Driver headlight staying on

[S550ROB]

My driver side headlight just started staying on after the cars shut off. Either that or it randomly turns on whenever it wants to and even killed the battery at once. Just the headlight, no corner lights or tail lights. I was thinking the bcm possibly but seeing if you guys had any experience before digging in! 2015 GT premium

Sponsored

 

[GT Pony]

First time I've head of this happening. Sounds like the BCM could be the culprit.