As well as the built in satnav in my Kia, I also have a TomTom satnav and I get "free for life" (i.e. the life if the device!) map updates 4 times a year for UK and Europe (with a myriad of minor updates gleaned from users at other times). Whilst I would not necessarily expect updates to pick up minor amendments on minor roads, I would expect some effort to be made to incorporate significant changes to major routes (similar to those described in my post above) in a timely manner. These road changes do not occur overnight and there is plenty of warning during construction etc., that the map makers should be aware of.I recall reading once that the (as was) 'Navteq', now 'Here' organisation, that produces mapping for our KIAs, among other makes, endeavoured to update about 15% of their maps annually.
Given that the maps built into our cars cover, not only the UK, but all of Europe, perhaps it is a bit of a stretch to imagine that every recent improvement, or addition/deletion of roadway will be bang-on, up-to-date in every neck of the woods.
Not even the mighty Google is that good, day-in, day-out!
If the best that Here can do is revisit 15% of their maps annually then I suggest they do need to up their game and if necessary increase their resources to do better. Kia only update maps once per year (on average) and by the time those are released they are at best months out of date. Yes, Google, which I also use, will not always be correct "day-in day out", but they are a lot better than a year or more out of date. The scale of the Here operation should not be the concern of users. It is up to Here to ensure that the offering to car manufacturers is as up to date as possible without the limitations of their resources being the major factor affecting accuracy. ,
Car manufacturers (and I do not mean just Kia) include satnav as a selling feature on their cars, and the least that owners can expect is that the offering is fit for purpose and not likely to direct you on to closed or illegal routes.