Here is but 1 link to what appears to be a common problem:
https://www.camaro5.com/forums/showt...8#post10803858
My past experience tells me that since this is not happening on every car, there may be a root cause that needs to be found. Is it bad blend door motors, bad controllers, programming???????? Could it be happening to cars that have had battery failures and the blend door not syncing properly?
I'm writing this to see if there is a way to penetrate the GM Tech area for a review and determination of a possible fix so as to prevent the exorbitant cost of repairs??
If anyone from GM is watching, can you please respond. Thanks in advance.