Checkball Removal
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of GENERAL MOTORS CORP.
NOTE:
Do not use a magnet in order to remove the checkballs. The magnet may magnetize the checkballs, and the checkballs may attract metallic particles.
Remove the seven checkballs (1-7) in the channel plate.