Brake System Indicator
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
The brake system indicator comes on when the EBD function is lost, the parking brake is applied, and/or the brake fluid level is low.