Additional Required Services
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
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 | 25,000 mi (41 500 km) | 50,000 mi (83 000 km) | 75,000 mi (125 000 km) | 100,000 mi (166 000 km) | 125,000 mi (207 500 km) | 150,000 mi (240 000 km) |
|---|---|---|---|---|---|---|
| Inspect fuel system for damage or leaks. | X | X | X | X | X | X |
| Inspect exhaust system for loose or damaged components. | X | X | X | X | X | X |
| Replace fuel filter. An Emission Control Service. See footnote. | X | X | X | X | X | X |
| Replace engine air cleaner filter. Refer to Air Cleaner Element Replacement . An Emission Control Service. | X | X | X | X | X | X |
| Change automatic transmission fluid and filter (severe service). See footnote (h). | - | X | - | X | - | X |
| Change automatic transmission fluid and filter (normal service). | - | - | - | X | - | - |
| Automatic transfer case only: Change transfer case fluid. See footnote (g). | - | X | - | X | - | X |
| Replace spark plugs. An Emission Control Service. | - | - | - | X | - | - |
| V8 engine only: Inspect spark plug wires. An Emission Control Service. | - | - | - | X | - | - |
| V8 engine only: Inspect positive Crankcase ventilation (PCV) valve. An Emission Control Service. | - | - | - | X | - | - |
| Engine cooling system service (or every 5 years, whichever occurs first). An Emission Control Service. See footnote (i). | - | - | - | - | - | X |
| Inspect engine accessory drive belt. An Emission Control Service. | - | - | - | - | - | X |