Ford Mustang Mach E 2021–2023 — technical service bulletin
Bulletin TSB 23-2088 · NHTSA communication 10233596 · issued Mar 20, 2023
Technical service bulletin
communication type
Visibility
component
2021–2023
model years
3
vehicle entries
Official summary
Some 2021-2023 Mustang Mach-E vehicles may exhibit a lack/loss of heat and/or windshield interior fogging while driving during freezing temperatures. This may be due to the heating ventilation and air conditioning (HVAC) control module software. To correct the condition, follow the Service Procedure to update the HVAC control module software.
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.