Ford F-150 2021–2023 — technical service bulletin
Bulletin TSB 24-2126 · NHTSA communication 10254176 · issued Apr 29, 2024
Technical service bulletin
communication type
Equipment
component
2021–2023
model years
3
vehicle entries
Official summary
This article supersedes TSB 24-2093 to address the revised software and include affected 3.5L FHEV vehicles. Some 2021-2023 F-150 vehicles equipped with a gasoline, hybrid or flex fuel engine (non-Lightning) except 2023 F-150 with 3.3L may exhibit inoperative A/C, lack of air flow, blows warm, and/or evidence of the evaporator freezing. This may be due to the software level of the PCM and heating, ventilation and air conditioning (HVAC) module.
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.