The dispenser water reservoir had a pin hole leak.

1. Turned off the water supply to the refrigerator.
2. Removed the front panel and disconnected the water line to the front left.
3. Removed the left rear (freezer side) panel and disconnected the reservoir from the main water supply input. This was a little tricky to figure out. You must push in the water line at the same time pushing in the coupling. Then pull the line out while keeping the coupling pressed in.
4. Removed the screw that holds the reservoir to the back of the refrigerator.
5. Pulled the old reservoir out and replaced it with the new one.
6. Basically the rest is the reverse of the above. It took a little bit to fish the lines through the original path they came.

Overall this was an easy repair. If I had known how the coupling in step 3 worked this would have been a 15-minute project.