Self-diagnostic Function
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 ACC system has a self-diagnostic function. If the self-diagnostic function detects a malfunction, the ACC system stops control, turns on the ACC indicator (amber), and stores DTCs.