Ford Mustang 2020 — technical service bulletin
Bulletin SSM 49544 · NHTSA communication 10187932 · issued Feb 4, 2021
Technical service bulletin
communication type
Equipment
component
2020
model years
1
vehicle entries
Official summary
Some 2020 Mustang GT500 vehicles may exhibit a battery drain concern when the customer applies the electric parking brake after turning the ignition off. This may be caused by the operation of the antilock brake (ABS) module software. To correct this condition, reprogram the ABS module using the latest version of the appropriate Ford diagnostic scan tool. For claiming, use causal part 2C219 and any applicable labor operations in Section 2 of the Service Labor Time Standards (SLTS) Manual.
Vehicles covered
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.