Most of my experience with PB is more than just slowing. When I’m in heavy traffic and the car “slows” from 65 to 45 unexpectedly for no apparent reason and quickly enough that it creates a possible rear end collision situation, I call that phantom. No to mention unnerving. So many tailgaters out there. Even when I’m expecting it b/c it’s in the same location as it’s happened before, it still startles me. The rate of deceleration is more than just slowing, definitely is braking. Now I just flip TAAC off just before I get to those 2 spots. With the exception of those 2 locations which BTW are in construction zones, PB has almost become a non-issue.
I only notice PB when using auto-steering,, not just tacc. Darkened overpasses are the worst. Probably only once a month or twice a month right now. It's hard to explain - yeah the car is great it just tries to kill me sometimes.