Originally Posted by Waitey
Kick down is triggered by the rate in which the throttle is depressed, not by a switch generally.
You'll get down changes for sure with speed of throttle movement, but the idea is you can use WOT, say in Drive using step' mode without a change down. You can then deliberately
pass the WOT position to get a kick-down. It has been like this for years with BMW autos.
Remember a full (aggressive) kick-down in the 8-speed can block change from 8th to 2nd gear in one move. That is one "wake up" manoeuvre you want to control.