I bought my 22 Silverado Trail Boss Duramax 3.0 on Oct 2nd. On October 3rd I got my first disabled message for the trailer brakes. Took back to the dealer. Dealer gave me the service bulletin. I took my truck in for the day time running lights recall and asked about the trailer brakes. No update yet. I opened a case with GM they said my dealer misdiagnosed my truck and to take it to another dealer. I did that this week. Same results. I called GM back and they called yesterday stating no fix and nothing they can do for me. There is a law firm starting a class action lawsuit against GM. I really just want my truck fixed so I can pull my trailer with my snowmobiles. GM did try to blame trailer but I told them I have tried 7 different trailers all with the same results.
