Some 2020 F-Super Duty vehicles equipped with a 6.7L diesel engine and built on or before 18-Aug-2020 may...

Bulletin number

SSM 49140

Component

Electrical system

Summary

Some 2020 F-Super Duty vehicles equipped with a 6.7L diesel engine and built on or before 18-Aug-2020 may exhibit an illuminated powertrain malfunction indicator (wrench) lamp with only diagnostic trouble code (DTC) P07F6 stored in the transmission control module (TCM). This DTC may be accompanied by harsh engagements, a poor shift quality feel and/or loss of 9th gear as a result of the DTC being set. If no additional codes or symptoms are present, clear the DTC with the appropriate Ford diagnostic scan tool and schedule a follow-up appointment for service mid-September. Inform the customer that engineering is working to implement a solution and advise the customer that they can continue to drive the vehicle. Once available, contact the customer and confirm a service appointment. Monitor OASIS for updates.

Owners of these vehicles have filed 38 complaints in the electrical category.