Trailer Brake System
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Joined: Nov 2007
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Trailer Brake System
I have a 2007 2500HD LMM with the trailer brake system with 1400 miles on the truck. I have not towed anything yet but recently the truck has been displaying the "service trailer brake system" message. Does anyone know what this means? I talked to the dealer and they had no idea. I would like to figure this out before I start pulling a trailer with it.
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