Automatic headlights on 2001 Chevrolet Suburban 1500

My automatic headlights have stopped coming on automatically, i have to manually turn them on. Is there a fuse that i can change out or is it more in dept.

Asked by for the 2001 Chevrolet Suburban 1500
I doubt it is just a fuse. I would suspect a problem with the light sensor which is front and center on the top of the dash baord.