I know the Mobileye marketing stuff touts traffic light detection and that this was originally expected to be an AP1 feature. I also know every time any of us have thought our cars independently braked for a traffic signal there's been some other explanation. But I'm wondering how sure we really are that this feature isn't, and never operates under any circumstances. Case in point: about a week ago I was driving, AP engaged, on a 2-lane road with a speed limit that dropped successively from 55 to 45 to 30. As you'd expect the car slowed from 60 to 50 to 35. In the course of this it also slowed for one or two tight curves. No surprise there. However, when I neared this intersection in the 30MPH zone, the car did a surprising thing. The light went yellow not long after it came into view (much further away than you'll see in the linked Street View image), and the car braked gently -- probably slowed me down to somewhere in the high 20s. The light went red, and the car braked quite a bit harder -- it nearly stopped before I took over. The change in braking effort exactly when the light went red probably surprised me most of all, though brake engagement exactly when the light went yellow was also a shocker. Late Saturday afternoon, not much traffic -- none at all once I got into the 30MPH zone in town, and no pedestrians or cross-traffic. Certainly no overhead signs on this local road in this small town. The only thing I can think of is that the cluster of road signs you can see on the right was mis-detected as a crossing or parked vehicle by the radar -- but I was centered in my lane and definitely not headed for the side of the road, so I wouldn't expect AP to slow so dramatically (nor in two distinct stages) for a parked car. In fact, conditions were probably just about perfect for unambiguous, camera-based detection of the traffic light state. What I'm wondering is, are we 100% sure this feature doesn't exist at all or is completely disabled, or is there some possibility that under ideal conditions, signals can be detected with enough confidence that the car will actually brake for them, and that this has quietly been turned on in some recent update? Software is 17.6.15.