I keep forgetting to post this question, but I encountered the same issue today and want to know what is wrong. I had an appointment north of my home this morning. I have been to that location a couple of times before, but it has been a year since I was there, so I asked Siri "Navigate to XXXX" and spoke the full address including city, state, and zip. Siri responded by pulling up a map just like the last few times, but Siri did not speak any directions to me during the drive to my destination. I rely on Siri telling me step by step directions as I drive so that I can keep my eyes on the road. The icon was on for roaming Internet. Why did not Siri tell me directions? I really must fix this, but I cannot figure out what, if anything, I am doing wrong. I did things the exact same way with my 5s, and Siri would tell me directions to any destination from wherever I was at the moment. Help! Thanks.