Some 2024 Mustang vehicles may exhibit an illuminated MIL with DTC P059F stored in the powertrain control module (PCM). This may be due to a loose and/or detached vane on the active grille shutter from the factory. To correct this concern, replace the active grille shutter. Refer to Workshop Manual (WSM) Section 501-02 Front End Body Panels > Removal and Installation > Active Grille Shutter. For claiming, use causal part 8475 and applicable labor times in Section 12 of the Service Labor Time Standards (SLTS) Manual.