Active handling display comes on occasionally while driving and brake pedal vibrates occasionally when applied. Feels like brakes are pulling when this happens. I checked 2 ground connectors under hood by headlights and ground connectors behind drivers side and passenger side kick panels. I am lost now, what else could be causing this?

 

1) What exactly does the "active handling display say" when it comes on?

2) When does this happen?

3) Does the brake pedal shudder happen only when this message is occuring or at other times?

4) Have you dumped out all the ECM and other codes? What do they indicate?