I hooked up to a trailer and had to back up right away and the truck was stopping me thinking it was going to hit the trailer, how do I turn off the sensor so I can back up? Like you say if I drive forward for a bit the message comes on the dash asking if I'm hooked to a trailer and I push yes...
Mine had 2 holes in front with 2 lag screws put on by the dealer I guess so they could display their dealer plates. Seems a crude way of mounting. I put my own plates on with the plastic frame and the holes strip out very easy in plastic bumper cover or whatever you call where you mount the plate.