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I have 2018 1 ton gmc diesel, trailer brakes keep blowing fuse, and get warning that trailer lights need service, just back from dealer second time in a few week, they just replace fuse and act stupid, Its very dangerous pulling heavy trailer over mountain passes with no trailer brakes, I have 2 trailers and same issue. I plug into my other gmc, no problem, have read, that a new trailer plug system might help, So new truck under warranty?? even plug into truck camper and running lights blow..