2012 Toyota Prius Owners Manual - Page 373

1-3. Opening, closing and locking the doors Alarm Situation The electronic key has a low battery Correction procedure Replace the electronic key battery 1 Interior alarm pings once*1 An attempt was made to start the hybrid system without the electronic key being present, or the electronic key was not functioning normally The driver's door was closed after the key was carried outside the vehicle, and the "POWER" switch was not turned OFF An occupant carried the electronic key outside the vehicle and closed the door while the "POWER" switch was not OFF Start the hybrid system with the electronic key present*2 Before driving Interior alarm pings once and exterior alarm sounds 3 times*1 Turn the "POWER" switch off and close the driver's door again Bring the electronic key back into the vehicle *1: A message will be shown on the multi-information display in the instrument cluster. * 2 : If the hybrid system does not start when the electronic key is inside the vehicle, the electronic key battery may be depleted or there may be difficulties receiving signal from the key. (→P. 541) 69