2010 Cadillac CTS Owner's Manual - Page 421

Service and Maintenance 10-3 Scheduled Maintenance When the Change Engine Oil Soon Message Displays Change engine oil and filter. See Engine Oil on page 9‑10. An Emission Control Service. When the "Change Engine Oil Soon" message displays, service is required for the vehicle as soon as possible, within the next 1 000 km/ 600 miles. If driving under the best conditions, the engine oil life system might not indicate the need for vehicle service for more than a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset. Your dealer/retailer has trained service technicians who will perform this work and reset the system. If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000 miles since the last service. Reset the oil life system whenever the oil is changed. See Engine Oil Life System on page 9‑12. . Every Engine Oil Change . Windshield wiper blade inspection for wear, cracking, or contamination and windshield and wiper blade cleaning, if contaminated. See Exterior Care on page 9‑110. Worn or damaged wiper blade replacement. See Wiper Blade Replacement on page 9‑33. Tire inflation check. See Tire Pressure on page 9‑66. Tire wear inspection. See Tire Inspection on page 9‑73. If tire rotation is recommended for the vehicle, rotate tires. See Tire Rotation on page 9‑73. Fluids visual leak check (or every 12 months, whichever occurs first). A leak in any system must be repaired and the fluid level checked. Engine air cleaner filter inspection. See Engine Air Cleaner/Filter on page 9‑15. Change engine oil and filter. See Engine Oil on page 9‑10. An Emission Control Service. Engine coolant level check. See Engine Coolant on page 9‑18. Engine cooling system inspection. Visual inspection of hoses, pipes, fittings, and clamps and replacement, if needed. Windshield washer fluid level check. See Washer Fluid on page 9‑25. . . . . . . . .