I am curious how the dealer verified the parking sensor setup. Seems like something we should all know how to do. Maybe walk around the car with a box while some sits in the car in drive with a foot on the brake?
My 2021 XC40 Momentum T5 experience has been fantastic.
I just drive around, close to cars when I park, close to curbs when I parallel-park and the car alerts me at all times with beeps, boops, images in the center console of which sensor is alerting, bars in the backup camera that change location and color all while keeping me completely informed about my location.
Frankly, I wish it were a little LESS fussy about my parking. I'm capable of larking 2 inches from another car without hitting it, but the car get ANGRY! when I get closer than about 18 inches to another car.
I can deal with it.
I like the help it provides, but I still do not DEPEND on it solely to keep me from hitting objects in my path. I still use the windows, mirrors, and sometimes even stick my head out the window to see what's up.
OH, I also asked it to tip the passenger mirror down while I'm in reverse so I can see the curbs.