GM Service Manual Online
For 1990-2009 cars only

Object Number: 806855  Size: B3

Use the key to turn the ignition switch to four different positions.

A (LOCK) :  This position locks the ignition and transmission. It's a theft-deterrent feature. You will only be able to remove the key when the ignition is turned to LOCK.

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.

B (ACCESSORY) :  This position lets you use things like the radio and the windshield wipers when the engine is off.

Notice: Lengthy operation of features such as the radio in the accessory ignition position may drain the battery and prevent your vehicle from starting. Do not operate your vehicle in the accessory ignition position for a long period of time.

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

D (START) :  This position starts the engine.

Retained Accessory Power (RAP)

Your vehicle is equipped with a Retained Accessory Power (RAP) feature which will allow certain features of your vehicle to continue to work up to 20 minutes after the ignition key is turned to LOCK.

Your radio, power windows, sunroof (option) 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 20 minutes or until a door is opened.