From another 2015 5.0 Ultimate driver, I've had my Genny stop behind stopped cars as well. My last car was a 2015 Grand Cherokee Summit and it never saw stopped cars, especially in the situation where you're following a car that's slowing down and then just before reaching stopped traffic at a stoplight, the lead car jumps over into a left turn lane, thus the car has to change which car it's looking at. Again, the Jeep would punch the gas in that situation (which would really piss my fiance off) and I'd have to manually and aggressively hit the brakes myself. The Genesis in the same situation will "refocus" on the new lead vehicle (assuming you aren't closing too quickly at that point) and apply the brakes harder to bring me to a stop. ALSO, I don't think it's as sensitive depending on which distance setting you're using. Mine won't stop behind slightly aggressive drivers in the closest following distance, but at the second, it's much smoother and seems to "see" more. I always drive mine in the second closest distance setting unless it's raining.
Also I read an article where someone was speaking with a Hyundai engineer about the technology in the car. One portion was specifically about adaptive cruise and why, when competing with the Germans, they would leave out a feature that's becoming increasingly common. The engineer's response basically stated that the hardware is all there for pedestrian/large animal detection just like with the Germans, but they lacked the additional development time to work through it all on the software side. Since, in this litigious age we live in, manufacturers have to over-validate a safety system like that in order to make claims in writing, they can't say that it is a feature because it's not been validated. But in actual practice, most of the time, it will work just like the other systems and react to pedestrians. It sort of blows my mind that this has happened to some members while others try to tell them it didn't. They experienced it with their own car! That means it's a thing!
Something I'm not as familiar with, that maybe some of you can provide input on: The AEB feature. Mine is 'on' in the dash settings, but I've never had the brakes apply automatically. I've had a few instances where, while using SCC the lead car has braked hard enough that the SCC system didn't think it could apply the brakes hard enough to avoid kissing their bumper and began flashing a red highlighted car in the HUD with "Caution!" underneath it at which point I applied more brake force myself. My Jeep (having "Forward Collision Warning with Brake Assist", not "Automatic Emergency Braking") would constantly see a car that was slowing to turn right off the roadway and JAB the brakes while beeping crazily and flashing a red BRAKE! warning on the dash display. Then if it decided I still wasn't paying attention (to the car I knew would be out of my way by the time I was at their location) it would apply 20% of total brake force (since that was all the system had a available to it) until the warning went away or I hit the brakes with my foot. I assume I just haven't been in a situation where the car thought a collision was imminent and went into full AEB. What happens on the HUD/DIC in an AEB situation?