This article supersedes TSB 17-0065 to update the Service Procedure and vehicles affected. Some 2015-2019 Edge, 2016-2018 MKX, and 2019 Nautilus vehicles built on or before 05-Jun-2019 may exhibit a rattle or flutter noise from the underbody of the vehicle while moving. This may be due to the movement of loose underbody shield fasteners which are attached to the underbody shields. To correct the condition, follow the Service Procedure to remove the assembly aid fasteners.
