2012 Toyota Prius Owners Manual - Page 798

5-2. Steps to take in an emergency Changing "POWER" switch modes and starting the hybrid system STEP 1 STEP 2 Depress the brake pedal. Touch the Toyota emblem side of the electronic key to the "POWER" switch. If any of the doors is opened or closed while the key is being touched to the switch, an alarm will sound to indicate that the start function cannot detect the electronic key. STEP 3 Perform the following operations. To change "POWER" switch modes: Within 10 seconds of the buzzer sounding, release the brake pedal and press the "POWER" switch. Modes can be changed each time the switch is pressed. (→P. 175) To start the hybrid system: Press the "POWER" switch within 10 seconds of the buzzer sounding, keeping the brake pedal depressed. In the event that the hybrid system still cannot be operated, contact your Toyota dealer.