45000 MI or 72000 KM

Inspect
    Air Filter Element
      Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change.
Replace
    Oil Filter, Engine
    Engine Oil
      Change engine oil and filter as indicated by the GM Oil Life System if equipped, (or every 12 months, whichever occurs first). Reset the indicator. Never drive the vehicle more than 16 000 km (10,000 miles) without and oil and filter change. The system will not detect dust in the oil. If the vehicle is driven in a dusty area, be sure to change the oil every 5 000 km (3,000 miles) or sooner.