Service ABS System
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The message center displays the service ABS system message when any one of many ABS-disabling DTCs is set. The electronic brake control module (EBCM) sends a serial data message to the driver information center (DIC) requesting this display.