2003 GMC Sierra 1500 Pickup Owner's Manual - Page 109

B (ACCESSORY): This position allows you to use things like the radio, power windows and the windshield wipers when the engine is off. Key Release Button (Manual Transmission) The ignition key cannot be removed from the ignition of manual transmission vehicles unless the On n.,.?ual transmissio.. Jehicles, tu...ing 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 engineoff while the vehicle is moving, OFF. Don't press the key turn the key only to release button while the vehicleis moving. Notice: If your key seems stuck in LOCK and you To remove the key on manual transmission vehicles, can't turn it, be sure you are using the correct key; if turn the key to ACC, then press the button and turn the key to LOCK. Do not hold the button in while turning so, is it all the way in? Turn the key only with the key to ACC. Pull the key straight out. it your hand. Using a tool to force could break the If key or the ignition switch. none of these works, then your vehicle needs service. C (RUN): This is the position for driving. D (START): This position starts your engine. 2-22