If it still is inoperative once warm then the lift cable in the unit likely snapped.
All manufacturers went to this cable drive system about ten (maybe a few more) years ago and they don't do well with frozen glass.
Regardless......yes, Chevrolet will likely warranty it without much fuss......technically not a mechanical failure (this would be a caused failure) but virtually impossible to prove so they just replace them as needed and move on.
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