This is my experience, my MacbookPro 13" Touchbar 2016 just started having this backlight issue at the bottom of the screen right after a few months of warranty. Also when I recalibrate the screen, I found out that the maximum brigtness has decreased to a max of 165-175 cd/m using a i1 Display Pro (i1D3) with their supplied i1Profiler.I always calibrate my screen to 120cd/m, when I first got it, 120 cd/m is about 65-70% screen brightness using the slider in System Preferences > Displays. Now 120 cd/m is about 90% screen brightness. I’m going to give @Tyler+P. vendor a shot since I’m currently in town as well. p.s: I know for fact that once I take it to Apple or even if Apple decides to offer repair program on this I’ll be out of luck as they will blame that it’s related to this cosmetic crack caused by a headphone jack left sandwiched between the lid and the body.. F this.