That's initially what I thought too. But, if you look at the photo of the seat trim plate, there is no detent for the pin to click into or indicate anything as it rides on the flat surface in the area that is circled. That is, it rides on that surface if it goes into the hole I indicated in my original photo.
If it goes somewhere else I can't figure out where that is. The tab that I have indicated with the thick arrow on the seat trim plate is actually what limits the travel of the lever when you are selecting forwards or backwards and there is a pin that fits into the space above that makes contact with the electrical portion of the switch to indicate forwards or backwards.
