Lincoln Aviator 2021–2023 — technical service bulletin
Bulletin 23B49 S1 · NHTSA communication 10246073 · issued Nov 15, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
3
vehicle entries
Official summary
Certain 2021 - 2023 Model Year Aviator Vehicles Equipped With SYNC - Reprogram Accessory Protocol Interface 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.