Ford F-150 2021 — technical service bulletin
Bulletin SSM 49962 · NHTSA communication 10199510 · issued Jul 15, 2021
Technical service bulletin
communication type
Electrical System
component
2021
model years
2
vehicle entries
Official summary
Some 2021 Mustang Mach-E and F-150 vehicles may exhibit a Reverse Brake Assist Unavailable message after module programming has been completed. This may be due to a network interruption from programming or configuring modules, which can cause steering center find to be reset. When the steering center find is reset, this causes various features to become disabled. The steering center find can be relearned by driving the vehicle approximately 5 minutes above 18 mph (30 km/h) straight ahead on a flat surface with no steering inputs for a few seconds. When steering center is found the Reverse Brak
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.