2018 March MX here. Just got the car back from the SC after 10 days for aa firmware upgrade failure that was traced to the ECU on the FWDs. Now the passenger side FWD keeps "detecting" a phantom obstacle. Refuses to close unless I use the override. I don't want to head back to the SC again and lose the car for another few days while I drive around in a Fusion. I know this was an issue with the early MXes, I wanted to know if anyone from late 2017, 2018 know of a resolution. Thanks!