Ford Mustang Mach E 2021–2023 — technical service bulletin
Bulletin 23OTASU4P1MACHE · NHTSA communication 10235741 · issued Apr 11, 2023
Technical service bulletin
communication type
Back Over Prevention
component
2021–2023
model years
3
vehicle entries
Official summary
Software Update 4 P1: For 2021- 2023 Model Year Mach E vehicles is now available. Quality improvements include: - Improved heater performance and interior humidity compensation. - Enhanced Power Steering Control Module communication. (Removes erroneous popup message) - Improvements to Lane Keeping Feature - Improvements in Cyber Security for Driver Assist Tech.
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.