TOYOTA 2011 Prius User Manual
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1-2. Key information
PRIUS_U (OM47685U) DVD
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To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get 
the electronic key too close to the vehicle when operating the system from 
the outside of the vehicle.
Depending on the position and holding condition of the electronic key, the 
key may not be detected correctly and the system may not operate properly. 
(The alarm may go off accidentally, or the door lock prevention may not func-
tion.)
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Note for the smart key system
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Even when the electronic key is within the effective range (detection 
areas), the 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 back door is locked or unlocked.
• The electronic key is on the instrument panel, luggage cover, floor or in
the glove box when the hybrid system is started or “POWER” switch 
modes are changed.
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As long as the electronic key is within the effective range, the doors may 
be locked or unlocked by anyone. However, only the doors detecting the 
electronic key can be used to unlock the vehicle.
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Even if the electronic key is not inside the vehicle, it may be possible to 
start the hybrid system if the electronic key is near the window.
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When the lock operation is performed using the lock sensor, recognition 
signals will be shown up to two consecutive times. After this, no recogni-
tion signals will be given.
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The doors may unlock or lock if a large amount of water splashes on the 
door handle, such as in the rain or in a car wash when the electronic key 
is within the effective range. (The doors will automatically be locked after 
approximately 60 seconds if the doors are not opened and closed.)
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If the key is kept near the vehicle while it is being washed, water applied 
to a door handle may cause the door to lock and unlock repeatedly. In 
this event, place the key in a location 6 ft. (2 m) or more from the vehicle, 
taking care not to lose the key.