Page 144 of 628

1423-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
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. 548)
Conditions affecting the operation of the smart entry & start system or wireless
remote control
P. 151
Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 575)
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.
Page 145 of 628
1433-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
Press the opener switch.
Trunk button
Vehicles with entry function:
While carrying the electronic
key, press the button on the trunk
lid.
When all the doors are unlocked
with the power door lock system,
the trunk can be opened without
carrying the electronic key.
Vehicles without entry function:
Unlock all the doors with the
power door lock system and
press the button on the trunk lid.
Trunk
The trunk can be opened using the trunk opener, entry function or wire-
less remote control.
Opening the trunk from inside the vehicle
Opening the trunk from outside the vehicle
Page 146 of 628
1443-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Wireless remote control
Press and hold the switch.
Using the trunk grip, lower the
trunk without applying force to the
side and push the trunk down from
the outside to close it.
When closing the trunk
Page 147 of 628
1453-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
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 sys-
tem 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
Page 148 of 628

1463-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Trunk light (if equipped)
The trunk light turns on when the trunk is opened.
Function to prevent the trunk being locked with the electronic key inside
When all doors are locked, closing the trunk lid with the electronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on the
trunk lid.
If the spare electronic key is put in the trunk with all the doors locked, the key
confinement prevention function is activated so the trunk can be opened. In
order to prevent theft, take all electronic keys with you when leaving the vehi-
cle.
If the electronic key is put in the trunk with all the doors locked, the key may
not be detected depending on the location of the key and the surrounding radio
wave conditions. In this case, the key confinement prevention function cannot
be activated, causing the doors to lock when the trunk is closed. Make sure to
check where the key is before closing the trunk.
The key confinement prevention function cannot be activated if any one of the
doors is unlocked. In this case, open the trunk using the trunk opener.
Using the mechanical key
The trunk can be also opened using the mechanical key. (P. 548)
If the smart entry & start system or the wireless remote control does not operate
properly
Use the mechanical key to unlock the trunk. (P. 548)
Replace the key battery with a new one if it is depleted. (P. 472)
When leaving a key to the vehicle with a parking attendant
P. 132
Customization
The trunk unlocking operation can be changed. (Customizable features: P.
575)
Page 152 of 628

1503-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Battery-saving function (vehicles with entry function)
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is not
in operation for a long time.
In the following situations, the smart entry & start system may take some time
to unlock the doors.
• The electronic key has been left within approximately 2 m (6 ft.) of the out-
side of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
If the smart entry & start system has not been used for 14 days or longer, the
doors cannot be unlocked at any door except the driver’s door. In this case, hold
the driver’s door handle, or use the wireless remote control or mechanical key,
to unlock the doors.
Electronic Key battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the
electronic key from receiving radio waves.
Press twice while pressing and hold-
ing . Confirm that the electronic key
indicator flashes 4 times.
While the battery-saving mode is set, the
smart entry & start system cannot be used.
To cancel the function, press any of the
electronic key buttons.
Page 153 of 628

1513-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situa-
tions, the communication between the electronic key and the vehicle may be
affected, preventing the smart entry & start system, wireless remote control and
immobilizer system from operating properly. (Ways of coping: P. 548)
When the electronic key battery is depleted
Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication device
When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
When other wireless keys (that emit radio waves) are being used nearby
When carrying the electronic key together with the following devices that emit
radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
If window tint with a metallic content or metallic objects are attached to the rear
window
Page 154 of 628

1523-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Note for the entry function (if equipped)
Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the
rear bumper center when the trunk is opened.
Do not leave the electronic key on top of the instrument panel or near the door
pockets when exiting the vehicle. Depending on the radio wave reception con-
ditions, it may be detected by the antenna outside the cabin and the doors will
become lockable from the outside, possibly trapping the electronic key inside
the vehicle.
As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the electronic
key can be used to unlock the vehicle.
The doors may unlock or lock if a large amount of water splashes on the door
handle, such as in the rain or in a car wash, when the electronic key is within the
effective range. (The doors will automatically be locked after approximately 30
seconds if the doors are not opened and closed.)
If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by
the entry function. (Use the wireless remote control to unlock the doors.)
Touching the door lock or unlock sensor while wearing gloves may prevent
lock or unlock operation.
If the door handle becomes wet while the electronic key is within the effective
range, the door may lock and unlock repeatedly. In this case, follow the follow-
ing correction procedures to wash the vehicle:
• Place the electronic key in a location 2 m (6 ft.) or more away from the vehi-
cle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart entry &
start system. (P. 150)
If the electronic key is inside the vehicle and a door handle becomes wet during
a car wash, a message may be shown on the multi-information display and a
buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
The lock sensor may not work properly if it comes into contact with ice, snow,
mud, etc. Clean the lock sensor and attempt to operate it again, or use the lock
sensor on the lower part of the door handle.
A sudden handle operation or a handle operation immediately after entering the
effective range may prevent the doors from being unlocked. Touch the door
unlock sensor and check that the doors are unlocked before pulling the door
handle again.
Unlocking the vehicle may take more time if another electronic key is within
the effective range.