See also:

Tips and Troubleshooting Chart
Problem Recommended Action There is no power. The ignition might not be turned to ON/RUN or ACC/ACCESSORY. The picture does not fill the screen. There are black bord ...

Climate Controls
The vehicle's heating, cooling, defrosting, and ventilation can be controlled with these systems. Climate Control System A. Fan Control B. Air Delivery Mode Controls C. Temperature Control ...

Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, ...