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  1. Service Transmission P07E4

    Cadillac XT5 First Generation Forum (2017+)
    Hi all Had a service transmission message and took it to the dealer. It got error code P07E4. They reprogrammed the “Serial data gateway module”. I did find a service bulletin on this I attached. Now 2 days later I see service transmission again one time on start up and not since. Anyone have...