Lexus 2013 IS250, Owner'S Manual

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3-2. Opening, closing and locking the doors and trunk
IS250_EE(OM53B11E)

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. 523)

Conditions affecting the operation of the smart entry & start system or wireless
remote control

P. 132

Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features:

P. 549)
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.