GM Service Manual Online
For 1990-2009 cars only

Object Number: 810987  Size: A3

With the key in the ignition, you can turn to four different positions.

Notice: Using a tool to force the key from the ignition switch could cause damage or break the key. Use the correct key and turn the key only with your hand. Make sure the key is in all the way. If none of this works, then your vehicle needs service.

OFF: This is the only position from which you can remove the key. This position locks your ignition and transaxle. It is a theft-deterrent feature.

ACC (Accessory) : In this position you can operate your electrical accessories such as power windows, audio system, windshield wipers, and sunroof, if equipped.

ON: This is the position the switch returns to after you start your engine and release the switch. Even when the engine is not running, you can use ON to operate your electrical accessories and to display some instrument panel cluster warning lights. This is the position for driving your vehicle.

START: This position starts the engine. When the engine starts, release the key. The ignition switch will return to ON for normal driving.

Even if the engine is not running, ACC and ON are positions that allow you to operate your electrical accessories.

Key Reminder Warning

If you leave your key in OFF you will hear a warning tone when you open the driver's door.