Service break monitor system annnnnnnd

[Fowler]

So brought my truck to the garage because of a backup cam issue the camera is wicked dark in the night I had to add a led light bar under the tail gate, I would say the camera lost its brightness by 50 percent since new, then my am radio went and my screen goes blue and black and says to service rear camera assist or something and also my rear view camera screen thing when I switch from mirror to screen turns blue and shows a picture of a camera on it for about 10 seconds then the camera view comes on and the last issue seems like my head lights are about 30 or so percent less bright.  So those were the things I brought my truck in for this past week, so headlight either work or don't they told me I though was strange as led do get less bright over time, they said there was nothing wrong with my camera system even tho when I picked up my truck it was doing the same thing mins after I picked it up.  The stereo they have a replacement in for my to fix the am radio issues, and when I picked up my truck now the service break monitor system error comes up on the dic anybody have any advice for me