the brake light, auto transmission temp light, and voltage light came on all at same time on dash, what is issue?

What is your question?

I have check brake fluid, it is perfect, also let car rest to cool transmission, however, not pulling load, and indicator on alt gauge is good.....so makes me think all 3 of these going on at same time, is trying to indicate some other issue?

What makes this problem better or worse?

none

How long has your 1992 Toyota Land Cruiser had this problem?

2 days