The rear AC in my 2019 Enclave was not blowing cold air, I’d say cool at best. I did some trouble shooting and it seems that with the rear AC on low, and the drivers AC on low, it causes the rear to blow warm. If I increase the drivers temp to 65F, the rear will be noticeable colder. Has anyone run into this issue? How would the drivers side ac have any effect on the rear temp? Passenger is cold as ice and has no effect on either drivers or rear temps when increasing or decreasing that zone’s temperatures.