2005 Chevrolet Colorado Owner's Manual - Page 99

Ignition Positions With the key in the ignition switch, you can turn to four different positions. ACC (ACCESSORY) (B): This is the position in which you can operate your electrical accessories or items plugged into the accessory power outlets. It also unlocks the steering wheel and ignition. Use this position if your vehicle must be pushed or towed. ON (C): This is the position that the switch returns to after you start your engine and release the switch. The switch stays in ON when the engine is running. But even when the engine is not running, you can use ON to operate your electrical accessories and to display some instrument panel cluster warning and indicator lights. START (D): This is the position that starts the engine. When the engine starts, release the key. The ignition switch will return to ON for normal driving. When the engine is not running, ACC and ON allow you to operate your electrical accessories, such as the radio or items plugged into the accessory power outlets. A warning tone will sound if you open the driver's door when the ignition is in ACC or LOCK and the key is in the ignition. LOCK (A): This position locks your ignition and transmission on manual transmission vehicles. It is a theft-deterrent feature. You will only be able to remove your key when the ignition is turned to LOCK. If you have a manual transmission, the ignition switch cannot be turned to LOCK unless the shift lever is in PARK (P). 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 it is, turn the steering wheel left and right while you turn the key hard. If none of this works, then your vehicle needs service. 2-17