See also:

When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and mile ...

Engine Compartment Overview
When you open the hood on the 4.2L L6 engine, here is what you will see: A. Engine Air Cleaner/Filter. B. Engine Coolant Recovery Tank. C. Windshield Washer Fluid Reservoir. D. Power Steering Fl ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar sy ...