Maps: ability to swipe step by step in turn-by-turn mode
I have been using Apple Maps in iOS 6 for the last 3 weeks. Sometimes when I push Route to start the turn-by-turn voice-assisted navigation to my destination, I am presented with what looks almost exactly like the start of the journey, except at the very top it says Step 1 of (#) and below that, the big green tile with instructions inside is actually swipeable! I can flick through and each time it moves to the next step, moving the map and changing the step number. There is literally nothing, as far as I can tell, that I do differently to make this happen. It happens only every once in a while, and it's a guessing game as to which navigating method will happen. I'm writing this post because I would live to know how to control this. For instances in which GPS is unreliable, being able to love between the steps is vital.
Is anyone else experiencing this?!
iPhone 5, iOS 6