It wasn’t long after Apple changed the mechanisms of its MacBook keyboards that reports of sticky keys and other problems surfaced. Over time as anecdotal evidence mounted, it became apparent that the problem was widespread, but of course, only Apple knew exactly how common the issues were.

Now, in response to the keyboard problems, Apple has begun a keyboard service program to fix or replace keyboards with faulty butterfly switch mechanisms. From Apple’s support page about the program:

Apple has determined that a small percentage of the keyboards in certain MacBook and MacBook Pro models may exhibit one or more of the following behaviors:

• Letters or characters repeat unexpectedly
• Letters or characters do not appear
• Key(s) feel “sticky” or do not respond in a consistent manner

The program covers MacBooks and MacBook Pro models from 2015 onward. Service is free of charge for four years after the first retail sale of the computer. To check if your model is covered, visit Apple’s support page for a complete list of eligible models.

My MacBook Pro’s keyboard hasn’t failed, but I know several people whose keyboard has, and I’ve had a few occasions where keys would become sticky for a short period. If my keyboard ever fails, I expect it will be at the most inopportune time, but at least that hassle and frustration won’t come with a big price tag too.