2003 Buick LeSabre Owner's Manual - Page 358

Footnotes The U.S. Environmental Protection Agency or the California Air ResourcesBoard has determined that the failure to perform this maintenance item will not nullify the emission warrantyor limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. * If your vehicle has the GM Oil Life SystemTM, a computer system lets you know when to change the oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving conditions, themileage at which an oil change wi!! be hdicated car! vag/ considerab!:/. F Q the ~ ilife ~ ! system to workproperly, you must reset the system every time the oil is changed. When the system has calculated that oil life hasbeen diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL SOON message will come on. Change your as soon as possible within the next two oil limes youslop ior iuei. ii is possibie lnai, i i you are ariving under the best conditions, oil life system maynot the indicate that oil changeis necessary forover a year. an However, your engine oil filter must bechanged at and least once a year at this time the system must be and reset, It is also important to check your oil regularly and keep it at the proper level. t If the s-vstem is ever reset accidentally, you must change your oil at 3,000 miles (5 000 km) since your last oil change. Remember to reset the oil life system whenever the oil is changed. See Engine Oil on page 5-13 for information on resetting the system. @ Whenever the tires are rotated, the Check Tire Pressure System (if equipped) must be reset. + A good time to check your brakes is during tire rotation. See Brake System Inspection on page 6-22. 3,000Miles (5 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.) 6,000 Miles (10 000 km) B Change engine oil and filter (or every 3 months, B whichever occurs first). An Emission Control Service. (See footnote *.) Rotate tires. See Tire Inspection and Rotation on nmw 5-64 fnr prnper rntatinn p t t e r n and additional - information. (See footnote @.) (See footnote +.) 1- - - 9 9,000 Miles (15 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.j 6-7