Get the best price on a upgraded CD or SD card navigation update for a 2016 GMC.
307,684 new speed limits and restrictions updated.
676,483 new street and road names added or updated. The new release of the official GMC or GM navigation system update includes the following GPS map updates to the software’s database: 5 million more miles of roads and highways.These optimizations complement the many benefits of your in-vehicle navigation system. The Yukon update features fresh data that helps improve routing accuracy and fuel economy.