So much for avoiding!

I have a Corolla Cross XR (the one that supposedly has all the safety tech). One of the things it is supposed to have is “collision avoidance”. Based on the name, one would think it would help one “avoid a collision”. The other day I was driving in bumper to bumper traffic and, totally my fault, became momentarily distracted and went into the car in front of me. No warnings, no breaking and certainly no avoiding. I reported this to my local Toyota dealer and was told that the car will NOT do anything to avoid the collision if you are doing under 20 km/h! Isn’t that exactly what it is supposed to do?