See also:

OnStar®
For vehicles with an active OnStar subscription, OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling servi ...

Cooling System
The cooling system allows the engine to maintain the correct working temperature. 3.9L Engine A. Coolant Recovery Tank B. Radiator Pressure Cap C. Electric Engine Cooling Fans 4.6L Engine ...

First Engine Oil Change After Every 80 000 km/50,000 Miles
• Engine air cleaner filter replacement. See Engine Air Cleaner/Filter. • Automatic transmission fluid change (severe service) for vehicles mainly driven in heavy city traffic in hot weathe ...