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:
Radio(s)
VOL/ : Press to turn the system
on and off. Turn to increase or
decrease the volume.
FM/AM: Press to select between
FM or AM.
: Press to select XM™,
if equipped.
TUNE/TONE: Turn to select ...
Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle.
The vehicle can also be controlled from a cell phone through the OnStar RemoteLink
mobile app. See www.onstar.com f ...
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification
and displaying the dexos certification mark are all that is needed for good performance
and engine protection.
En ...