I purchased a 2020 GMC AT4 3500 in September of 2019, since day 1 my brakes have squealed, squeaked, whatever you want to call it. I paid over $75,000 for this garbage track and the brakes make obnoxious noises and frankly it is emabarrassing!! I took it to a local GMC dealer who said....take a guess.....There is nothing mechanically wrong with the brakes and they could not replicate the noises, BS. I brushed it off and around February I ordered new brake pads and decided to do it myself, well the pads were the wrong ones and I have not been able to find an aftermarket set to this date. Since a year has now gone by I decided to go to another dealer because I found a service bulletin on this website (THANK YOU!) # 20-NA-020 that looked like my ticket to getting rid of this simple problem. Well I took it in and guess what the lazy "salesman" service guy said....yes, the same f'ing thing, there is nothing mechanically wrong with your brakes, however they are overheating and we can replace them for $700!!!! They squeak when it is cold most of the time! I have owned Chevy's, GM's for over 30 years and this will be the last time, I hope this stirs the pot and others realize how stupid these service centers are, yes I am sure Ford and others are the same but seriously there is a service bulletin for this that clearly states what the remedy is and they know that! This is ridiculous like the other posters have said about these brakes. $75,000 and my daughters $20,000 Honda Civic is less embarrassing to drive.
