Apple has determined that under certain circumstances the rubber surface on some MacBooks may separate from the bottom case of the system. MacBooks shipped between October 2009 and April 2011 may experience this issue. Apple will replace the bottom case of any affected MacBook, free of charge, that exhibits the issue.

Bottom Case Replacement Process You may choose from three options to get a replacement bottom case for your MacBook. In all cases, your MacBook serial number will be checked to verify that it is eligible for this program.