If you forget to turn off the power on a Toyota Prius, it will go into "sleep mode". This means that the car's computer and accessories will shut off, but the car's battery will still be connected to the engine. This is designed to prevent the car's battery from draining if it is left on for a long period of time.
The Prius's "sleep mode" is an important feature that can help to save you money on gas and prolong the life of your battery. However, it is important to remember to turn the car off completely when you are finished driving it to avoid accidentally draining the battery.
