Is cruise control linked to combination meter at all?

2009 Prius with ~190K miles
12V battery replaced within last year or so
Original hybrid battery

Intermittent issues:
1. Dash lights black on startup. Seems to be in cold, damp conditions. Seems to resolve after restarting car, driving the car a bit, and/or unplugging the white connector to 12V battery and reconnecting. Happened several times last winter (NY) and just happened again on two of our first colder, wetter days this year. The second time this year, #2 below also happened...
2. I couldn't turn the car off and, upon recollection, had no back-up lights. I tried putting the FOB in and it got "stuck". Drove around a bit and all issues resolved. (I didn't know about the 3-second start-button push until jumping on here. )
3. On usually separate occasions than #1 and #2 above, the cruise control is "easily" disengaged when hitting a bump. I drive the same road at the same speed. Most of the time cruise control works just fine. But it disengages seemingly under cold (and maybe dampish, IDK) conditions lately, basically similar conditions to #1 and #2 above. I do not see or, at least catch, the VSC light coming on during those events.

I've searched the forums as best as I could and generally found that:

#1 and #2 seem to be indicative of a failing combination meter and
#3 seems to be related to the brake light switch.

Is it possible at all that these issues are related? If so, how so and what can I do for resolution?

I asked my service provider about these last year when they were happening, but because they couldn't replicate them, they shrugged their shoulders. They seemed to go away over the summer, but now the issues are back. I'd love to be able to point them in a direction, if possible.

P.S. I've watched the video on how to replace the combination meter. I've noted the options for getting refurbished meters. This site rocks! I'm just wondering if there is some other common cause I am missing... TIA