Ford Bronco 2021–2025 — technical service bulletin
Bulletin SSM 54781 · NHTSA communication 11031638 · issued Apr 27, 2026
Technical service bulletin
communication type
Power Train
component
2021–2025
model years
5
vehicle entries
Official summary
Some 2021-2025 Bronco vehicles built on or before 09-Sep-2025 may require replacement of the ambient air temperature sensor for various concerns. Diagnostic trouble codes (DTC) P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM). A concern has been identified in TSB 26-2006 that previously instructed replacement of the incorrect ambient air temperature sensor for the vehicle application. Monitor Professional Technician System (PTS) for updates.
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.