electrical problem on 2010 Ford Crown Victoria

Speed odometer, power door locks, rear defroster, and speed odometer instrument panel lights are all not working.

Asked by for the 2010 Ford Crown Victoria
Assuming this is still under factory warranty - defnitely have the dealer check it out. It would seem to me that there is something in common that is causing the problems you are having. But it is unclear what that thing is until you start testing and tracing circuits.
1 more answer
Fuse F2 7.5 amp in the under dash fuse box powers all these circuits. I would have to suspect this fuse is blown for some reason.