Apple confirmed in 2019 that a small number of the 2016 13-inch MacBook Pro could have backlight problems that caused bright bands to appear at the bottom of the screen, or the backlight to fail completely. At the same time, the company launched an international program to repair such devices for free.
Initially it was valid for 4 years from the date of purchase of the device, but now it has been extended to 5 years from the date of purchase or 3 years from the start of the program – depending on what’s longer in your case. That is, users can now apply for free repairs until at least May 21, 2022.
Specifically, 13-inch MacBook Airs (with both 2 and 4 Thunderbolt ports) released between October 2016 and February 2018 were affected. According to iFixit experts, the cause was shorter and flimsier stubs that Apple used during that period. In 2018, along with the release of the new MacBooks, the stubs were lengthened by 2 mm, which solved the problem.
If your computer is having backlighting problems and was purchased during the above period, contact an Apple Authorized Service Center. Details about the repair program are on the manufacturer’s official tech support site.