2003 GMC Sonoma Owner's Manual - Page 375

6,000 Miles (IO 000 km) 0 Change engine oil and filter (or every 3 months, 0 Check readfront axle fluid level and add fluid as whichever occurs first). An Emission Control Service. Cl Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #-) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See Footnote **.) 0 Rotate tires. See Tire lnspection and Rotation on page 5-66for proper rotation pattern and additional information. (See footnote +.) needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 Rotate tires. See Tire lnspection and Rotation on page 5-66 for proper rotation pattern and additional information. (See footnote +.) 15,000Miles (25000 km) 0 Change engine oil and filter (or every 3 months, 0 0 9,000 Miles (15000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 0 whichever occurs first). An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) Inspect engine air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote f.) Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 12,000Miles (20000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 6-8