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GrahamB
VIP Member
It’s not designed to slow down in relation to speed limits, only to provide alerts. ACC is to set cruise speed and adjust with traffic and that is entirely independent of traffic sign recognition.I set my ACC speed slightly above not because I want to arrive a few seconds earlier but to facilitate smoother passing of other vehicles that are often just a few clicks below the speed limit. It seems to work.
The VW software, not just for the speed limit "reading", is pretty pathetic when compared to American systems. I shouldn't have to envy my Fiat (ie Chrisler) driving friends' older generation systems.
I pretty well always drive with ACC and have never experienced any slowing down based on the speed limit reading system. If it slows unexpectedly without a car ahead it is usually a mis-reading of the situation, typically a slower vehicle in the exit lane or in a curve. Maybe it's just a speck of dirt flying up to the camera.
I have had the speed display jump up and down because the navigator mistakenly had me following a nearby road instead of the highway I was on and of course it is unable to interpret qualifying signs such as the ones that limit the speed for lorries.
There is a slight hope that a future software update could deliver a miracle but I won't be holding my breath waiting for it.