I have a 2017 T6 Inscription. Air suspension quit working yesterday. At start-up and while backing, heard loud tapping rattle at a consistent interval from rear then received "suspension requires serving"'aleart and notification that issue was logged. Air suspension does not activate at driving mode change or with rear button. Everything else on car works; albeit car rides rougher. Headed to dealer tomorrow. Just wondering if others have experienced and what might have happened. I have an excellent dealer, so I'm hopeful for quick repair. I have a little over 10k miles on car.