Key Lexus IS250 2012 Owner's Guide

51
1-2. Opening, closing and locking the doors and trunk
1
Before driving
IS350/250_U
■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. 5 0 5 )
■Customization that can be configured at Lexus dealer
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features →P. 553)
CAUTION
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failing to do so may result in a door opening and an occupant falling out, resulting in
death or serious injury.
●Always use a seat belt.
●Always lock all doors.
●Ensure that all doors are properly closed.
●Do not pull the inside handle of the doors while driving.
The doors may be opened and the passengers may be thrown out of the vehicle,
resulting in death or serious injury.
Be especially careful for 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 seat.

53
1-2. Opening, closing and locking the doors and trunk
1
Before driving
IS350/250_U
■Tr u n k l i g h t
When the trunk light switch is set to on, the trunk light turns on when the trunk is
opened.
■Tr u n k h a n d l e
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. (→P. 5 0 5 )
■Which key to the vehicle is to leave with a parking attendant after disabling the
trunk opener main switch
→ P. 3 0 On
Off
Use the trunk handle when closing the trunk.
The trunk lid can be opened by pulling down
on the glow-in-the-dark lever located on the
inside of the trunk lid.
The lever will continue to glow for some time
after the trunk lid is closed.

59
1-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
IS350/250_U
Linking driving position memory with door unlock operation
Record your driving position to button “1”, “2” or “3” before performing
the following.
Carry only the key (including the card key
∗) to which you want to link the
driving position. If 2 or more keys are in the vehicle, the driving position
cannot be linked properly.
∗
: If equipped
■Recalling the memorized position
Vehicles with an automatic transmission: Check that the shift lever is
set in P.
Vehicles with a manual transmission: Check that the parking brake is
set.
Switch to IGNITION ON mode. Push button “1”, “2” or “3” to
recall the memorized position.
STEP1
STEP2

82
1-4. Opening and closing the windows and moon roof
IS350/250_U
■Door lock linked window operation
The power windows can be opened and closed using the mechanical key.
(→ P. 5 0 5 )
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed.
(Customizable features →P. 5 5 3 )
CAUTION
■Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.
●Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in some
instances, even death.
■Jam protection function
●Never try jamming any part of your body to activate the jam protection function
intentionally.
●The jam protection function may not work if something gets caught just before
the window fully closes.

84
1-4. Opening and closing the windows and moon roof
IS350/250_U
■The moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the
instrument panel when the “ENGINE START STOP” switch is turned OFF and the
driver's door is opened with the moon roof open.
■Door lock linked moon roof operation
The moon roof can be opened and closed using the mechanical key. (→P. 5 0 5 )
■Operating the moon roof after turning the “ENGINE START STOP” switch OFF
The moon roof can be operated for approximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. It cannot, however, be operated once either front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■To reduce moon roof wind noise
When the moon roof is opened automatically, it will stop slightly before the fully
open position. Driving with the moon roof in this position can help reduce wind
noise.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.

90
IS350/250_U
1-6. Theft deterrent system
Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.

91
1-6. Theft deterrent system
1
Before driving
IS350/250_U
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
■Certifications for the engine immobilizer system For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
NOTE:
L’utilisation de ce dispositif est autorisée seulement aux deux conditions suivantes:
(1) il ne doit pas produire de brouillage, et (2) l’utilisateur du dispositif doit être prêt
à accepter tout brouillage radioélectrique reçu, même si ce brouillage est suscepti-
ble de compromettre le fonctionnement du dispositif.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

92
1-6. Theft deterrent system
IS350/250_U
Alarm
The system sounds the alarm and flashes the lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations when the alarm is
set:
● A locked door or trunk is unlocked or opened in any way other
than using the entry function, wireless remote door lock function
or mechanical key.
● The hood is opened.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
● Unlock the doors or trunk.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode or start the engine by pressing the
“ENGINE START STOP” switch. (The alarm will be deactivated
or stopped after a few seconds.)

93
1-6. Theft deterrent system
1
Before driving
IS350/250_U
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Points to remember before locking the doors
To prevent unexpected triggering of the alarm, make sure to check the following
before locking the doors:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●The alarm system does not guarantee absolute security. To help prevent theft,
make sure to check that no valuables and so forth are left in the vehicle.
■Unexpected triggering of the alarm
In the following situations, perform an operation that will deactivate or stop the
alarm (→P. 9 2 )
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the alarm may
be triggered when the battery is reconnected.
●When someone without a key is left in the
vehicle and the doors are locked.
When a door, the trunk or hood is opened
from inside the vehicle, the alarm may be
triggered.
●When the battery is recharged or
replaced, due to battery discharge and so
forth, after locking the doors.
The alarm may be activated when the hood
is opened and the battery is reconnected
after the mechanical key has been used to
unlock the doors.

94
1-6. Theft deterrent system
IS350/250_U
■Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.