Software flash for 4WD for 2015i Denali?

[DCYukon]

Went in for an oil change and made the gripe that ride was sluggish from start especially when slowing down to a light and being in V4 when stopping. Service rep said that it was likely an issue that is a recall now of cold weather triggering the 4WD to kick in when it shouldn't. They are installing the software flash for the 4WD system now. To be continued.

 

[Shadow17]

I had mine in last week for a radio issue and they also did the reflash as a 'recall'.
That was the same explanation given to me...4wd activating or being stuck on during cold weather.

The only problem I notice with my transmission is when I shift it out of park when the tranny is cold it jerks into gear pretty hard. They couldn't diagnose the problem since the engine/tranny was warm from driving there. The truck needs to set for several hours in cold weather for it to do so.
And I am still too much in love with my Denali to drop it off over night.