Hallo, bought the car few days ago and today I realized the front and rear parking sensors are not working. The thing is.. I cant get "P" button to illuminate blue and also when I test the sensors (car off in acc mode, reverse and then I went behind car and sensor picket up nothing) and also there is NO error codes on dash or diagnostic. Before I take it for small service and to inspect that (as its in warranty), could there really be issues with parking sensors or am I just dumb ?