[mjw930]

I know there are many threads on this topic but many times details get buried in the comments which makes searching for the information problematic at best.

Here is an excerpt from a TSB that explains everything. Although it's for Cadillac the way it works is exactly as I discovered and I'm pretty sure the base electronics come out of the same parts bin.

Memory Seat Operation after RKE Update


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[rdslon01]

Thanks for the post and link, Mark. There were some pieces of information in there which I did not know, in particular about what happens when new fobs are programmed to a car, and how they get assigned to memory setting #1 or #2.