I need help, my lamp out signal turns on when I turn head lights on and turn signals
every thing works fine till I turn the signal on and all turn signals work and don’t make sound when I don’t have head lights turned on

 

Probably a tail light issue, do high and low beams both work? Taillight boards are problematic in these, corrosion and such if there isn't an obvious bulb out

 

I had the same issue for 6 months bulb out warning. All lights worked. Finally a brake light went out. Had to replace in pairs. Since the bulb out warning works by comparing resistance across the circuits. Guessing the one bulb was on it's way out.

 

same thing was happening to mine and would even stop and then come back on multiple times while driving then my front left blinker went at the same time as my rear.