Hey good people !!!! My rear parking assistance just stopped working... the door chimes , I still get alerts if the doors are open an all . Light doesn't come on when I look through my rear view and no chime for reverse.... What should I do?
There's a specific chapter and diagnostic tree on how to run the diagnostic process on the URPA system - in the GM/Helm service manual. Maybe a How-To in Tech Tips.
Google something like "cadillac forums 2002 deville urpa system checks".