For spending nearly $70k I would definitely expect a lot more from GMC. Instead you get the run around and an $800-1500 repair estimate.
Good hell, You spend $40 at Walmart and they’ll jump right over the moon to help you or at least make things right.
I sincerely hope this fix works for us. We for sure have the same issue, about 6 months into owning our brand new Yukon xl Slt. This mama was not happy about that.