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November 6, 2023 Service bulletin

Some 2021-2023 Mustang Mach-E, 2022-2023 F-150 Lightning/e-Transit vehicles may exhibit a concern where...

Ford technical service bulletin SSM 52039 for 2021-2023 Ford Mustang Mach E, 2022-2023 Ford F-150 Hybrid and 2022-2023 Ford F-150 Lightning Bev and others.

Bulletin number
SSM 52039
Component
Electrical system
Summary
Some 2021-2023 Mustang Mach-E, 2022-2023 F-150 Lightning/e-Transit vehicles may exhibit a concern where the vehicle is unable to achieve 100 percent state of charge immediately after high voltage (HV) battery module balancing and replacement. This may be due to the battery energy control module (BECM) adjusting the cell balance (conditioning) of the battery module and should be corrected within 22 days. If the vehicle otherwise functions as designed with no related diagnostic trouble codes (DTC) setting, this concern will be corrected automatically with no further actions required by the technician.

Owners of these vehicles have filed 483 complaints in the electrical category.

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