Does the backup park assist just use the four sensors, or does it use the camera as well? I have a bigger rim for a spare and now I'm trying to figure out why the chime goes off in reverse. Sensors are clean, and I can see part of the rim in the red area of the camera. I don't remember if I could see any of the rim with the stock wheel. 2021 Rubicon JLU. Still using stock 33" tires. Any thoughts?