Ford F-150 2021–2022 — technical service bulletin
Bulletin SSM 51590 · NHTSA communication 10236024 · issued May 2, 2023
Technical service bulletin
communication type
Parking Brake
component
2021–2022
model years
2
vehicle entries
Official summary
Some 2021-2022 F-150 vehicles equipped with light duty electric park brake calipers (minor feature code FAJAK) may exhibit a squeal noise from the rear brakes after sitting for 8 hours or more. To confirm a vehicle is built with minor feature code FAJAK, review the build information by double-clicking the vehicle identification number in the upper left-hand corner in the Professional Technician System (PTS). To correct this condition, replace rear brake disc (ML1Z-2C026-C) and rear brake pads, caliper pin bolts, and brake pad holding clips (ML3Z-2200-E) on both sides of the vehicle. Refer to W
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.