OnStar®

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. See OnStar Overview&nb ...

Keys and Locks

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See also:

Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system ...

Vehicles with extended Off-Road Proengineering package
Basic settings The extent to which the vehicle is raised or lowered depends on the basic setting selected. Select: • Off-road level 3 for freeing the vehicle in impassable terrain at low s ...

Conventional (fixed speed) cruise control mode
This mode allows driving at a speed between 25 to 90 MPH (40 to 144 km/h) without keeping your foot on the accelerator pedal. WARNING ► In the conventional (fixed speed) cruise contr ...