Lincoln Corsair 2021–2025 — technical service bulletin
Bulletin SSM 54386 · NHTSA communication 11025808 · issued Nov 18, 2025
Technical service bulletin
communication type
Engine
component
2021–2025
model years
5
vehicle entries
Official summary
For 2021-2025 Corsair vehicles, if diagnostics lead to the heating ventilation air conditioning (HVAC) air registers as the causal part, a new lower level part is available. It is no longer necessary to replace the air registers if only the HVAC air register arm or linkage are damaged.<br /> <br /> Drivers side (LJ7Z-78045K00-A)<br /> Left center (LJ7Z-78045K00-B)<br /> Right center (LJ7Z-78045K00-C)<br /> Passenger side (LJ7Z-78045K00-D)
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.