2005 Buick LeSabre Owner's Manual - Page 352

However, your engine oil and filter must be changed at least once a year and at this time the system must be reset. It is also important to check your oil regularly and keep it at the proper level. If the system 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 Life System on page 5-17 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 6-23. 15,000 Miles (25 000 km) ❑ Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. (See footnote *.) ❑ Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter on page 5-18 for more information. An Emission Control Service. (See footnote †.) ❑ Rotate tires. See Tire Inspection and Rotation on page 5-63 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 7,500 Miles (12 500 km) ❑ Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. (See footnote *.) ❑ Rotate tires. See Tire Inspection and Rotation on page 5-63 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 22,500 Miles (37 500 km) ❑ Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. (See footnote *.) ❑ Rotate tires. See Tire Inspection and Rotation on page 5-63 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 6-14