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 Overview
Though gas mileage ratings for GM's full-size SUVs are impressive among their
competitive set, they aren't likely to bring smiles to anyone at the pump; their
combined ratings still linger in the ...
Sun Visors
Pull the sun visor down or unhook it and move it to the side to reduce glare.
Visor Vanity Mirror
Lift the cover to use the mirror and turn the lamps on. ...
Spacious, refined and versatile interior
The Acadia's interior features a "low and away" instrument panel that
enhances the feeling of openness in the front-row seats and provides a
commanding outward view. All interior element ...