Following a utube video made it easy. Removed the outer cover of the door to expose latch. Two screws remove the latch, pay attention to how it was positioned and put the new one on and then replace the panel. But first turn off the electricity to the unit at the fuse box.
Turned off power to the dishwasher. Removed the front panel via the screws on the inner wall of the door. Lifted and pulled out the front panel. Disconnected cable connections to fully remove the front panel. Pressed down on the latches to the left and right side of the door latch. Pulled out the door latch. Put in new door latch until it clicked into place. Reattached cable connections. Put the front panel back on with the screws. Turned back on power to the dishwasher.
Initial inspection of the issue and research suggested the door latch was malfunctioning / broken. I bought the part and expressed it home. The installation involved removing the door screws on the inside of the door, separating the front and back panels, unplugging the door latch, removing it from its niche and popping in the new one. Reverse the take apart and it was done. Very simple swap. Hardest part was juggling the two halves of the door and preventing the door for trying to close in the process as the bulk of the weight is in the outside half of the door.
The new part did not fix the issue. The door strike was the next part that could be broken / malfunctioning. I ordered that part as well and replaced it. In the process of replacing it I found that the original door strike had been installed upside down. I am guessing it was installed at just the right pitch, or maybe even bent at the manufacturing facility, so that it latched. No idea how it managed two years like that. I installed the new one correctly and the door latches perfectly. Both parts I removed from the unit I will retain if my new parts should fail in the future.