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 
to try the call again or try again after driving a few miles into another cellular area.
See also:
Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not require ...
Remote Start Ready
If the vehicle does not have the remote vehicle start feature, it may have the remote start ready feature.
This feature allows your dealer to add the manufacturer's remote vehicle start feature.
See ...
Selecting Tracks on an iPod or USB Device (Vehicles
without a Navigation System)
1. Press and hold or
while listening to a song until the contents of the current folder display on the radio display.
2. Press and release or
to scroll up or down the list, then press and hold ...