Originally Posted by Gilly

Ultimately there is, not sure which one or where, I think all the seat functions would quit, not just the headrests, if you blew the fuse.
Has anyone removed the headrests lately, >>No<< like to install a seat cover? You yank the headrests out, then have to make sure they engage back into the little transmissions that move them up and down. The motors are either in the backrest or just below the seats. Do you hear them running? >>No<<
Are they stuck in the up or down position? >>Down<<
What usually works, if the motors run, is to run then to the raised position, then push the headrest down rather quickly and they will snap back into place.

Gilly