Workshop Repair and Service Manuals GMC SIERRA
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Maintenance Schedule

Tire Rotation and Required Services Every 12 000 km/7,500 mi      Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation on page 10?68. • Check engine oil level and oil life percentage. If needed, change engine oil and filter, and reset oil...
Footnotes — Maintenance Schedule Additional Required Services — Normal      a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed. b) Or every four years, whichever comes first....
Engine Oil Change      When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not indicate the need for vehicle...
Owner Checks and Services      At Each Fuel Stop • Check the engine oil level. See Engine Oil on page 10?7. Once a Month • Check the tire inflation pressures. See Tire Pressure on page 10?62. • Inspect the tires for wear. See Tire Inspection...
Footnotes — Maintenance Schedule Additional Required Services — Severe      a) Extreme service. For vehicles mainly driven off-road in four-wheel drive or used in farming, mining, forestry, Department of Natural Resources (DNR), or snow plowing. b) Check all fuel and vapor lines and hoses for proper...