So maybe I'm just missing something but I noticed today that if I'm sitting in the Ascent with it running and in Park I can't open the rear hatch from the button on the on the dash. It just beeps 3 times and nothing happens. As soon as I turn off the vehicle then it works. Is this as designed? There are lots of times when I pull up somewhere to pick up my wife and she has stuff she wants to put in the back so I'm hoping I'm just missing something here. Thanks!