2012 Toyota Prius Owners Manual - Page 815

5-2. Steps to take in an emergency Warning message Details The hybrid battery (traction battery) power has dropped because a long period of time has elapsed after shifting the shift position to N. A buzzer also sounds. Correction procedure Restart the hybrid system when starting the vehicle. (Flashes) The transmission is out of P when attempting to start the hybrid system. (Flashes) Shift the shift position to P before pressing the "POWER" switch. The driver's door is opened when the transmission is out of P with the hybrid system on. (Flashes) Shift the shift position to P. (Flashes) Indicates that the accelerator pedal is depressed while the shift position is in N. A buzzer also sounds. EV drive mode cannot be switched to. A buzzer also sounds. The reason why EV drive mode cannot be used is shown on the second line (may not be shown in some instances.) Release the accelerator pedal and shift the shift position to D or R. 5 When trouble arises Use the EV drive mode when it becomes available. 515