2003 GMC Envoy Owner's Manual - Page 407

7,500 Miles (12 500 km) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 Rotate tires. See Tire lnspection and Rotation on page 5-58 for proper rotation pattern and additional information. (See footnote +.) 30,000 Miles (50 000 km) c1 Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. U Rotate tires. See Tire lnspection and Rotation on page 5-58 for proper rotation pattern and additional information. (See footnote +.) 0 Replace fuel filter. An Emission Control Service. (See footnote f . ) 0 Replace engine air cleaner filter. An Emission Control Service. 15,000 Miles (25 000 km) c1 Inspect engine air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote f.) J Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 Rotate tires. See Tire lnspection and Rotation on page 5-58 for proper rotation pattern and additional information. (See footnote +.) 37,500 Miles (62 500 km) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 Rotate tires. See Tire lnspection and Rotation on page 5-58 for proper rotation pattern and additional information. (See footnote +.) 22,500Miles (37 500 km) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. 0 Rotate tires. See Tire lnspection and Rotation on page 5-58 for proper rotation pattern and additional information. (See footnote +.) 6-6