Jandl

We have the same problem on our 2023 sierra. Not only is there very little heat in the back the floor heat in the front is horrible. We have had it in to the dealership and they have looked at all of the flap adjustments and basically shrug their shoulders and say “ that’s just the way it is “. Very disappointed. We often have -35 weather with a - 40 wind chill where we live as well so it’s not efficient