The over drive light on gear shifter will not turn off?

I press the button on gear shifter, and it does nothing. Over drive will not engage. Only have 3 gears on transmission while truck is in drive.

I'm not sure if this makes a difference or helps, but last time I drove the truck everything was fine and in working order. I did not drive truck for about 4 months. Battery was drained, so I jumped truck with a jump box. As I started to drive, I noticed my speedometer was not working at all along with the issue I am having with the column gear shifter (Over drive does not work or engage. OD button on shifter does not work. OD light stays on / blinking constantly) Please forgive me. I don't remember if OD light on gear shifter constantly stays on or light constantly flashes/blinks.

Is the speedometer not working related to problem with over drive on truck?