That's crazy! Mine worked right away, but it does take a few minutes sometimes for the app to 'connect' to the car for the NissanConnect functions & current data (door lock status etc), but to be expected with a cell connection really. Hope that TCU comes in soon and all is in working order afterwards! Did they say if anything else was controlled by the TCU that wouldn't be working either btw?Word is TCU is faulty and they are ordering a new one which will arrive ... no one knows.