Stage Light effect on MacBook Pro 2016

If it is a 2016 13-inch, do this:

13-inch MacBook Pro Display Backlight Service Program - Apple Support

This is a no-charge repair service Apple instituted for the models listed in that article.

DavidCinema wrote:

My MacBook Pro 2016 model just developed the "Stage Light" effect at the bottom of the screen. This clearly seems to be a defect in the computer, and seems like a common issue. What should I do?

Take it in—

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Outside the USA

https://locate.apple.com/country

From iOS device using the app online Genius Bar appointment:

https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8

Service Program for the 13" only—not the 15" at this time.

13-inch MacBook Pro Display Backlight Service Program - Apple Support