2001 Buick Century Owner's Manual - Page 93

LOCK (B): Before you put the key into the ignition switch, the switch is in LOCK. It's also the only position from which you can remove your key. This position locks your ignition, steering wheel and transaxle. It's a theft-deterrent feature. OFF (C): This position lets you turn off the engine but still turn the steering wheel. It doesn't lock the steering wheel. Use OFF if you must have your vehicle pushed or towed. RUN (D): This position is where the key returns after you start your vehicle. With the engine off, you can use RUN to display some of your warning and indicator lights. START (E): This position starts your engine. A warning chime will sound if you open the driver's door when the ignition is in OFF, LOCK or ACC and the key is in the ignition. NOTICE: If your key seems stuck in LOCK and you can't turn it, be sure you are using the correct key; if so, is it all the way in? If it is, then turn the steering wheel left and right while you turn the key hard. But turn the key only with your hand. Using a tool to force it could break the key or the ignition switch. If none of this works, then your vehicle needs service. 2-23