Toyota 2015 Prius Owner's Manual page 104

Antenna location and effective range
Antenna location
■
Effective range (areas within which the electronic key is
■
detected)
PRIUS_OM_OM47A17U_DVD_(U)
1-3. Opening, closing and locking the doors
Antennas inside cabin
When starting the hybrid system
or changing "POWER" switch
modes
The system can be operated
when the electronic key is inside
the vehicle.
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