GM Service Manual Online
For 1990-2009 cars only

The ignition switch is located on the instrument panel, to the right of the steering column.


Object Number: 1839823  Size: A3

There are four different positions. Insert the key in the ignition and turn it to the right for each position.

In order to shift out of PARK (P), ignition must be in the ON/RUN and the regular brake pedal must be applied.

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 all the way in. If none of this works, then your vehicle needs service.

(LOCK/OFF): This position locks the ignition, steering wheel and transmission. It is a theft-deterrent feature. This is the only position from which the key can be removed.

If the steering wheel is locked, move it from right to left and turn the key to ACC/ACCESSORY. If none of this works, then your vehicle needs service.

ACC (ACC/ACCESSORY): This position allows things like the radio and windshield wipers to operate while the engine is off.

(ON/RUN): This position is where the key returns to after the vehicle is started. With the engine off, the ON/RUN position displays some of the warning and indicator lights. The battery could be drained if you leave the key in the ACC/ACCESSORY or ON/RUN 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.

(START): This position starts the engine. Let go of the key when the engine starts. The key will return to the ON/RUN for normal driving.

A continuous warning chime will sound and a KEY IN IGNITION message will display on the Driver Information Center (DIC) if the key is turned to LOCK/OFF or ACC/ACCESSORY and the driver's door is opened.

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 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.