I've posted similar issues with other display settings like my color that keeps defaulting but I'm starting to notice the same thing with the shift indicator as well. I'll go to fire up the car and the gauge display will show the shift indicator at 4000 RPM when I go to the setting it's set to...
So coming from a 2015 GT mustang this generation Mustang is way more of a pain in the ass to change the oil then previous years for one reason. That damn engine bottom cover with no access panel. Had to take off like 15 plus screws just to remove that dang thing. Besides that pretty...
Just wanted to provide an update to close this out I ended up taking the car to a muffler shop and sure enough the rear clamps on both sides were both loose. Took care of the condensation issue and the pipes sound much better now.