Your GM does not have a relay to isolate the trailer from the truck. Fords for example has a relay to disconnect the charge line from trailer connector. I would suggest adding a relay so it would disconnect rather then having to pull the trailer connector. A relay wired as shown in the instructions would serve you well. Relay
I have never done an overnight, but I always disconnect from TV if hooked up at my house getting ready due to power draw from TV battery. Don't want that to go dead.
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Looking for advice before your next adventure? Look no further.25,108 PostsLatest Activity: Jan 30, 2025