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  1. #1

    Default A/C swich lights after starting

    On my 07 2500 HD duramax with the electronic dual heat/ A/C sometimes the A/C switch comes on without me selecting it after the truck starts. Anyone have this happen and found a resolve. When it comes on it changes which air ducts are selected and I have to re-select the defrost etc settings. Thanks.
    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


    I would like to look into this for you with the last eight of your VIN. Please feel free to contact me privately. Thank you.

    Tricia, GM Customer Service.

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