Generation 2 Chevy Volt (2016-2019)
Since I couldn't edit the original post here, I am creating a new one.
I have narrowed it down via trial-and-error. It affects iOS, Android, and even myvolt.com.
It seems to happen most often when my car is charging, either off of 240/220 or 120/110. After charging is complete, I can query the...