
5849-1. Specifications
IS300h_EE(OM53D56E)
*: The fluid capacity is a reference quantity. If replacement is necessary, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Electrical system
12-volt battery
Open voltage at 20 °C
(68 °F):
12.5 V or higher: Fully charged
11.0 - 12.4 V: Half charged
10.9 V or lower: Discharged
(Check the voltage 20 minutes after the hybrid system
and all lights are turned off.)
Charging rates4 A — 5 A
Hybrid transmission
Fluid capacity*3.8 L (4.0 qt., 3.3 Imp. qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transmission accompanied by vibration, and ulti-
mately damage the hybrid transmission of your vehicle.

5889-1. Specifications
IS300h_EE(OM53D56E)
Light bulbs*1
Light bulbsWTy p e
Exterior
Discharge headlights*235A
Front turn signal lights21B
Rear turn signal lights21B
Back-up lights16C
Outer foot lights5C
Interior
Door courtesy lights5C
Vanity lights8C
Interior light8C
Personal lights8C
Footwell lights3.8C
Trunk light*25C
A: D4S discharge bulbs B: Wedge base bulbs (amber)
C: Wedge base bulbs (clear)
*1: Light bulbs not listed in this table are LED bulbs.
*2: If equipped

597
9
9-2. Customization
Vehicle specifications
IS300h_EE(OM53D56E)
■Tu r n s i g n a l l e v e r (
→P. 225)
*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 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 signal lever is moved to the first position inthe direction of flashing light.
■Automatic light control system ( →P. 2 2 9 )
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
——O7
Off *2
Off*3
123
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before head-
lights automatically turn off30 seconds
60 seconds
——O90 seconds
120 seconds
123

599
9
9-2. Customization
Vehicle specifications
IS300h_EE(OM53D56E)
■Illumination (
→P. 425)
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
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 per-
son
OnOff——O
Inside door handle lightsOnOff——O
Ti m e e l a p s e d b e f o r e t h e
outer foot lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
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
123

611Alphabetical index
IS300h_EE(OM53D56E)
Child-protectors ................................... 140
Cleaning ........................................442, 446Aluminum wheels .............................. 443
Exterior.................................................... 442
Interior .....................................................446
Seat belts................................................ 447
Clock .........................................................435
Coat hooks ..............................................439
Condenser ............................................. 462
Console box ........................................... 429
Coolant .....................................................460 Capacity ................................................ 583
Checking .............................................. 460
Preparing and checking
before winter .................................... 322
Cooling system......................................460
Engine overheating ............................571
Hybrid system overheating ............571
Cruise control Cruise control .....................................250
Dynamic radar cruise control ..... 254
Cup holders ............................................430
Current fuel consumption....................116
Curtain shield airbags ........................... 43
Customizable features ....................... 592 DAB (Digital Audio Broadcast) ..... 352
Daytime running light system ......... 230
Defogger
Outside rear view mirrors .............. 418
Rear window..........................................418
Windshield ............................................. 418
Differential............................................... 585
Digital Audio Broadcast (DAB) ..... 352
Dimensions ............................................. 578
Display Drive information...................................116
Dynamic radar cruise control ..... 254
LDA (Lane Departure Alert) ........ 271
Multi-information display...................115
Warning message .............................527
Distance ...................................................... 117
Do-it-yourself maintenance ...............451
Door courtesy lights Location ................................................. 425
Wattage ................................................ 588
Door lock
Doors......................................................... 136
Smart entry & start system ............. 149
Wireless remote control .................130D

