2010 Lexus IS250 unlock with key

44
1-2. Opening, closing and locking the doors and trunk
IS350/250_U
Locking the front doors from the outside without a key
The door cannot be locked if the “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode, or the electronic key is left
inside the vehicle.
Depending on the position of the electronic key, the key may not be detected
correctly and the door may be locked.
Rear door child-protector lock
The door cannot be opened from
inside the vehicle when the locks
are set.
These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear
doors.
Automatic door locking and unlocking systems
The following functions can be set or cancelled:
*: Vehicles with an automatic transmission only
FunctionOperation
Shift position linked door
locking function
*Shifting the shift lever out of P locks all doors.
Shift position linked door
unlocking function
*Shifting the shift lever to P unlocks all doors.
Speed linked door locking
functionAll doors are locked when the vehicle speed is
approximately 12 mph (20 km/h) or higher.
Driver's door linked door
unlocking functionAll doors are unlocked when the driver's door is
opened within 10 seconds after turning the
“ENGINE START STOP” switch OFF.

46
1-2. Opening, closing and locking the doors and trunk
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. 5 4 9 )
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 are thrown out of the vehicle and it
may result in serious injury or death.
Be especially careful for the front doors, 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.

88
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.
● 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 with the alarm being set.
● The hood is opened with the alarm being set.
■ 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 using the entry function, wireless
remote door lock functi on or mechanical key.
● Turn the “ENGINE START STOP” switch to the ACCESSORY or
IGNITION ON mode or start th e engine. (The alarm will be
deactivated or stopped after a few seconds.)

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3
Interior features
IS350/250_U
3-5. Using the interior lights
Interior lights list
Your Lexus is equipped with the illuminated entry system to assist in enter-
ing the vehicle. Owing to the function of the system, the lights shown in the
following illustration automatically turn on/off according to the presence of
the electronic key, whether the door s are locked/unlocked, whether the
doors are opened/closed, and the “ENGINE START STOP” switch mode.
Front personal lights (→P. 3 3 1 )
Front interior lights ( →P. 3 3 1 )
Rear personal lights ( →P. 3 3 1 )
Rear interior light
Rear overhead courtesy light
Shift lever light (when the “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode)
Front footwell lights

333
3
Interior features
IS350/250_U
3-6. Using the storage features
List of storage features
Glove boxOpen (push button)
Lock with the mechanical key
Unlock with the mechanical key
Glove box
Console boxes
Cup holders
Bottle holders/door pockets
Overhead console
Glove box

5
When trouble arises
505
5-2. Steps to take in an emergency
IS350/250_U
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Doors
Remove the cover on the driver’s
door handle using the mechanical
key (→P. 25) in order to perform
the following operations.
Locks all doors
Closes the windows/moon roof
(turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/moon roof
(turn and hold)
Return the cover to the original
position after use.
If communication between the electronic key and vehicle is interrupted
( → P. 32) or the electronic key cann ot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.