Here's the scoop on the the trailer hitch and sensor...Or at least as it was on my '21 Touring.
I thought I'd install the hitch myself as I didn't care about the wiring harness, and I did my '18 Pilot without issue.
I had no idea the Touring came with the foot sensor, but was always puzzled when shopping for the hitch the parts guys would ask me which hitch did I want as I thought there was just one.
So, I get under the car and take off the rear valence and put the hitch on, only to find that there is an inner piece to the valence. I struggled for 2 hours trying to get the valence to go on. Then I noticed 2 long "antennas" that come in from either side of the valence. These rods are the kick sensors. The sensor is not just some circle thing. They are long "antennas" which allow them to capture the sweeping motion of your foot. When it's installed at the dealer, and you have the foot sensor, that hitch is a different part that comes with a different inner valence that has shorter antennas as to not get in the way of the hitch. The dealer also has to cut a hole in the new valence where the hitch comes through. Had I known this...A. I would have paid the ransom money and had the dealer install it, and B. ordered the right hitch package.
I ended having to leave the inner valence with the "antenna" off for the hitch to fit and the outer valence to line up correctly to the mounting holes. So, I lost the foot activation which I didn't know I had but was bummed to find out I lost it. I could probably order the correct inner valance and try again, but I'm not sure I wanna cut and all that.