Brake light message
 

Hi all. I have a 2005 A4 Quattro 1.8 T with about 100K on her. I have a "Brake Light" message in the notification screen. When you hit the service button it says Brake Light in yellow and Center Brake Light in red. I have checked and all of the brake lights are working. How can I removed this message? Just an FYI. I have not had the car long and it is my first Audi. Thanks
Dan