Anti Lock Break Light ?

I can not find my manual for the 2007 Smart Car ForTwo Passion, and I think it is the anti lock brake light that keeps coming on the dash (to the right of the speedometer, etc) when I start the car. However, whenever I push the anti lock brake button (underneath the stereo) the light goes off. #1, is this the anti lock brake light ?( it is the symbol of a ! with a jagged line underneath it surrounded by large parenthesis). #2, any ideas what this may mean? And, #3, where can I go in MI to get this checked out? Any info. would be greatly appreciated.
Thanks