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...
Forum Discussion
Majja13 wrote:
Are the Nav systems in the new trucks actual GPS or are the Cellular based GPS. Just form looking I would think the Nav systems would come down in price now that all the new trucks have the big old monitors in them.
The Nav is GPS based with onboard maps, just like garmin etc. If you call Onstar to have them download route/directions to you , then you will need to have cell service to contact Onstar and be in cell range (ATT service on later models) while the route is downloaded to the nav system.
