How Important Are Final Transcripts at University of Illinois?

I'm getting a D in one class but above a C in the rest, an A in two classes, and a B in two others. Plus I'm taking three AP clases and the D wouldn't hurt my GPA dramatically, or my class rank. In fact it would stay the same as before. I'm worried I won't be able to change my grade though, So I need some assurance. Well I'm in High School and I got accepted at the university, do you guys think they'll reject me if i get a D, and i'm trying really hard, but only a couple weeks left to raise my grade.How Important Are Final Transcripts at University of Illinois?
Usually the last semester is meaningless unless you completely blow it.How Important Are Final Transcripts at University of Illinois?
You need to get a C in all classes. UIC doesn't like to see Ds in that final high school semester.