2007 Pontiac Vibe Owner's Manual - Page 104

(C) ON: This is the position the switch returns to after you start your engine and release the switch. The switch stays in the ON position when the engine is running. But even when the ignition is not running, you can use ON to operate your electrical accessories, including the ventilation fan and 115 volt power outlet, and to display some warning and indicator lights. The battery could be drained if you leave the key in the ACC or On position with the engine off. You may not be able to start your vehicle if the battery is allowed to drain for an extended period of time. (D) START: This position starts the engine. When the engine starts, release the key. The ignition switch will return to ON for normal driving. When the engine is not running, ACC and ON allow you to operate some of your electrical accessories. A warning tone will sound if you open the driver's door when the ignition is still in ACC or LOCK and the key is in the ignition. Key In the Ignition Never leave your vehicle with the keys inside, as it is an easy target for joy riders or thieves. If you leave the key in the ignition and park your vehicle, a chime will sound, when you open the driver's door. Always remember to remove your key from the ignition and take it with you. This will lock your ignition and transaxle. Also, always remember to lock the doors. The battery could be drained if you leave the key in the ignition while your vehicle is parked. You may not be able to start your vehicle after it has been parked for an extended period of time. Starting the Engine Place the transaxle in the proper gear. 104