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:
Roadside Service
(Mexico)
As a new owner, your vehicle is
automatically enrolled in the
Roadside Assistance program.
The services are available at no
cost under the terms and conditions
of the program. The Roadside
...
Tires
Every new GM vehicle has high-quality tires made by a leading tire
manufacturer.
See the warranty manual for information regarding the tire warranty and
where to get service. For additional infor ...
All-Wheel Drive
Transfer Case
When to Check and Change Lubricant
The transfer case is filled with oil during manufacture, which then does not
require changing. It is not necessary to regularly check the transf ...