90000 MI or 144000 KM

Check
    Supercharger Oil
      Check the supercharger oil level and add the proper supercharger oil as needed (or every 36 months, whichever occurs first).
Replace
    Oil Filter, Engine
    Engine Oil
      Change engine oil and filter as indicated by the GM Engine Oil Life System if equipped, (or every 3 months, whichever occurs first). Reset indicator.
    Cabin Air Filter / Purifier
    Air Filter Element
Rotate
    Tires
      A good time to check your brakes is during tire rotation. Whenever the tires are rotated, the Check Tire Pressure System (if equipped) must be reset.