Have you checked for recalls on your model of vehicle?
Have you searched the web for info regarding your vehicle type and any braking problems?
Certainly your post here may have members or searchers that have information they can share but if you provide details of the make, model and year that will help identify if we can help answer your questions better.
There is quite a recall section here being updated by @Fred123 that on a search of the Community might be able to give you an answer.
Some results on searches re AEB both on the Community and the Web
