2012 Toyota Prius Owners Manual - Page 760

5-2. Steps to take in an emergency Interior buzzer Exterior buzzer Warning message Details An attempt was made to lock the doors using the entry function after the electronic key was carried outside the vehicle without turning off the "POWER" switch. An attempt was made to start the hybrid system without the electronic key being present, or the electronic key was not functioning normally. An attempt was made to drive when the regular key was not inside the vehicle. Correction procedure Once Continuous (For 5 seconds) (Displayed alternately) (Flashes) Turn the "POWER" switch off and lock the doors again. 9 times ⎯ (Flashes) Confirm that the electronic key is inside the vehicle. 5 When trouble arises 451