GM Service Manual Online
For 1990-2009 cars only

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


Object Number: 806855  Size: B3
A (LOCK): This position locks your ignition when the key is removed. The steering locks when equipped with a manual transmission. It is a theft-deterrent feature. You will only be able to remove your key when the ignition is turned to LOCK.

B (ACCESSORY): This position allows you to use things like the radio, power windows and the windshield wipers when the engine is off.

Caution: On manual transmission vehicles, turning the key to LOCK will lock the steering column and result in a loss of ability to steer the vehicle. This could cause a collision. If you need to turn the engine off while the vehicle is moving, turn the key only to OFF. Do not press the key release button while the vehicle is moving.

Notice: If your key seems stuck in LOCK/OFF and you cannot turn it, be sure you are using the correct key; if so, is it all the way in? Turn the key only with your hand. Using a tool to force it could break the key or the ignition switch. If none of these works, then your vehicle needs service.

C (RUN): This is the position for driving.

D (START): This position starts your engine.

Key Release Button (Manual Transmission)


Object Number: 807596  Size: A3

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

To remove the key on manual transmission vehicles, turn the key to ACCESSORY, then press the button and turn the key to LOCK. Do not hold the button in while turning the key to ACCESSORY. Pull the key straight out.

Retained Accessory Power (RAP)

Your vehicle may be equipped with a Retained Accessory Power (RAP) feature which will allow certain features on your vehicle to continue to work up to 10 minutes after the ignition key is turned to LOCK.

Your radio, power windows and overhead console will work when the ignition key is in RUN or ACCESSORY. Once the key is turned from RUN to LOCK, these features will continue to work for up to 10 minutes or until a door is opened.