614Alphabetical index
IS300h_EE(OM53D56E)
First-aid kit storage belt ..................... 432
Flat tireVehicles with emergency
tire puncture repair kit .................545
Vehicles with run-flat tires............ 559
Floor mats ................................................... 34
Fluid Brake....................................................... 585
Hybrid transmission ..................................... 584
Washer ................................................... 462
Fog lights .................................................. 236 Replacing light bulbs........................507
Switch ...................................................... 236
Follow me home system ....................230
Footwell light .......................................... 425 Wattage................................................. 588
Front fog lights ....................................... 236 Replacing light bulbs........................507
Switch ...................................................... 236 Front personal lights............................ 426
Wattage ................................................ 588
Front position lights ............................. 229 Light switch............................................229
Replacing light bulbs ....................... 507
Front seats .................................................165
Adjustment .............................................165
Cleaning ................................................ 446
Correct driving posture.................... 36
Driving position memory ................ 169
Head restraints ..................................... 174
Power easy access system............. 169
Seat heaters...........................................424
Seat position memory .......................169
Seat ventilators ....................................424
Front turn signal lights ........................ 225
Replacing light bulbs ........... 497, 499
Turn signal lever..................................225
Wattage ................................................ 588
F

615Alphabetical index
IS300h_EE(OM53D56E)
Fuel ............................................................. 246Capacity ................................................ 580
Fuel gauge.............................................. 109
Information ........................................... 589
Refueling ................................................ 246
Type ............................................. 246, 580
Warning light ....................................... 523
Fuel consumption .................................. 124
Average fuel economy ...................... 116
Current fuel consumption................ 116
Fuel filler door ........................................ 246 If the fuel filler door
cannot be opened .........................248
Refueling ................................................ 246
Fuel gauge ................................................ 109
Fuses ........................................................... 491
Gauges ...................................................... 109
Glove box ................................................ 429
Glove box light ...................................... 429 Hands-free system
(for cellular phone) ...........................380
Head restraints ........................................ 174
Headlight cleaner................................. 238
Headlights ............................................... 229
Automatic High Beam system...................................................232
Discharge headlights precautions ...................................... 508
Follow me home system................ 230
Light switch............................................229
Replacing light bulbs ....................... 507
Wattage ................................................ 588
Heaters .......................................................412 Air conditioning system ................... 412
Heated steering wheel ....................423
Outside rear view mirrors .............. 418
Seat heaters...........................................424
Hill-start assist control........................ 296
High-voltage components .................. 83
Hood .......................................................... 453
Open ....................................................... 453
Pop Up Hood ........................................ 56
G
H

616Alphabetical index
IS300h_EE(OM53D56E)
HooksCargo hooks........................................ 432
Coat hooks ........................................... 439
Retaining hooks (floor mat)............. 34
Horn ............................................................ 178
Hybrid battery (traction battery).......83
Hybrid battery (traction battery) air vents.....................................................84
Hybrid system ........................................... 79 Emergency shut off system.............. 84
Energy monitor/consumption screen.........................121
EV drive mode ..................................... 217
High voltage components ...............83
Hybrid System Indicator ................... 113
Hybrid system precautions.............. 83
Hybrid vehicle driving tips ............320
If the hybrid system will not start ...................................... 560
Overheating ...........................................571
Power (ignition) switch ..................... 212
Starting the hybrid system............... 212
Hybrid System Indicator .......................113
Hybrid transmission .............................. 219 If the shift lever cannot be shifted from P ...................................562
Paddle shift switches .......................... 221
S mode.................................................... 222 Identification
Engine ..................................................... 579
Vehicle.................................................... 579
Ignition switch (power switch) ..........212
Illuminated entry system .................... 426
Immobilizer system................................. 90
Indicators .................................................. 106
Initialization Engine oil maintenance data .......458
Moon roof.................................................191
Multi-information display................... 117
Power windows ...................................186
Tire pressure warning
system.................................................. 468
Inside door handle lights ................... 425
Inside rear view mirror ......................... 179
Instrument panel light control ............ 112
Interior lights........................................... 425 Wattage ................................................ 588
Intrusion sensor and tilt sensor .......... 99
ISOFIX rigid anchors ............................ 69
Jack Positioning the jack .......................... 454
Vehicle-equipped jack................... 476
Jack handle ..............................................476
Jam protection function Moon roof...............................................190
Power window .....................................186I
J