Multiple random electrical issues

I’m having issues that are clearly electrical but I’m not sure what’s the culprit.
They are the following:

- Digital Odometer sometimes won’t light up.
Whenever I set cognition switch in the on position, the odometer lights up, then goes black, then comes back on after a clicking sound. Sometimes it stays on, other times it won’t even light up since the beginning at all. There doesn’t seem to be a pattern to it.

When the odometer fails to light up I have another issue that happens:
- Left turn signal doesn’t blink sometimes. It only starts flashing quickly on the instrument cluster, letting me know it’s not working on the outside. Again it does it randomly, not always along side the odometer, but only when odometer doesn’t light up, and only the left turn signal.

Final issue that is unrelated to the previous two, but also totally random:
- Door Ajar signal on instrument cluster lights up even if all the doors and tail gate are completely closed. This issue sometimes goes away after a while, and other times I need to disconnect battery for it to reset and not let go.

Any help on these issues would be greatly appreciated! I am more mechanical inclined but have never had to deal with electrical issues until now!
God Bless You!