How do i adjust the automatic transmission selector indicator

SOURCE: My gear shifter is indicating the wrong position.

The manual linkage needs to be adjusted. The exact procedure is different with the different vehicles.

SOURCE: the tach needle is over by the gear selector

I had same issue with my 2001 Windstar. To take the pointer needle back to its position without removing the Cluster, you will need to:
- Remove the head lights and dimming switch together with the bezel (left side of steering column). It is snap-fit, so just pull it softly from the edges
- From there, you will be able to peek and see the prndl and the red portion of the pointer stucked
- With a long soft stick (I cut a thin long portion from a manila folder, but you can also use a plastic flat stick or any thin card board material that you can cut like from cereal box) insert it into the prndl small opening between the Cluster lens and bezel to push the needle.
- If the pointer doesn't move at all and your paper stick is bended, it might be pretty stuck (due to the countinuous pushing while placing the shift is P). For that, you can use a wood stick, like a chopstick, to un-stock it. Same thing, insert it trough the opening. Do not insert it all the way, as it will not fit. This is just to unstock the pointer with the chopstick tip.
- Once it is unstuck, get back to the paper stick and now insert it again and push the pointer up until it gets back to 0 by itself.

It is higly possible that your pointer will be bend at this point (again due to the continuous pushing of the shift at P). So you might want to consider removing the Cluster lens to bend it back straight.

Important: There are several comments that it is due to some ground connections issues on the cluster, which might be true. I haven't try finding it. Your pointers will eventually jump crazy again some day. In my case this happens 2 times a year (for the last 3yrs). If this happens again, hit the top of the panel hard with your hand and the pointers will jump back.
Due to this, it will be up to you if you want to remove or replace the cluster. I didn't find it worthy.
Good luck!

SOURCE: removing selector from c4 transmission

You have to drop the pan and inside is a bolt and roll pin that hold the selector rod in. You have to remove it and the rod will slide right out so you can replace the seal.

SOURCE: i have a f-150 ford

If you are talking about the indicator for (PRNDL) section of your instrument cluster, then, remove the instrument cluster bezel (trim) look at the bottom of the cluster you will see a small cable that goes in at the bottom next to the (PRNDL) display, the cable has a threaded nut on the end of it, adjust this nut to correct its position while in Park. You may need to remove the cluster to adjust, if so remove the screws around the outside of the cluster, and lift out. The other end of this cable is a loop that is placed over a lever connected to the shift lever this end is non adjustable. Hope this helps, let me know.