1995 GMC Yukon Owner's Manual - Page 84

lgnition Switch Use your key to start your vellicle. The key lets you turn the ignition switch to five different positions: 1. OFF 2 2. RUN 3 5 3. START 4. ACC 5 . LOCK ACC (Accessory): ACC lets you use things like the radio and the windshield wipers when the engine is off. To get into ACC, push in the key and turn it toward you. Your steering wheel will remain locked, just as it was before you inserted the key. LOCK: This position locks your ignition, steering wheel and transmission. It's a theft deterrent feature. You will only be able t o remove your key when the ignition is turned to LOCK. OFF: This position lets you turn off the engine but still turn the steering wheel. It doesn't lock the steering wheel like LOCK. Use OFF if you must have your vehicle in motion while the engine is off (for example, if your vehicle is being pushed). RUN: This is the position for driving. START: This starts your engine. A CAUTION: On manual transmission vehicles, turning thekey to LOCK will a in lock the steering column and result loss of ability to steer the vehicle. This could cause collision. If you need to turn the a engine off while the vehicle is moving, turn thekey only to OFF. Don't press thekey release buttonwhile the vehicle is moving. 2-12