Thank you for that.
Bottom line: We seem to have cleared the service indicator, so I'm good to go. Thank you for your help in this matter.
We have a 2019, so these instructions were close but not quite the same as to what I had to go through.
Even worse, when I went through these steps it was still indicating that "Service A" was due.
One of the steps asked me which type of oil I put in there. Of course, I had no idea, so I randomly selected one. When the message wasn't cleared I went through the steps again and chose a different type of oil. Eventually, I gave up.
Lo and behold, the next day, upon using the vehicle, the service message didn't show up anymore, so something I did must have done something, but it wasn't immediate and I don't know what it was.
Regardless, I appreciate your help. I couldn't have done it without you.
Additionally, I need to vent somewhere and the internet is a good place for that -- I now have a lesser opinion of MB and won't be purchasing one of their vehicles again. I feel better now. Thank you.