2005 GMC Sierra 1500 Pickup Owner's Manual - Page 534

Scheduled Maintenance (cont'd) Service Check transmission fluid level and add fluid as needed. Inspect shields, vehicles with diesel engine or with GVWR above 10,000 lbs (4 536 kg) only. See footnote (n). Maintenance I Maintenance II • • Additional Required Services The following services should be performed at the first maintenance service (I or II) after the indicated miles (kilometers) shown for each item. Additional Required Services Service and Miles (Kilometers) Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Vehicles without a filter restriction indicator: Replace engine air cleaner filter. See Engine Air Cleaner/Filter on page 5-25. An Emission Control Service. 6-speed manual transmission only: Change clutch fluid. See footnote (l). • 25,000 (41 500) • • 50,000 (83 000) • • 75,000 (125 000) • • 100,000 (166 000) • • 125,000 (207 500) • • 150,000 (240 000) • • • • • • • • • • 6-6