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  ...

Keys and Locks

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See also:

Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. ...

StabiliTrak® OFF Light
This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then goes off. Press and re ...

Braking precautions
The brake system has two separate hydraulic circuits. If one circuit malfunctions, you will still have braking ability at two wheels. You may feel a small click and hear a sound when the bra ...