You’re probably right. This is the first vehicle I’ve had with many “smart” features, and I don’t know the nomenclature. To me, the effect is the same. Whether the median barrier is near because the road is curving sharply or someone pulls in front of me, the vehicle slams on the brakes. I understand this could be collision avoidance in both cases.
What is definitely (I think) the adaptive cruise control is when my vehicle overtakes a vehicle in the same lane. My vehicle will not slow down, as in easing off the gas, until it decides that it needs to slam on the brakes. Since it slams on the brakes in this situation, I extrapolated to the median barrier or car pulling in situation.