I don't have the luxury pack only front\rear sensors and it's fitted and works on mine. Set up is on the highline computer and it's controlled by the little silver mirror selector thingy. Turn the switch onto the left mirror and the left mirror dips, turn it onto the right mirror and it dips when reverse is engaged. As Snoopy mentioned earlier, you set the mirror dip position to suit you and it remebers this for next time
Oops, posted at the same time