Battery Voltage and Charging Messages

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OnStar® Hands-Free Calling
OnStar® Hands-Free Calling allows eligible OnStar® subscribers to make and receive calls using voice commands. Hands-Free Calling is fully integrated into the vehicle, and can be used with OnSta ...

Dome Lamps
The dome lamp controls are located in the overhead console. (Dome Lamp Override): Press to turn the lamps off, even when a door is open. (Door): Press to turn the lamps on automatically when ...

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 batter ...