Hey thanks for posting this. My AC leak is in the exact same spot as the pictures and description, and I have a 2017 Escalade ESV which is one of the vehicles identified in this TSB. However, my dealer says when they look up my VIN, this AC Special Coverage Adjustment does not show up as being associated with my VIN. Therefore in the dealer’s opinion, my car is excluded. They said even though my year and model are listed in the Special Coverage Adjustment, GM only applies this to specific VINs that are a subset. They told me I could call GM on my own but the dealer can’t do anything more.I've tried to attach the TSB on the Air Conditioning Condenser leak.
GM Special Coverage Adjustment - 17336 Air Conditioning Condenser Refrigerant Leak
Also, the transmission cooling line MAY be effected by the failing condenser. I had both the A/C condenser and trans cooling line replaced, under extended warranty, at approx. 105k miles on my '15 Tahoe.
You may want to have that looked at too...