2004 Chevrolet Colorado Owner's Manual - Page 287

How to Reset the CHANGE OIL Message The GM Oil Life System calculates when to change your engine oil and filter based on vehicle use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where you change your oil prior to a CHANGE OIL message being turned on, reset the system. Always reset the engine oil life to 100% after every oil change. It will not reset itself. To reset the CHANGE OIL message, do the following: 1. Display OIL LIFE on the DIC. 2. Press and hold the reset stem. The oil life will change to 100% and a beep will sound. 3. Turn the key to LOCK. If the CHANGE OIL message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure. What to Do with Used Oil Used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help. Engine Air Cleaner/Filter The engine air cleaner/filter is located on the passenger's side of the engine compartment. See Engine Compartment Overview on page 5-12 for more information on location. 5-17