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  1. #1

    Default tow/ haul function

    After driving a few hours in tow/ haul and then restarting( after turning off engine) the tow function will not work. If I let the truck sit for a few hours and then the tow will work, any comments, besides not stopping, Henry.
    07 2500HD Duramax , 4DR and 26 Prowler 5th wheel Travel trailer, 57 Chev wagon with 14' Bonair travel trailer, and 71 Nova. Canadian Regional Coordinator

  2. #2


    That's pretty much going to be a GM dealer service thing. They would need to check with their scan tool if the computer modules associated with this are malfunctioning.
    92 GMC Sierra 2500

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