You need to add some more information. Is the light coming on when you are actually engagging the ALb (such as on packed ice, and slamming the pedal down), or is the light always on? The ALB on these cars will show the ALB light when your brake fluid level is low, and the ALB system will shut down (most people do not activate thier ALB portion of the brake system more than 1 or 2 times a year) You will still have normal braking, but no pulsating peddle on ice or gravel. If the brake fluid IS low, don't just add fluid, your pad linings are likely low, and need to be replaced. This should restore the fluid level and turn your light off. If the light appears only when you try to activate the ALB system, and the car skids when you lock up the brake, then you have a computer or sensor issue on one of the wheels. Hope this kind of helps.