brake

When i turn my engine on. And i turn down the handbrake the light on the dashboard doesnt turn off it stays dimmed but not off it wasent like that yesterday what could be an how can i fix it. The only thing i did before it happed is that i went to a school car wash. Please help

hey everyone - anyone have any idea what this could be? Has been happening for a few weeks now. As i slow down i can hear a knocking coming from the back of the car. But now it sounds like it's happening throughout the car. ha, great huh? I'm wondering if it's something to do with rotors, or...