Mine sometimes won't show D. The selector switch under the shifter console is either dirty or loose. If I bump the shifter after its in drive towards "3", it'll display "D" on the dash. Funny thing too, if the dash doesn't show the "D" is when my transmission bangs into gear and gets all erratic in shifting, but when the "D" is shown, or when I'm in S 1 2 or 3, all is fine. Switch is definitely the culprit there.