Doesn't BB 10 maps download data from a TomTom (or other commercial) repository? If it does you might expect maps to be updated as downloaded. If not, I don't know what I'm talking about, which is quite likeley [emoji1787]
What I have noticed about bb10 maps more recently is it's reluctance to update background maps while on the road, meaning that you can be driving with voice guided satnav but no visual maps. This has become an increasingly frequent issue over recent months on my Q10.
There is another native app Navfree that some report as working well. That app downloads and stores all map data on the handset.
There's more maps discussion on this thread
https://forums.crackberry.com/showthread.php?p=13306214