Went to start my car 9/4/22 had to use key to open door, but the battery was completely dead. Used jump starter to get it running and found out online that it was possible Sync system would not shut down when it was off. Seems as though sync does not power down when you shut the vehicle off and keeps searching for a signal. Tried to find out if I could manually shut sync off but found no information. My vehicle is 2014 Ford Escape SE and have come to find out through online searches that this model and year seems to have significant problems with many features that import safety.