See also:

OnStar®
If the vehicle has OnStar and you subscribe to the OnStar services, please refer to the OnStar Terms and Conditions for information on data collection and use. ...

Power Steering Fluid
See Engine Compartment Overview for information on the location of the power steering fluid reservoir. ...

Engine Air Cleaner/Filter
See Engine Compartment Overview  for the location of the engine air cleaner/filter. ...