I thought I'd pass on this info in case anyone else is having an issue with their sunroof. I recently had the rails replaced under warranty, since the sunroof would make clunking / grinding noises, get stuff halfway, "pop" when opening, etc. When I got it back, the sunroof operation was as smooth as butter. Unfortunately, when I went to close it, it would move forward 2 inches, stop, then go back. It would keep doing this until I reached up and gave the sunroof a little "boost", and then it shut just fine. (Surprising they didn't notice this at the dealer)

I didn't feel like taking it back, so I did a little research and stumbled upon the initialization procedure. Apparently, this procedure should be done anytime sunroof work is being done that may change the amount of friction the the motor "feels", so you can recalibrate the allowable force that the system will use to close. (IE: It knows when it is closed, and not just hitting friction on the track)

1. Start the vehicle or turn on accessory power
2. Begin with the sunroof and shade closed
3. Turn on the left dome light
4. Turn on the right dome light
5. Turn off the right dome light
6. Turn on the right dome light
7. Turn off the right dome light
8. Turn off the left dome light
9. Press the close button and release
10. Press and hold the close button
11. Continue to hold the close button for approximately 10-15 seconds and the shade and sunroof will open (Continue holding throughout)
12. Once the shade and sunroof are completely open, release the button
13. Press and hold the close button again like step 11, and the shade and sunroof will close
14. Release the close button

Once I did this procedure, I didn't have a problem with it getting "stuck" anymore. It closes and opens perfectly. I'm sure there is a Youtube video on this somewhere, but the steps were easy enough to write out. I hope this helps someone.

 

Good info, thanks.