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:
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 mobile app.
See www.onstar.com for coverage ...
AM-FM Radio
Control Buttons
The buttons used to control the radio are:
RADIO/BAND: Press to turn the radio on and choose between AM, FM, and XM™, if equipped.
(Menu/Select): Turn to search for stations a ...
Rear Door Security Locks
Your vehicle may have this feature. You can lock
the rear doors so they cannot be opened from
the inside by passengers. To use one of
these locks do the following:
1. Open one of the rear doors. ...