintenance data ........477
Maintenance ........................................ 462
Moon roof .............................................. 168
Multi-information display................ 103
Power windows....................................163
Tire pressure warning system ............................... 487
Initiators (tire pressure warning system) ................................ 493
Inside door handle lights ................... 428
Inside rear view mirror......................... 157
Instrument panel light control .............92
Intercooler .............................................. 480
Intercooler coolant...............................478 Capacity................................................. 592
Checking ............................................... 478
Preparing and checking before winter ....................................306
Interior lights ...........................................429 Wattage ................................................. 597
Intuitive parking assist ........................ 260
HI

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”.