Something could be wrong with wiring and voltage supply, that your mechanic hasn't fixed yet.
because the lights need to adjust sometimes
turn them back on
The lights on your vehicle may be going dim because the bulb is getting ready to blow out. Try changing your bold and see if that helps.
a fuse
Two lights from the front two at the back. i wish i could change that but there you go
Lights don't go to "zero". Indicators possibly. This could also be part of the normal start-up routine where the gauges themselves may do this ... called a self-check of systems.
The running lights have a bad ground.
Bad socket? Bad ground? Problem in steering column switch?
I had a similar problem with a Pontiac some years back. It was a bad dashboard ground. It may not be it, but I would start there.
Check for a loose ground wire - sounds like lights are backfeeding searching for ground
loose head light switch
If you installed a trailer light set up you should go back and verify the connection or remove it to see it the problem goes away. I have had the same problem with other vehicles and yes the dash light are tied in with the tail lights.