2011 Toyota Prius Owners Manual - Page 85
2011 Toyota Prius Manual
Page 85 highlights
1-2. Key information Antenna location and effective range n Antenna location Antennas inside cabin n Effective range (areas within which the electronic key is detected) When starting the hybrid system or changing "POWER" switch modes The system can be operated when the electronic key is inside the vehicle. 58 PRIUS_U (OM47685U) DVD