See also:

Charging System Light
The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. The light turns off when the engine is sta ...

Dome Lamps
The dome lamp is located in the overhead console. To change the dome lamp settings, press the following: (Dome Lamp Override): Turns the lamp off, even when a door is open. (Door): The la ...

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...