Toolbird

i have a 96 subaru legacy L sedan and its an auto tranny. I started a few days ago with the same problem. my guess its the cold weather codswalloping with my car or its a bad sensor. either way i get the same red brake light and my e brake isn't engaged and my brakes feel stiff at first then they loosen up. i checked the brake fluid and its about half way full but i don't think that would be the cause of the problem. also my Abs light will kick on randomly and the only way to turn that off is to turn off the car and start it back up. any ideas?