I didn't know.
The factory brake controller in my F150 has 2, yes two settings. One for Electric over hydraulic trailer brakes, and one for electric only trailer brakes. And even though they still worked. Mine was ...
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Lots of neat features built into the Ford factory brake controller. My '15 F-150 allows me to name and save settings for different trailers. I plug in the trailer and on the dash it will ask what trailer I want and then the preselected settings are used. A bit overkill but does make it nice not having to make adjustments between trailers.
