Camera/Mirror Quirkiness

I have progressive lens.  If I intentionally look through the top part of the lens (distance) no problem.   It was using the part of the lens that I use for reading which is just a few inches away, that causes visual confusion. Many of the other ??? I have solved by searching the online 400+ page CT5 manual that I wish Cadillac had included.   I know, most buyers never read it; they settle for the quick start guides.  I am a bit weird on this.