Submitted by dswmd on Mon, 2018-12-31 22:05
Many are reporting a problem with sudden loss of the ability of the app to communicate with the car. A few have found that if they delete the app and reinstall it, the problem disappears. A few have reported it to be due to the car being in a location with no reception. I have had my Model S 100D for over a year with never a problem. Suddenly, after a home charge from a pretty low battery, my app could no longer communicate with the car. My wife's phone had the exact same problem at the exact same time.
I realized that there were no new app upgrades and both our phones (iPhone & Samsung) simultaneously lost the ability to communicate with the car, that it was a car based problem, not a phone or app based problem. As it was after a deep charge from a low state, most likely it was a "battery charge flux" related locking of the car software. I did a main console reset/reboot as follows:
1) Put in Park.
2) Press and hold both scroll wheels until main screen goes dark.
3) Wait for main console screen to come back up.
Then I tested the app and success! It worked flawlessly once again.
Have a happy new year!