I have only owned an iPhone for a little over 1 year. The first was an iPhone 4 and now I have a "new to me" iPhone 6 but I am having an issue with GPS, maps and turn-by-turn navigation. Using the standard Apple maps app, I select a destination and tell it I am driving and hit Go. I get the first turn announced to me and that is it ! Dead silence after that. While someone else was driving, I noticed that the location on the map was very slow in updating. They would make a turn and 30-45 seconds later it would show up on the map. I this "normal" ? I also installed Google Maps and get the exact same results !