I've been having a problem for a long time with advancetrac. Sometimes the car is fine, sometimes it says service advancetrac before I start the car, and sometimes it errors and says service advancetrac if I hit a bump. The problem is too inconsistent for me to troubleshoot. So, does anyone have a hookup at a Ford dealership or can scope it for me and tell me what's wrong? It's hurting the car at autocross because when the message shows up it disables ABS.

Car is a 2013 Mustang