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1
Before driving
IS250/220d/200d_EE
1-2. Opening, closing and locking the doors and trunk
Smart entry & start system
The following operations can be performed simply by carrying the
electronic key (including the card key) on your person, for example
in your pocket.
(The driver should always carry the electronic key.)
Locks and unlocks the doors (P. 38)
Unlocks the trunk (
P. 38)
Starts the engine (
P. 1 5 3 )
: If equipped
Electronic key
Electronic keyElectronic key
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1-2. Opening, closing and locking the doors and trunk
IS250/220d/200d_EE
Unlocking and locking the doors (front door handles only)
Grip the handle to unlock the
door.
Make sure to touch the sensor
on the back of the handle.
The door cannot be unlocked
for 3 seconds after the door is
locked.
Press the lock button to lock the
door.
Pressing and holding the button
closes the windows and moon
roof.
Unlocking the trunk
Press the button to unlock the
trunk.
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1-2. Opening, closing and locking the doors and trunk
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Before driving
IS250/220d/200d_EE
Antenna location and effective range
Antenna location
Antennas outside cabin
Antennas inside cabin
Antenna inside trunk
Antenna outside trunk
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1-2. Opening, closing and locking the doors and trunk
IS250/220d/200d_EEEffective range (areas within which the electronic key is
detected)
When locking or unlock-
ing the doors
The system can be operated
when the electronic key is
within about 70 cm (2.3 ft.)
of either of the outside
front door handles. (Only
the doors detecting the key
can be operated.)
When unlocking the
trunk
The system can be operated
when the electronic key is
within about 70 cm (2.3 ft.)
of the trunk release button.
When starting the engine
or changing “ENGINE
START STOP” switch
modes
The system can be operated
when the electronic key is
inside the vehicle.
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1-2. Opening, closing and locking the doors and trunk
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Before driving
IS250/220d/200d_EE
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1-2. Opening, closing and locking the doors and trunk
IS250/220d/200d_EE
Operation signals
Doors: The emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: Once; Unlocked: Twice)
Windows and moon roof: A buzzer sounds to indicate that the windows and
moon roof are operating.
Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following sit-
uations, the communication between the electronic key and the vehicle may
be affected, preventing the smart entry & start system and wireless remote
control from operating properly:
(Ways of coping: P. 516)
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 elec-
trical noise
When carrying a portable radio, cellular phone, cordless phone or other
wireless communication devices
When the electronic key is in contact with, or is covered by the follow-
ing 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 multiple electronic keys are in the vicinity
When another wireless key (that emits radio waves) is being used nearby
When carrying or using 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 computer or personal digital assistant (PDA)
• Digital audio player
• Portable game system
If window tint with a metallic content or metallic objects are attached to
the rear window
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1-2. Opening, closing and locking the doors and trunk
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Before driving
IS250/220d/200d_EE
Switching the door unlock function
It is possible to set which doors the entry function unlocks.
Turn the “ENGINE START STOP” switch OFF.
Cancel the intrusion sensor of the alarm system to prevent unin-
tended triggering of the alarm during the setting change. (P. 1 0 2 )
When the indicator on the key surface is turned off, push and
hold or for approximately 5 seconds while pushing
on the key.
The setting changes each time an operation is performed, as shown below.
(When changing the setting continuously, release the buttons, wait for at
least 5 seconds, and repeat step 3.)
To prevent unintended triggering of the alarm, unlock the doors using the
electronic key and open and close a door once after the settings have been
changed. (If a door is not opened within 30 seconds after is pressed, the
doors will be locked again and the alarm will automatically be set.)
In case that the alarm is triggered, immediately stop the alarm. (P. 102)
STEP1
STEP2
STEP3
Multi-informa-
tion displayUnlocking doorsBeep
Hold the driver's door han-
dle to unlock only the
driver's door.
Exterior: Beeps three
times
Interior: Pings once
Hold the front passenger’s
door handle to unlock all
doors.
Hold either front door han-
dle to unlock all doors.Exterior: Beeps twice
Interior: Pings once
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1-2. Opening, closing and locking the doors and trunk
IS250/220d/200d_EE
Battery-saving function
In the following circumstances, the entry function is disabled in order to
prevent the vehicle and electronic key batteries from discharging.
When the entry function has not been used for a month or more
When the electronic key has been left within approximately 1 m (3 ft.) of
the vehicle for 10 minutes or more
The system will resume operation when
The vehicle is locked using the door handle lock switch.
The vehicle is locked/unlocked using the wireless remote control func-
tion.
(P. 55)
The vehicle is locked/unlocked using the mechanical key. (P. 516)
Electronic key battery depletion
The standard battery life is 1 to 2 years. (The card key battery life is
about a year and a half.)
If the battery becomes low, an alarm will sound in the cabin when the
engine stops. (P. 481)
The battery becomes depleted even if the electronic key is not used
because the key always receives radio waves. If the smart entry & start
system or the wireless remote control does not operate, or the detection
area becomes smaller, the battery may be depleted. Replace the battery
when necessary.
(P. 431)
To avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a magnetic
field.
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Glass top ranges
• Table lamps