Page 104 of 573
103
3
Operation of each component
IS350/250_U (OM53758U)3-2. Opening, closing and locking the doors and trunk
◆Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s door handle to unlock all the
doors.*
Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
*: The door unlock settings can bechanged. ( P. 1 0 7 )
Touch the lock sensor (indentation on the upper part of the door handle) to
lock all the doors.
◆Wireless remote control
Locks all the doors
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Press and hold to open the windows
and moon roof.
*
*
: This setting must be customized at
your Lexus dealer.
Doors
Unlocking and locking the doors from the outside
1
2
1
2
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1043-2. Opening, closing and locking the doors and trunk
IS350/250_U (OM53758U)
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: once; Unlocked: twice)
A buzzer sounds to indicate that the windows and moon roof are operating.
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the
security feature automatically locks the vehicle again.
■Welcome light illumination control
The front position, tail and license plate lights automatically turn on at night when the
doors are unlocked using the entry function or wireless remote control if the light switch
is in the “AUTO” position.
■When the door cannot be locked by the lock sensor on the upper part of the door han-
dle
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the door to stop the buzzer, and lock the vehicle
once more.
■Setting the alarm
Locking the doors will set the alarm system. ( P. 7 1 )
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
Use the mechanical key to lock and unlock the doors. ( P. 4 8 8 )
Replace the key battery with a new one if it is depleted. ( P. 4 2 7 )
If the door will not lock even when the topside
sensor area is touched, try touching both the
topside and underside sensor areas at the same
time.
Page 108 of 573

1073-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
■Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless remote con-
trol. Turn the engine switch off.
When the indicator light on the key su rface is not on, press and hold , or
for approximately 5 seconds while pressing and holding .
The setting changes each time an operatio n is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds, and
repeat step .)
To prevent unintended triggering of the alarm, unlock the doors using the wireless
remote control and open and close a door once after the settings have been changed. (If
a door is not opened within 60 seconds af ter is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. ( P. 7 1 )
■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. 4 8 8 )
■Conditions affecting the operation of the sm art access system with push-button start
or wireless remote control
P. 116
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 5 2 5 )
1
2
2
Multi-information
displayUnlocking functionBeep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings once
Holding a passenger’s door han-
dle unlocks all the doors.
Holding a door handle unlocks
all the doors.Exterior: Beeps twice
Interior: Pings once
Page 110 of 573
1093-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
Press the opener switch.
◆Smart access system with push-button start
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 carry-
ing the electronic key.
◆Wireless remote control
Press and hold the switch.
Tr u n k
The trunk can be opened using the trunk opener, entry function or wireless
remote control.
Opening the trunk from inside the vehicle
Opening the trunk from outside the vehicle
Page 111 of 573
1103-2. Opening, closing and locking the doors and trunk
IS350/250_U (OM53758U)
Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
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 offOn
Off
When the main switch is off, the trunk
lid cannot be opened even with the
wireless remote control or entry
function.
When closing the trunk
Luggage security system
1
2
1
2
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1113-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
■Tr u n k l i g h t
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 confine-
ment prevention function is activated so the trunk can be opened. In order to prevent
theft, take all electronic keys with you when leaving the vehicle.
●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 condi-
tions. 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 canno t be activated if any one of the doors is
unlocked. In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 488)
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
Use the mechanical key to unlock the trunk. ( P. 4 8 8 )
Replace the key battery with a new one if it is depleted. ( P. 4 2 7 )
■When leaving a key to the vehi cle with a parking attendant
P. 1 0 0
■Customization
The trunk unlocking operation can be changed. (Customizable features: P. 5 2 5 )
The trunk lid can be open
ed by pulling the glow-
in-the-dark lever located on the inside of the
trunk lid to the side.
The lever will continue to glow for some time
after the trunk lid is closed.
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1153-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
■Battery-saving function
The battery-saving function will be activated in order to prevent the electronic key bat-
tery and the vehicle battery from being discharged while the vehicle is not in operation
for a long time.
●In the following situations, the smart access system with push-button start may take
some time to unlock the doors.
• The electronic key has been left within approximately 6 ft. (2 m) of the outside of the
vehicle for 10 minutes or longer.
• The smart access system with push-butto n start has not been used for 5 days or
longer.
●If the smart access system with push-butto n start has not been used for 14 days or
longer, the doors cannot be unlocked at any do or 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 de pletion is minimized by stopping the elec-
tronic key from receiving radio waves.
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the smart
access system with push-button start cannot be
used. To cancel the function, press any of the
electronic key buttons.
Page 117 of 573

1163-2. Opening, closing and locking the doors and trunk
IS350/250_U (OM53758U)
■Conditions affe cting operation
The smart access system with push-button start uses weak radio waves. In the following
situations, the communication between th e electronic key and the vehicle may be
affected, preventing the smart access system with push-button start, wireless remote
control and engine immobilizer system from operating properly. (Ways of coping:
P. 4 8 8 )
●When the electronic key battery is depleted
●Near a TV tower, electric powe r 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 ph one, cordless phone or other wireless com-
munication device
●When the electronic key is in contact wi th, 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 me tallic objects are attached to the rear win-
dow