Page 561 of 628

5478-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
One of the following may be the cause of the problem:
One or both of the 12-volt battery terminals may be disconnected.
The 12-volt battery may be discharged. (P. 551)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to start the hybrid system if the power switch is func-
tioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4
Page 587 of 628
5729-1. Specifications
IS300h_EE(OM53B95E)
Light bulbs*1
Light bulbsWType
Exterior
Discharge headlights*235A
Front fog lights (except F SPORT mod-
els)*219B
Front turn signal lights21C
Rear turn signal lights21C
Back-up lights16D
Outer foot lights5D
Interior
Door courtesy lights5D
Vanity lights8D
Interior light8D
Personal lights8D
Footwell lights3.8D
Trunk light*25D
A: D4S discharge bulbs
B: H16 halogen bulbs
C: Wedge base bulbs (amber)
D: Wedge base bulbs (clear)
*1: Light bulbs not listed in this table are LED bulbs.
*2: If equipped
Page 599 of 628
5849-2. Customization
IS300h_EE(OM53B95E)
Illumination (P. 4 1 1 )
FunctionDefault set-
tingCustomized set-
ting
Time elapsed before the
interior lights turn off15 seconds
Off
O—OO7.5 seconds
30 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
OnOff———O
Inside door handle lightsOnOff———O
Time elapsed before the
outer foot lights turn off15 seconds
Off
O—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
1234
Page 616 of 628

600Alphabetical index
IS300h_EE(OM53B95E)
Hooks
Cargo hooks ..........................417
Coat hooks ............................424
Retaining hooks (floor mat) ...34
Horn...........................................177
Hybrid battery (traction battery) .83
Hybrid battery (traction battery)
air vents .....................................84
Hybrid system .............................79
Emergency shut off system ....84
Energy monitor/
consumption screen ............122
EV drive mode......................214
High voltage components .......83
Hybrid System Indicator ......114
Hybrid system precautions .....83
Hybrid vehicle driving tips ...309
If the hybrid system
will not start .......................546
Overheating ..........................556
Power (ignition) switch ........209
Starting the hybrid system ....209
Hybrid System Indicator ...........114
Hybrid transmission ..................216
If the shift lever cannot be
shifted from P .....................548
Paddle shift switches ............218
S mode ..................................219Identification
Engine .................................. 563
Vehicle ................................. 563
Ignition switch (power switch) . 209
Illuminated entry system .......... 412
Immobilizer system .................... 90
Indicators .................................. 106
Initialization
Moon roof ............................ 189
Multi-information display.... 118
Power windows.................... 185
Tire pressure warning
system................................ 451
Inside door handle lights .......... 411
Inside rear view mirror ............. 178
Instrument panel light control .. 113
Interior lights ............................ 411
Wattage ................................ 572
Intrusion sensor and tilt sensor ... 99
ISOFIX rigid anchors ................. 70I
Page 618 of 628

602Alphabetical index
IS300h_EE(OM53B95E)
Lights
Automatic High Beam
system.................................229
Fog light switch ....................233
Follow me home system .......227
Headlight switch ...................226
Illuminated entry system ......412
Interior light..........................412
Interior lights list ..................411
Personal lights ......................412
Replacing light bulbs ............481
Trunk light ............................146
Turn signal lever ...................222
Vanity lights .........................420
Wattage .................................572
Lock steering column ................212
Low profile tire .........................453
Luggage security system ...........145
Luggage under tray....................418Maintenance
Do-it-yourself maintenance . 435
Maintenance data ................. 562
Maintenance requirements... 433
Maintenance system ................. 118
Malfunction indicator lamp ...... 507
Master warning light ................ 509
Meter
Changing the display ........... 112
Indicators ............................. 106
Instrument panel light control....
113
Meters .................................. 110
Multi-information display.... 116
Warning lights ..................... 105
Mirrors
Inside rear view mirror ........ 178
Outside rear view mirror
defoggers ........................... 404
Outside rear view mirrors .... 180
Vanity mirrors...................... 420
MirrorLink............................. 391
MMS (Multimedia messaging
service) ................................... 375M