
807
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the hybrid system will not start (hybrid vehicles)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (→P. 8 1 1 )
●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 system. ( →P. 8 0 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 8 1 7 )
●The 12-volt battery terminal connections may be loose or corroded.
Reasons for the hybrid system not st arting vary depending on the situa-
tion. Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( →P. 2 0 8 )
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

8087-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
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. 8 1 7 )
Contact your Lexus dealer 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
functioning 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 your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4

846
ES350_300h_OM_OM33A60U_(U)
8-1. Specifications
A: HB3 halogen bulbsB: H11 halogen bulbs
C: D4S discharge bulbs D: H16 halogen bulbs E: Wedge base bulbs (amber)F: Wedge base bulbs (clear)
*: If equipped
Light bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights High beam
Low beam (halogen bulbs)
Low beam (discharge bulbs)
9005
605535A B
C
Fog lights*19D
Front turn signal lights7444NA28 /8E
Front side marker lightsW5W5F
Rear turn signal lightsWY21W21E
Back-up lightsW16W16F
Outer foot lightsW5W5F
Interior
Door courtesy lights5F
Vanity lights5F
Interior light8F
Pe r s o n a l l i g h t s8F
Tr u n k l i g h t5F

872
ES350_300h_OM_OM33A60U_(U)
8-2. Customization
■Illumination (→P. 6 1 1 )
FunctionDefault
settingCustom-
ized setting
Interior lights illumination
controlOnOff—————O
“Interior Lights Off Timer”
(Time elapsed before the
interior lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
Operation after the
“START STOP ENGINE”
<“POWER”> switch is
turned off
OnOff—————O
Operation when the doors
are unlockedOnOff—————O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff—————O
Footwell lightingOnOff—————O
Outer foot lightsOnOff—————O
“Exterior Lights Off Timer”
(Time elapsed before the
outer foot lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
“Ambient illumin. (instru-
ment panel)”
(Enable/disable operation
of the ornament lights on
the instrument panel)*
OnOff—O—OOO
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.
Standard-2 t o +2—————O
Sensitivity of the ambient
light sensor used for
brightening the meter
lights etc.
Standard-2 t o +2—————O
123456

900Alphabetical index
ES350_300h_OM_OM33A60U_(U)
CareAluminum wheels ............................. 659
Exterior................................................... 658
Interior .....................................................662
Seat belts ............................................... 663
Cargo capacity....................................... 198
Cargo hooks .......................................... 620
CD player
*...................................400, 512
Chains ....................................................... 332
Child restraint system Booster seats, definition .................... 57
Booster seats, installation.................. 67
Convertible seats, definition ............ 57
Convertible seats, installation .........64
Front passenger occupant
classification system ........................ 50
Infant seats, definition .......................... 57
Infant seats, installation .......................64
Installing CRS
with LATCH anchors ..................... 62
Installing CRS with seat belts .......... 64
Installing CRS with top tether strap .........................68 Child safety .................................................56
12-volt battery
precautions ............................695, 816
Airbag precautions................................ 41
Child restraint system......................... 57
How your child should wear
the seat belt .......................................... 34
Installing child restraints ...................... 61
Moon roof precautions ..................... 181
Power window lock switch............. 174
Power window precautions ........... 176
Rear door child-protectors ............ 143
Removed electronic key battery precautions .............. 720
Seat belt extender precautions ...........................................37
Seat belt precautions .......................... 60
Seat heater precautions ................. 629
Trunk precautions .............................. 150
Child-protectors .................................... 143
Cleaning Aluminum wheels ..............................659
Exterior .................................................. 658
Interior ..................................................... 662
Seat belts................................................ 663
Clock..........................................................623
Coat hooks ............................................. 635
Condenser................................................ 691
Console box............................................. 617
Console box light ................................... 617
Consumption screen ..............................117
Cooling system
Engine overheating ............................821
Hybrid system overheating .......... 824
Cruise control Cruise control ..................................... 248
Dynamic radar cruise control ..... 252
C

905Alphabetical index
ES350_300h_OM_OM33A60U_(U)
I/M test ..................................................... 672
IdentificationEngine..................................................... 834
Vehicle ................................................... 833
Ignition switch (“POWER”
switch) .................................................... 208
Ignition switch (“START STOP
ENGINE” switch) .............................. 201
Illuminated entry system ......................613
Immobilizer system.........................82, 84
Indicators .................................................... 93
Initialization Maintenance........................................ 666
Tire pressure warning system................................703
Initiators (tire pressure warning system)...................................710
Inside rear view mirror ........................ 168
Instrument panel light control ............ 96
Interior light................................................ 611
Intuitive parking assist Function .................................................. 275
Warning message ................... 771, 778 Jack
Positioning a floor jack....................678
Vehicle-equipped jack ................... 793
Jack handle ................................................. 793
Jam protection function
Moon roof ............................................... 179
Power trunk opener and closer ............................................149
Power windows.................................... 175
Keyless entry Smart access system
with push-button start.................... 125
Wireless remote control..................139
Keys Battery-saving function ......................131
Electronic key ........................................ 122
Engine switch ........................... 201, 208
If the electronic key does not operate properly......... 810
Key number plate ................................ 122
Keyless entry ............................... 125, 139
Mechanical key..................................... 122
“Power” switch ....................................208
Replacing the battery ........................ 719
“START STOP ENGINE” switch .....................................................201
Warning buzzer ................................... 129
Wireless remote control key .........139
Knee airbags ............................................. 38
IJ
K
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

906Alphabetical index
ES350_300h_OM_OM33A60U_(U)
Language (multi-information display) ............ 863
LATCH anchors ...................................... 62
LDA (Lane Departure Alert) .......... 267
Lever
Auxiliary catch lever ......................... 677
Hood lock release lever ................. 677
Internal trunk release lever ............. 150
Shift lever ....................................... 218, 221
Turn signal lever ................................. 225
Wiper lever ...........................................239
Lexus Display Audio system............338 Display settings ...................................343
Setup menu ...........................................345
Lexus Enform
*
License plate lights Light switch ...........................................228
Replacing light bulbs ........................ 745
Welcome light
illumination control ......................... 125
Light bulbs
Replacing ............................................... 733
Wattage ................................................. 846 Lights
Fog light switch ................................... 238
Headlight switch ................................ 228
Illuminated entry system...................613
Interior light............................................. 612
Interior lights list..................................... 611
Personal lights ....................................... 612
Replacing light bulbs ....................... 733
Trunk light................................................ 149
Turn signal lever ................................. 225
Vanity lights .......................................... 622
Wattage .................................................846
Welcome light illumination control.................................................... 125
Lock steering column......................... 204
Low profile tire .......................................706
Luggage security system ....................148
Maintenance Do-it-yourself ma intenance ......... 673
General maintenance .................... 668
Maintenance data.............................. 832
Maintenance requirements ..........665
Malfunction indicator lamp ...............760
Master warning light ............................ 762
Meter............................................................ 95 Indicators .................................................. 93
Instrument panel light control ........ 96
Multi-information display................ 100
Warning lights.......................................... 91
Micro dust and pollen filter ................ 371
L
M