I have a 2016 passion coupe. 6300 miles thereabouts. Bought it one week ago and had a 'Smart' mechanic give her a thorough going over, on the lift and full diagnostic. This morning drove took a 10 minute drive and home. As I pulled into the driveway, braking to stop, a message came up on the dash.. "Brake Assist Inoperative". What happened? It felt okay, but what if anything did I do, or did I do anything to cause that malfunction?? Thanking you in advance!