GM Service Manual Online
For 1990-2009 cars only

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


Object Number: 806855  Size: B3

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.

A (OFF): This is the only position in which you can insert or remove the key. This position locks the ignition and transaxle. It is a theft-deterrent feature.

B (ACCESSORY): This position allows you to use things like the radio and the windshield wipers when the engine is off. This position will allow you to turn off the engine. If your vehicle has a column shifter, you will still be able to move the shift lever. Use ACCESSORY if you must have your vehicle in motion while the engine is off, for example, if your vehicle is being pushed or towed.

C (ON): This position is for driving. If your vehicle has a console shifter and you turn off the engine, the transaxle will lock. If you need to shift the transaxle out of PARK (P), the ignition key has to be in ON.

D (START): This position starts the engine.