I'd agree with Driller on this one. I think it's unlikely for the seat mechs to be different, but I have some minor experience here which may prove useful.
I just dug through my own archive. I have a few photos of the driver's seat from my old 1999 Signature Series Touring Sedan. Mine did not have heated seats, and I don't remember it having memory. Perhaps these are useful for comparison. I took these when I added some aftermarket heated seats to it.
I do have a few more detailing the disassembly and removal of the seat cover itself. Feel free to let me know if that's useful, and I'll post those too.
The seat in that car did eventually fail in the same manner as yours. It's not possible to disable the Driver's "Auto Glide" feature, so it wore out in time. My solution was to move the seat to the fore/aft position that worked for me, and I cut the power wire for that specific motor. If your car ever has additional drivers, this is probably not the solution for you.
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