So just an update!!! I took it to my dealer and they said that there is nothing that they could do for the issue. On the 2016 there is a higher frequency running threw the shift dial and it is a known problem. Said it can be resolved with som me dyno mat to trying to insulate the sound but they could not do this in house saying it will void warranty. They have had several complaints about it be Gm has yet to release anything official or come up with a correction at this time.
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