Page 387 of 620
3875-3. Using the interior lights
5
Interior features
GS450h_300h_OM_OM30F00E_(EE)
Turns the lights on/off
The rear interior light is also turned on/
off.
Turns the door position on/off
■Front
Turns the light on/off
■Rear
Turns the light on/off
Interior lights
1
2
Personal lights
Page 388 of 620
3885-3. Using the interior lights
GS450h_300h_OM_OM30F00E_(EE)
●Illuminated entry system: The lights automatically turn on/off according to power switch
mode, the presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
●If the interior lights remain on when the power switch is turned off, the lights will go off
automatically after 20 minutes.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 5 8 1 )
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than necessary
when the hybrid system is off.
Page 391 of 620
3915-4. Using the storage features
5
Interior features
GS450h_300h_OM_OM30F00E_(EE)
●The console box light turns on when the tail lights are on.
■Front
To open, press down and release the
cup holder lid.
■Rear
To open, pull down the armrest and
press in and release the rear cup
holder on the armrest.
●The tray slides forward/backward and can be
removed.
WA R N I N G
When using the console box with half-open, do not apply too much load on the arm-
rest. Doing so may damage the armrest and may cause you to injure yourself.
Cup holders
Page 397 of 620
397
5
5-5. Using the other interior features
Interior features
GS450h_300h_OM_OM30F00E_(EE)
Other interior features
To set the visor in the forward posi-
tion, flip it down.
To set the visor in the side position,
flip down, unhook, and swing it to the
side.
To use the side extender, place the
visor in the side position, then slide it
backward.
Slide the cover to open.
The light turns on when the cover is
opened.
Sun visors
1
2
3
Vanity mirrors
NOTICE
To prevent 12-volt battery discharge, do not leave the vanity lights on for extended peri-
ods while the hybrid system is off.
Page 543 of 620

543
7
7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (
→P. 549)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( →P. 8 4 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioning due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim measure is available to start the hybrid sys-
tem. ( →P. 544)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 5 5 1 )
●The 12-volt battery terminal connections may be loose or corroded.
(→ P. 4 2 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 5 5 1 )
●One or both of the 12-volt battery terminals may be disconnected. ( →P. 4 2 8 )
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair procedures are
unknown.
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( →P. 217)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.
The interior lights and he adlights do not turn on, or the horn does not
sound.
Page 578 of 620
5788-1. Specifications
GS450h_300h_OM_OM30F00E_(EE)
Light bulbs
Light bulbsWTy p e
ExteriorFront turn signal lights*21A
Outer foot lights5B
InteriorVanity lights8B
Trunk light3.8B
A: Wedge base bulbs (amber) B: Wedge base bulbs (clear)
*: Vehicles with single-beam headlights
Page 593 of 620
593
8
8-2. Customization
Vehicle specifications
GS450h_300h_OM_OM30F00E_(EE)
■Illumination (
→P. 3 8 6 )
FunctionDefault
settingCustomized setting
Interior lights illumination con-
trolOnOff——O
Time elapsed before the inte-
rior lights turn off15 seconds7. 5 s e c o n d sO—O30 seconds
Operation after the power
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 (vehicles
with entry function)
OnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
Time elapsed before the outer
foot lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
30 seconds
Enable/disable operation of the
outer foot lights when you
approach the vehicle with the
electronic key on your person
OnOff——O
Enable/disable operation of the
outer foot lights when the doors
are unlocked with the power
door lock switch
OnOff——O
123
Page 609 of 620

609Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
HooksCargo hooks........................................394
Coat hooks ...........................................402
Luggage hook..................................... 394
Retaining hooks (floor mat)............. 34
Horn ............................................................ 186
Hybrid battery (traction battery) Location..................................................... 79
Specification ........................................ 569
Hybrid battery (traction battery)
air vents.................................................... 80
Hybrid system ........................................... 75
Emergency shut off system..............80
Energy monitor/consumption screen.......................126
EV drive mode ................................... 222
High voltage components ............... 79
Hybrid System Indicator ................. 108
Hybrid system precautions.............. 79
Hybrid vehicle driving tips ............. 351
If the hybrid system will not start .......................................543
Overheating ........................................ 556
Power (ignition) switch ..................... 217
Regenerative braking ......................... 76
Starting the hybrid system............... 217
Hybrid System Indicator .....................108
Hybrid transmission............................. 224 If the shift lever cannot be shifted from P ...................................545
Paddle shift switches ........................ 226
S mode.....................................................227 Identification ........................................... 567
Engine .....................................................568
Vehicle.................................................... 567
Ignition switch (power switch) .......... 217 Auto power off function ................... 219
Changing the power switch modes.................................................... 218
If your vehicle has to be stopped in an emergency ......... 469
Starting the hybrid system .............. 217
Illuminated entry system....................388
Immobilizer system................................. 84
Indicators .................................................... 101
Initialization Items to initialize ................................. 596
Moon roof............................................... 197
Power windows ................................... 194
Tire pressure warning system.................................................. 434
Initiators (tire pressure warning system)................................................... 443
Inside door handle lights ................... 386
Inside rear view mirror ........................ 188
Instrument panel light control ...........107
Interior lights........................................... 386
Intrusion sensor and tilt sensor .......... 93
ISOFIX rigid anchors ............................ 65I
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.