I have a Taurus X with Nav and similar experience: No automatic upload. I had to go to the User Device | Advanced menu.
The install went fast, less than a minute. But the "Reboot" took several minutes.
I now see a display popup that 911 is active, but no voice. I also turned off other voice notifications (phone connected) that were annoying.
On first install, I got a warning that 911 didn't work and to visit the dealer. But since then I see the display 911 is active on every turn-on, so I ignore that one-time warning after the install.
The install didn't fix my probem with the Phonebook Download, where I have to approve each time I start up the car or the phone will disconnect. I continue to use my old fix to set the Phonebook Download to Manual in the Advanced settings. Then only do the download manually after modifying my cell phonebook. (Not very often at all.)