Note For The Entry Function; When The Vehicle Is Not Driven For Extended Periods; Security Feature (Smart Access System) - Lexus IS250 2009 Service Manual

Note for the entry function

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Even when the electronic key is within the effective range (detection areas), the
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system may not operate properly in the following cases.
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the
rear bumper center when the trunk is unlocked.
• The electronic key is on the instrument panel, rear package tray or floor, or in
the glove box when the engine is started or "ENGINE START STOP" switch
modes are changed.
As long as the electronic key is within the effective range, the doors may be
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locked or unlocked by anyone.
Even if the electronic key is not inside the vehicle, it may be possible to start the
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engine if the electronic key is near the window.
The doors may unlock if a large amount of water splashes on the door handle,
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such as in the rain or in a car wash. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)
Gripping the door handle when wearing a glove may not unlock the door.
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If the wireless remote control is used to lock the doors when the electronic key
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is near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless remote control to unlock the doors.)
A sudden approach to the effective range or door handle operation may prevent
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the doors from being unlocked. In this case, return the door handle to the original
position and check that the doors unlock before pulling the door handle again.

When the vehicle is not driven for extended periods

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To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of
the vehicle.
Security feature
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If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.
1-2. Opening, closing and locking the doors and trunk
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