2004 Toyota Prius Owners Manual - Page 144

-with smart function (on some models) NOTICE z The hybrid system cannot be started when the shift position is in "N". Be sure to put it in "P" and then start the system. z Do not leave the hybrid system in "ACC" or "IG−ON" for a long time. The auxiliary battery will discharge. z The hybrid mode in which the battery is discharged or disconnected is retained in memory, and that mode is turned on when power is applied. 1) "ACC" (Green indicator is turned on) Accessories such as the radio operate. Pressing the "POWER" switch briefly without depressing the brake pedal in the "OFF" mode turns on this mode. 25p105 In the "ACC" mode, pressing the "POWER" switch briefly while depressing the brake pedal will start the hybrid system. If you leave your vehicle in the "ACC" mode for about an hour, the hybrid system is automatically turned off. Without depressing the brake pedal 2) "IG−ON" (Amber indicator is turned on) All accessories are operable. Pressing the "POWER" switch briefly without depressing the brake pedal in the "ACC" mode turns on this mode. In the "IG−ON" mode, pressing the "POWER" switch briefly while depressing the brake pedal will start the hybrid system. 3) "OFF" (Indicator is turned off) The hybrid system is off. You may hear a motor sound in the engine compartment for a few seconds after the system is turned off and about 90 seconds have passed. Carrying a smart key allows you to operate the "POWER" switch without the key being inserted into the key slot. Each time you press the "POWER" switch briefly without the brake pedal depressed, the hybrid system mode changes in the order of "OFF", "ACC", "IG−ON" and then back to "OFF". The smart function can be set to become inoperative using the smart cancel switch. For details, see "Deactivating the smart function" on page 32. 132