2022 Sierra rear out board heated seats.

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2022 Sierra rear out board heated seats.

For those that have NOT gotten this option due to micro chip shortage.
have you added it back in, or have the dealer quote and install the missing parts?
(provided they are able to get them in due time I presume)
can we presume the harness is still there?
also would the heating elements still be in the seats?

If successful, do you have a cost, parts list?
Was the PCM needing programming at dealer to activate?

Thanks