3500 Sierra Denali navigation system
Just purchased my new 2015 Sierra. Have a couple of questions on the Navigation system. 1. The Truck is equipped with the navigation system as well as onstar. If I do not keep onstar will I loose th...
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Nav will continue to work. However, what I don't know is if the Nav maps/info will be updated or not. With onstar, I believe that keeps the maps updated.
