They do. Every time you back up and step on the brake, it activates the self adjuster. It has it's limitations. If you don't know how to manually adjust your drum brakes, have your mechanic do it for you. If you feel your brake pedal is mushy or you have to push it almost to the floor, it may mean your rear drums need adjusting.
Caliper slides frozen? Rear drum brakes? May need to be adjusted
You either got the wrong master cylinder or you haven't actually bled all the air out of the system.
The 2010 Nissan Xterra has .
The 2013 Nissan Quest has .
The 2012 Nissan Xterra has .
The 2014 Nissan Quest has .
The 2014 Nissan Xterra has .
The 2010 Nissan Pathfinder has .
The 2012 Nissan Sentra has .
The 2010 Nissan Sentra has .