Not sure about the 360 cams on the 22 models. On the 23 Laramie you could order the 360 cam as a stand alone option ( XN1 Option $1095) or order the (Technology Option where you get adaptive cruise, lane guidance, auto park, 360 cams, Pedestrian sensor rear, for $1995) if one never ordered one of those 2 options on the 23 there was no 360 cams. I have not turned or tried to turn off seat belt ding....I use seat belt extenders both sides...lol. but I will check it out. To use nav in motion on 23 you must disable the lane assist or will not work! Yes it sounds like 22 is different than the 23.