I'm not sure if this belongs in another section but anyway, I've noticed the last couple days the ebrake/parking brake light lit up on my dash at random times. I'll just be driving along and it will come on, then go out a few seconds or a minute or two later. So far as I can tell, my brakes and the ebrake itself are functioning fine, no noises or anything odd. When the ebrake light is "stuck" on, setting/releasing the ebrake itself won't make it go out, pressing gas or regular brakes seems to have no effect either I just have to wait for it to go off on its own. Kind of disconcerting to be going down the road and suddenly see that light pop up.

What is causing this?