2008 Cadillac STS Owner's Manual - Page 453

If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last service. Remember to reset the oil life system whenever the oil is changed. See Engine Oil Life System on page 5-21 for information on the Engine Oil Life System and resetting the system. When the CHANGE ENGINE OIL SOON message appears, the following services, checks, and inspections are required: ❑ Change engine oil and filter. See Engine Oil on page 5-18. Reset oil life system. See Engine Oil Life System on page 5-21. An Emission Control Service. ❑ Visually check for any leaks or damage. See footnote (k). ❑ Inspect engine air cleaner filter. If necessary, replace filter. See Engine Air Cleaner/Filter on page 5-23. See footnote (m). ❑ Check tires for inflation pressures and wear. See Tires on page 5-57. If tire rotation is recommended for your vehicle, rotate tires. See Tire Inspection and Rotation on page 5-73 and "Tire Wear Inspection" in At Least Once a Month on page 6-10. ❑ Inspect brake system. See footnote (a). ❑ Check engine coolant and windshield washer fluid levels. If you have the 4.4L V8 supercharged engine, check intercooler fluid level. Add fluid as needed. ❑ Perform any needed additional services. See "Additional Required Services" in this section. ❑ Inspect suspension and steering components. See footnote (b). ❑ Inspect engine cooling system. See footnote (c). ❑ Inspect wiper blades. See footnote (d). ❑ Inspect restraint system components. See footnote (e). ❑ Lubricate body components. See footnote (f). 6-5