I am currently dealing with the same problem with our 2018 Yukon XL 28k miles. The dealership can't find and issue but also states that the compressor is running too much. i.e. 10 different times for approx 1 minute 30 seconds over a 20 minute period, while in stop and go traffic. The dealership has determined there is no leak in the system. There are no codes thrown and therefore will not fix the excessive running of the compressor. Their solution was to allow the compressor to fail and then warranty it. Have you had a solution to the compressor issue?