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:
GMC Terrain in the Market
With the Equinox and Terrain, GM stands to regain some lost share in the
crossover market — if for no other reason than 32 mpg in an SUV is no small
feat. The Terrain is competitive otherwise, b ...
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system:
If the vehicle does not have Driver Information Center (DIC) butt ...
Using the Outside Mirror with the Blind Spot Mirror
1. Set the main mirror so that the side of the vehicle can just be seen and the
blind spot mirror has an unobstructed view.
2. When checking for traffic or before changing a lane, look at the main ...