Hello fellow GMC owners! I'm starting this thread to share my experience with the Navigation System in our vehicles and gather tips from others. Some of us have found it to be a reliable companion on long trips, while others have encountered some quirks or frustrations. I'd love to hear your stories - what's worked well for you? What haven't we tried yet? Are there any hidden features or tricks that make the navigation system more useful? Let's share our thoughts and experiences!