I don't know if the wife left the FOB in the car? I'm usual listening for the confirmation beep and look back to see if the side mirrors fold-in. I know the MDX won't do that if a key is in the vehicle. Good chance that was the issue that night.When I’ve had this experience it’s always been because there was another fob already in the car. Happens once in a while when my wife and I go somewhere and she leaves her purse with her keys in the car when we park it. Remote start won’t work if there is a fob in the car.