What is ig mode in Toyota Prius?

IG mode in the Toyota Prius refers to the "Ignition" mode, which allows the vehicle's electrical systems to operate without starting the engine. In this mode, various electrical functions, such as the radio and dashboard displays, can be activated. It is typically used for checking settings or diagnostics without fully engaging the hybrid system. To enter IG mode, the driver usually presses the power button without pressing the brake pedal.