I've got a 2020 GMC AT4. I'm sure it did it since shipped, but it's in the garage and not driven that much. I just brought mine in for the rear window leak. I would have thought for sure this would have been a sorted issue since I have two friends with 19's that had the issue. I'm won't lie I really felt like GM let us down if they are still sending them out of the factory with the issue. The first service contact I spoke to seemed surprised. But when he sent me over the the collision shop to schedule the service, then I was told it's a very well known problem.
20 years away from GM because of reasons like this in the past. I'm quickly regretting giving them another chance.
