I've seen similar problems on this site but not exactly,
I used to just get the three lights coming on in cold weather mostly (BAS/ESP, ABS, and ETS) or going over major bumps.

Now, they all come on at the same time a buzzing starts from the area where the brake lines all come out of (left front). The buzzing continues even after I turn off the car for a while.
I can feel the vibration from it in the brake pedal, In fact stepping on the brakes reduces the noise momentarily.
This happens almost every time I drive now, since starting a couple days ago.
About to take it in, but would like some input if anyone is familiar.

Thank you in advance.

Scott