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 its cylinder could cause damage or break the key. Use the correct key and turn the key only with your hand. Make sure the key is all the way in. If it is and you have a manual transmission vehicle, turn the steering wheel left and right while you turn the key hard. If none of this works, then the vehicle needs service.

A (OFF): This is the only position in which the key can be inserted or removed. This position locks the ignition and shifter on automatic transmission vehicles, and the ignition and steering wheel on manual transmission vehicles.

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.

C (ON): This position is for driving. If your vehicle has an automatic transmission and you turn off the engine, the transmission will lock. If you need to shift the transmission out of PARK (P), the ignition key has to be in ACCESSORY or ON. The battery could be drained if you leave the key in the ACCESSORY 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.

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 the key from the ignition and take it with you. This will lock the ignition and transmission. 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.

Key Release Button (Manual Transmission)


Object Number: 829266  Size: A2

The key cannot be removed from the ignition of a manual transmission vehicle, unless the key release button is used.

To remove the key, do the following:

  1. Turn the key to ACCESSORY.
  2. Press and release the button and then turn the key to OFF.
  3. Do not hold the button in while turning the key to OFF.

  4. Pull the key straight out of the ignition switch.