В выложенной здесь инструкции (
http://prius-club.su/index.php/topic,4066.0.html) есть расшифровка значков панели, это по второму:
Parking lock system warning light (warning buzzer)
Indicates a malfunction in the P position control system
• In this situation, there is a possibility that the parking
lock mechanism will not work. When parking, park the vehicle on a flat surface and apply the parking brake securely.
• The “POWER” switch may not be turned off. If this hap- pens, applying the parking brake will enable the switch to be turned off.