Ford Mustang 2021–2022 — technical service bulletin
Bulletin 22B28 · NHTSA communication 10226954 · issued Nov 22, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
2
vehicle entries
Official summary
Certain 2021-2022 Model Year Mustang Mach-E Vehicles Reprogram HVAC Control Module A software update has been released to ensure that customers are getting the best heating performance on their vehicles while driving at highway speeds. These updates will improve the heating capability and the defrost and defog performance when exterior temperatures are at or below -15C/5F
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.