45000 MI or 72000 KM

Lubricate
    Steering and Suspension
      Lubricate the front suspension, ball joints, steering linkage, transmission shift linkage, transfer case shift linkage, parking brake cable guides, and brake front axle. Ball joints should not be lubricated unless their temperature is -12 degrees C (10 degrees F) or higher or they could be damaged.
Inspect
    Fluid - Differential
      Inspect front/rear axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking.
    Brakes and Traction Control
    Air Filter Element
      Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary.
Replace
    Oil Filter, Engine
    Engine Oil
      Change engine oil and filter as indicated by the GM Oil Life System (or every 3000 miles 5 000 km, or 12 months, whichever occurs first. Reset the system.
Rotate
    Tires