I created a claim with GM. Had to pay for another diagnosis and the solution is to have the moonroof drains cleaned out with every oil change. I check the rear vents and wheel wells frequently just to make sure it’s dry.
I don’t see anything in the maintenance manual that mentions frequent cleaning of the drains so it’s ( in my opinion) a defect. But I don’t have the energy to fight this, so I will spend the money to have them drained every oil change.
I had to buy an ozone generator to get rid of the odor and the dealership used freeze fresh in behind the dash($99). The smell is gone.
I don’t see anything in the maintenance manual that mentions frequent cleaning of the drains so it’s ( in my opinion) a defect. But I don’t have the energy to fight this, so I will spend the money to have them drained every oil change.
I had to buy an ozone generator to get rid of the odor and the dealership used freeze fresh in behind the dash($99). The smell is gone.