I thought the same, that maybe GM would wise up and fix it but apparently even some 2017s are having the same problem. Lucky for them is most are still under the 36K mile warranty. As for me, my 2014 has been a great truck for about 83500 miles and now this. The simple fact that we don’t use the A/C that often made me think more of the system needing a reset rather than anything mechanical like freon or actuators needing replacement.