2012 Toyota Prius Owners Manual - Page 782

5 -2 . St e ps t o t a k e in a n e m e rge nc y If the electronic key does not operate properly (vehicles with a smart key system) If communication between the electronic key and vehicle is interrupted (→P. 55) or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors can be opened and the hybrid system can be started by following the procedure below. Locking and unlocking the doors Use the mechanical key (→P. 44) in order to perform the following operations (driver's door only): Unlocks the doors Locks all the doors Turning the key rearward unlocks the driver's door. Turning the key once again within 5 seconds unlocks the other doors. 5 When trouble arises 473