I got the "Service Brake Assist" message last night. I just turned into a parking lot at maybe 20 mph stopped to back my car into a parking spot and the break felt weird and this messaged popped up. I shut down the car, finished my work in about 10 mins got back into my car, restarted it and no issue at all. Like nothing happened.
Contacted the service rep today morning and he said if it happens again setup an appointment immediately!! This happened at 7pm. 12 hrs before the service department opens the next day. How will they even run any diagnostic checks to find the issue when the issue cannot be reproduced?