
841-2. Hybrid system
IS300h_EE(OM53C61E)
There is an air intake vent on the right
side of the rear seatback for the pur-
pose of cooling the hybrid battery
(traction battery). If the vent becomes
blocked, the hybrid battery may over-
heat, leading to a reduction in hybrid
battery output.
When a certain level of impact is detected by the impact sensor, the emergency
shut off system blocks the high voltage current and stops the fuel pump to mini-
mize the risk of electrocution and fuel leakage. If the emergency shut off system
activates, your vehicle will not restart. To restart the hybrid system, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
A message is automatically displayed when a malfunction occurs in the hybrid
system or an improper operation is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
(→P. 509)
Hybrid battery (traction battery) air vent
Emergency shut off system
Hybrid warning message
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1011-3. Theft deterrent system
1
For safety and security
IS300h_EE(OM53C61E)
■Tilt sensor detection considerations (if equipped)
The sensor may trigger the alarm in the following situations:
●The vehicle is transported by a ferry, trailer, train, etc.
●The vehicle is parked in a parking garage.
●The vehicle is inside a car wash that moves the vehicle.
●Any of the tires loses air pressure.
●The vehicle is jacked up.
●An earthquake occurs or the road caves in.
NOTICE
■To ensure the intrusion sensor function correctly
●Installing accessories other than genuine Lexus parts or leaving objects between the
driver’s seat and front passenger’s seat may reduce the detection performance.
●To ensure that the sensors operate properly,
do not touch or cover them.
●Do not spray air fresheners or other products
directly into the sensor holes.
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1052. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53C61E)
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
*1: These lights turn on when the power switch is turned to ON mode to indicate that a
system check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunction in a system if the lights do not come
on, or turn off. Have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
*2: The light flashes to indicate a malfunction.
*3: This light illuminates on the center panel.
Wa r n i n g l i g h t s
*1Brake system warning light
(→P. 5 0 3 )*1Slip indicator
(→P. 5 0 4 )
*1Brake system warning light
(→P. 5 0 3 )*1 Automatic headlight level-
ing system warning light
(→P. 5 0 5 )
*1Charging system warning
light (→P. 5 0 3 )Open door warning light
(→P. 5 0 5 )
*1Malfunction indicator
lamp (→P. 5 0 3 )Low fuel level warning light
(→P. 5 0 5 )
*1SRS warning light
(→P. 5 0 4 )Driver’s and front passen-
ger’s seat belt reminder light
(→P. 5 0 5 )
*1ABS warning light
(→P. 5 0 4 )*3Rear passengers’ seat belt
reminder lights (→P. 505)
*1Electric power steering sys-
tem warning light
(→P. 5 0 4 )*1Master warning light
(→P. 5 0 5 )
*1, 2
(if equipped)
Pre-crash safety system
warning light (→P. 5 0 4 )*1Tire pressure warning light
(→P. 5 0 5 )
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129
3
Operation of
each component
IS300h_EE(OM53C61E)
3-1. Key information
Keys .................................................. 130
3-2. Opening, closing and locking
the doors and trunk
Doors ............................................... 136
Trunk ................................................. 143
Smart entry & start system.......149
3-3. Adjusting the seats
Front seats.......................................164
Rear seats........................................166
Driving position memory......... 168
Head restraints ............................. 173
3-4. Adjusting the steering
wheel and mirrors
Steering wheel .............................. 176
Inside rear view mirror...............178
Outside rear view mirrors ....... 180
3-5. Opening, closing the
windows and moon roof
Power windows ............................ 184
Moon roof .......................................187
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1423-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53C61E)
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked.
Depending on the force of the impact or the type of accident, however, the system may
not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. (→P. 544)
■Conditions affecting the operation of the smart entry & start system or wireless remote
control
→P. 1 5 1
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: →P. 5 7 3 )
CAUTION
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant being thrown out of the
vehicle, resulting in death or serious injury.
●Ensure that all doors are properly closed.
●Do not pull the inside handle of the doors while driving.
Be especially careful with the front doors, as the doors may be opened even if the
inside lock buttons are in locked position.
●Set the rear door child-protector locks when children are seated in the rear seats.
■When using the wireless remote control and operating the power windows and moon
roof
Operate the power window or moon roof after checking to make sure that there is no
possibility of any passenger having any of their body parts caught in the window or
moon roof. Also, do not allow children to operate the wireless remote control. It is pos-
sible for children and other passengers to get caught in power window and moon roof.
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1453-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53C61E)
To protect luggage stored in the trunk against theft, the luggage security system
can be set to on.
Folding type rear seats only: Move
the luggage security system levers to
the lock position.
To disable the trunk opener, turn the
main switch in the glove box off
On
Off
When the main switch is off, the trunk
lid cannot be opened even with the
wireless remote control or entry
function.
Luggage security system
1
2
1
2
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