Ford Mustang Mach E 2021–2022 — technical service bulletin
Bulletin SSM 53065 · NHTSA communication 11009434 · issued Oct 22, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2021–2022
model years
3
vehicle entries
Official summary
Some 2021-2022 Mustang Mach-E vehicles built on or before 17-Jan-2022 and 2022 Transit vehicles built on or before 17-May-2022 may exhibit a powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P0929:77 stored in the gear shift module (GSM).
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.