I have a 2013 Chev 2500hd Duramax with a western wideout plow, for the last year it has flashed and dinged service traction control every time I hit the buttons while plowing, very frustrating..... I have had it at the dealer and $700 later all they can say is its a voltage spike. they don't know where its coming from or how to fix. Can anyone help here? I have also taken it to the plow dealer and we put a new plow on to test and no difference.