Brake repair for ABS systems can be expensive if you do not know what you're doing, many mechanics may charge $150 ot $300 depending on how severe the problem is. Most ABS systems now need a simple cleaning instead of a ful fledged repair and in doing such erases that dreaded light off your dash.

Don't slam on your brakes too hard. Also get them serviced once you feel your car does not stop as quickly as it used to. This will avoid other problems in the long run.