Whirlpool WRX735SDBM diagnostic mode?

Hi all, I have a nearly-new Whirlpool french door model WRX735SDBM.

Yesterday I was standing in my kitchen and leaned my shoulder against the control panel without thinking and somehow put the fridge into a diagnostic mode that I couldn’t get out of until I pulled the plug.

It had the change filter light illuminated as well as a number that I could change up or down using the arrows. I’m guessing each number corresponded to a different test as one of them turned on all the display icons and one made the fridge start to hum.

Any hints on what I did, how I did it and how to get out of that mode if it happens again?

Thanks!

See the attachment for the tech sheet.