Some 2018 Mustang vehicles equipped with a 5.0L engine and F-150 vehicles equipped with a 3.3L engine may exhibit an illuminated MIL with DTC P0111 stored in powertrain control module (PCM) memory. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for normal diagnostics. If unable to determine root cause, do not attempt any repairs at this time. Engineering is investigating, monitor OASIS for updates.