1997 Chevy Lumina Lights inside go out

I bought my lumina about a month ago. Low mileage, in great condition. I love it, it drives great. The check engine light was on when I bought it but had a machanic glance at engine, he fixed some wire and said he just needed to reset. (Did this outside of work so I need to go back to reset.)
About 2 weeks after I bought car, I was driving at night and inside dash lights went out. I got them back on by turning the lights off of auto. Happened again 2 weeks later. Then a week ago the right blinker light inside stopped working. Outside blinker works. Low coolant light flashes some days and so does low track. Any suggestions?

Also trying to get a picture of where low intake valve is so I can add some 134A.

Thanks,
Diane