I know it has been a while since anyone posted on this topic, but I have experienced the same as redtomatoman. Just purchased a 2011 Journey and was using the Nav quite often this weekend. Sometimes the turns would show up in the cluster and sometimes not. I would expect this to work all the time.
I may depend on which screen is being displayed on the EVIC, due to activity on that screen , but I tried with several others with no luck. Has anyone had similar issues with the next turn only showing up intermittenty?