So I'm confused, why can't they use the Nav to tell what road they are on? The only time I have seen any issues with it is distinguishing between the HOV center lane and the main highway. Otherwise the roads have always matched up just fine for me even with the various construction and such. Because the nav that determines that is based on Google which is kept pretty current.
So interstate and highway... this should be definition at a minimum include the Interstate system (I-5 / I-95 / I-70 / etc), the US Highway system (US 50 / US 66 / US 1), and possible also state highways since most of those also post at 45MPH and above. What it would stop is city streets and other non-highway streets, and from the way it is worded all it is limiting is that you can't go above 45MPH on those non-highway streets. This really doesn't seem like much of a limitation to me. Or am I missing something? Even if I can't use it up and down the busy parts of route 1 (here in VA), that is fine, because the roads kinda shift and change so much that you shouldn't be really using it there in the first place. And TACC would still be available, and that is still quite useful on those roads. What exactly is the issue again?
Because the nav data is HORRIBLE, and frequently I drive on roads that it doesn't know exists, or thinks are still small windy roads when they've since been converted to 4 lane divided freeways. I can't imagine allowing that disaster of a system decide when I get to use AP or not.
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But I think this would be the first time that they explicitly add something like this to the release notes which then isn't there.
I'm quite puzzled, actually. Could it be that they need a map data update for this to work? Or there is some other secondary "thing" that needs to fall into place?
My feeling is that it is actually there, but that so few people have really tested it, and not very thoroughly, that we just haven't seen the outcry yet. I'm reserving judgement.
That said, some of the reports I've see that say it's not restricting, were flat out wrong in their testing. One said that they could set AP on a residential road so there must not be a restriction, when the release notes specifically state that the restriction only activates if you set the AP at above 45mph on a residential road. So they didn't even test the right thing there.
I'd be glad to be proven wrong, and if enough testing proves that the restriction does not in fact exist, I'll update, but until then I've reached my highest firmware version.