From another site: If you make the adjustment below to your truck via FORScan it enables the missing HUD features if you don't have them. I believe the PSD is for Diesel engines. I haven't used FORScan before so I can't tell you anything more, nor have I done it myself.
Navigation Display on HUD
APIM
7D0-05-01
x*xx
xxxx
xx--
If 1 (Gas) change to 2, If 5 (PSD) change to 6