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:
When the System Does Not Seem To Work Properly
If the LDW symbol does not appear:
○ The lane markings on the road may not be seen.
○ The camera sensor may be blocked by dirt, snow or ice.
○ The windshield may be damaged.
` ...
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 ...
Front Seats
The front seats have adjustable head restraints in the outboard seating positions.
WARNING
With head restraints that are not installed and adjusted properly, there is a greater chance that occupants ...