Yes, this was posted a couple of months ago and there are threads about it here. It was part of the enhancement to the Guess-O-Meter, officially called the DTE (Distance to Empty) indicator. This is not the way to test your actual range as it is a black-box calculation that doesn't know where you are going or how fast.
You might want to start here:
www.lightningowners.com
then read up on PowerUp 22-PU1009-MIL-DTE
You might want to start here:

Don't trust the GOM! Best ways to calculate how far...
In EV forums there are always lots of new threads popping up from first time BEV drivers who are all worried or worked up because their Guess-O-Meter (GOM) is showing much less range than they think it should. This will especially happen in colder weather when the range drops. For new EV owners...
then read up on PowerUp 22-PU1009-MIL-DTE