Page 505 of 612

5058-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling system
→Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Open door warning light (warning buzzer)*2
Indicates that a door or the trunk is not fully closed
→Check that all the doors and the trunk are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp.
gal.) or less
→Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*3
Warns the driver and/or front passenger to fasten their seat belts
→Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*3
Warns the rear passengers to fasten their seat belts
→Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→P. 5 0 9
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (→P. 5 0 6 )
• Flat tire (→P. 5 2 6 , 5 4 0 )
→Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
→Have the system checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Warning lightWarning light/Details/Actions
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Page 511 of 612

5118-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53C61E)
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
A buzzer also sounds.
→Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Continuing to drive the vehicle may be dangerous.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
→Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Indicates that one or more of the doors is not fully closed
The system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the door(s) are not yet fully closed.
→Make sure that all the doors are closed.
Indicates that the hood is not fully closed
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the hood is not yet fully closed.
→Close the hood.
Indicates that the trunk is not fully closed
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the trunk is not yet fully closed.
→Close the trunk.
(If equipped)
Indicates a malfunction in the Lexus parking assists-sen-
sor
The assist-sensors flash.
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
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Page 544 of 612

5448-2. Steps to take in an emergency
IS300h_EE(OM53C61E)
■Doors
Use the mechanical key (→P. 131) in
order to perform the following oper-
ations:
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks all the doors
Opens the windows and moon roof (turn and hold)
*
*
: This setting must be customized at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■Tr u n k
Turn the mechanical key clockwise
to open.
If the electronic key does not operate properly
If communication between the electronic key and vehicle is interrupted (→P.
151) or the electronic key cannot be used because the battery is depleted, the
smart entry & start system and wireless remote control cannot be used. In
such cases, the doors and trunk can be opened and the hybrid system can be
started by following the procedure below.
Locking and unlocking the doors, unlocking the trunk and key linked
functions
1
2
3
4
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Page 570 of 612
5709-1. Specifications
IS300h_EE(OM53C61E)
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
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Page 576 of 612
5769-2. Customization
IS300h_EE(OM53C61E)
■Door lock (→P. 136, 143, 544)
■Smart entry & start system and wireless remote control (→P. 136, 143)
FunctionDefault settingCustomized setting
Unlocking using a mechani-
cal keyAll doors
unlocked in
one stepDriver's door
unlocked in one
step, all doors
unlocked in two
steps
———O
Speed-detecting automatic
door lock functionOnOffO—OO
Shifting gears to position
other than P locks all doorsOffOnO—OO
Shifting gears to P unlocks
all doorsOffOnO—OO
Opening driver's door
unlocks all doorsOnOffO—OO
Locking/unlocking of the
trunk when all doors are
locked/unlockedOnOff———O
1234
FunctionDefault settingCustomized setting
Operation signal
(Emergency flashers)OnOffO—OO
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked
30 seconds
60 seconds
——OO120 seconds
Open door warning buzzerOnOff———O
1234
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Page 577 of 612

577
9 9-2. Customization
Vehicle specifications
IS300h_EE(OM53C61E)
■Smart entry & start system (→P. 136, 143, 149)
*: If equipped
■Wireless remote control (→P. 136, 143)
■Driving position memory* (→P. 1 6 8 )
*: If equipped
FunctionDefault settingCustomized setting
Smart entry & start systemOnOffO—OO
Smart door unlocking*All the doorsDriver's doorO—OO
Number of consecutive
door lock operations*As many as
desired2 times———O
1234
FunctionDefault settingCustomized setting
Wireless remote controlOnOff———O
Unlocking operationAll doors
unlocked in
one stepDriver's door
unlocked in one
step, all doors
unlocked in two
steps
O—OO
Trunk unlocking operationPress and hold
(short)
One short press
———O
Push twice
Press and hold
(long)
Off
1234
FunctionDefault settingCustomized setting
Driver's seat movement
when exiting the vehicleStandardOffO—OOPa r t i a l
Doors linked to the driving
position memory recall
functionDriver's doorAll doors———O
1234
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Page 587 of 612

587What to do if... (Troubleshooting)
IS300h_EE(OM53C61E)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk.
(→P. 1 4 6 )
●Did you press the power switch while firmly depressing the brake pedal?
(→P. 2 0 9 )
●Is the shift lever in P? (→P. 211)
●Is the electronic key anywhere detectable inside the vehicle? (→P. 1 4 9 )
●Is the steering wheel unlocked? (→P. 212)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. (→P. 5 4 5 )
●Is the 12-volt battery discharged? (→P. 5 4 7 )
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode. (→P. 5 4 3 )
●It is locked automatically to prevent theft of the vehicle. (→P. 212) The trunk lid is closed with the electronic key left inside
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the hybrid system is stopped
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Page 592 of 612

592Alphabetical index
IS300h_EE(OM53C61E)
Brake
Fluid .......................................................... 567
Parking brake ...................................... 224
Regenerative braking ...........................81
Warning light ...................................... 503
Brake assist .............................................286
Break-in tips ............................................ 193
Brightness control
Instrument panel light control..........112
BSM (Blind Spot Monitor) ................ 299
Card key.................................................... 130
Care ............................................... 426, 430
Aluminum wheels .............................. 427
Exterior.................................................... 426
Interior .....................................................430
Seat belts..................................................431
Cargo hooks .............................................417
Caution label .............................................83
CD player ................................................. 341
Chains ........................................................ 312Child restraint system............................ 60
Baby seats, definition............................ 61
Baby seats, installation ........................70
Child seats, definition ........................... 61
Child seats, installation .......................70
Installing CRS with ISOFIX
rigid anchors ........................................ 73
Installing CRS with seat belts ..........70
Installing CRS with top strap ........... 74
Junior seats, definition .......................... 61
Junior seats, installation ...................... 72
Child safety ................................................ 59
12-volt battery
precautions .......................... 449, 550
Airbag precautions ............................. 45
Child restraint system ........................ 60
How your child should
wear the seat belt.............................. 40
Installing child restraints .................... 69
Moon roof precautions ....................190
Power window lock switch ............ 184
Power window precautions...........186
Rear door child-protectors ............140
Removed electronic key
battery precautions........................473
Seat belt precautions........................... 42
Seat heater precautions ................. 409
Trunk precautions .............................. 147
C
IS300h_EE_OM53C61E.book 592 ページ 2014年5月20日 火曜日 午後5時40分