Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push Q to try the call again or try again after driving a few miles into another cellular area. 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 operate if the battery is discharged or disconnected.
See also:
Engine Coolant Heater
The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged ...
Battery
Refer to the replacement number on the original battery label when a new battery is needed.
WARNING
Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known ...
Infotainment System Overview
The infotainment system is controlled by using the buttons on the faceplate and
the touch screen. See “Infotainment Control Buttons” in this section for more information.
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