Apple this week extended its global 13-inch MacBook Pro display backlight service program, authorizing eligible laptops with a warranty period of up to five years from the original purchase date, or a maximum of three years from the start date of the program ( Whichever is longer). The last deadline was four years after the original purchase date.
Apple determined that a "very small percentage" of 13-inch MacBook Pro machines sold between October 2016 and February 2018 may show vertical bright areas at the bottom of the display or the backlight will not fully work, so in 2019 The program was launched on May 21, 2015. Eligible models include MacBook Pro (13-inch, 2016, two Thunderbolt 3 ports) and MacBook Pro (13-inch, 2016, four Thunderbolt 3 ports).
To determine which Mac model you have, click the Apple logo in the upper left corner of the screen, and select "About This Mac" from the menu. Apple has not yet extended the program to any other MacBook models.
Apple or Apple authorized service providers will replace the display on the affected 13-inch MacBook Pro unit free of charge. To start the repair process, visit the "Get Support" page on the Apple website. If you think your MacBook Pro is affected by this issue and have paid to repair the monitor, you can contact Apple for a possible refund.
In 2019, the repair website iFixit reported that the backlight problem was caused by a delicate flexible cable that would wear out and break after repeatedly turning the display on and off on the affected 13-inch MacBook Pro models. Apple has extended the length of the flexible cable by 2mm in the 2018 model, which seems to solve this problem.