hello onehundred80 !

you asked "you mean the light that says one of your bulbs is out" ?

i am not sure exactly what "Master Lighting Switch" means because i couldn't find that term anywhere in my owners manuel except on the symbol page and it just said "Master Lighting Switch" ,referring to that symbol that was on my dashboard.

i did check and both license plate bulbs are working- i checked every light i could see ...

what do you think ?

thank you for your help !

billy