It too came out of a Volvo which had excellent sign recognition. The feature I loved on that car was the turning lane graphics - if you were on a four lane road (on each side) approaching a traffic light - it would tell you well in advance what lanes are turning lanes only and which ones you could go straight from -This is news to me having no such problem with my Volvo - it reads anything to do with speed accurately and I assumed Stinger was the same. How do they do that then??
Anyway, I digress. It is a minor disappointment that the Kia does not rely upon the camera seemingly required for the safety suite and instead relies upon a GPS system that must be updated. That being said, in my experience (which may be locality driven) the accuracy has been pretty good - albeit not flawless.