1997 Mercedes-Benz S420 Q&A

1997 Mercedes-Benz S420 Question: how to fix my external light

I have a s420 97 my external light on the dash comes on when i step on the brake and put it in drive,it just started yesterday, -
Answer 1
ARE YOU TALKING ABOUT THE LIGHT BULB OUT INDICATOR LIGHT? IF SO THEN YOU HAVE A LIGHT BULB OUT. CHECK THE LIGHTS. -