2020 Rough Shifting When Cold

2020MN

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Hi Everyone,
I'm new to the forum.
I purchased a new 2020 EX last fall, and after about 1000 miles, I started getting the rough shifting in the middle gears as it warms up. 4600 mile on it now, and no change. Does that reprogramming the transmission I've been reading about help? Other that that, the Sorento's been great.

Any ideas will be appreciated!
 
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