Lincoln Aviator 2018–2026 — technical service bulletin
Bulletin SSM 55226 · NHTSA communication 11038439 · issued Oct 7, 2026
Technical service bulletin
communication type
Seats
component
2018–2026
model years
23
vehicle entries
Official summary
For 2020-2026 Aviator/Corsair and 2018-2026 Navigator vehicles, if diagnostics in Workshop Manual (WSM) Section 501-10A > Front Seats > Diagnosis and Testing lead to the replacement of the front seat cushion extension adjuster, a lower-level part is now available (14C720). It is not necessary to replace the front seat cushion extension adjuster if only the front seat cushion extension motor assembly is damaged. For Corsair, use service part LJ7Z-14C720-A. For Aviator, use service part R2TZ-14C720-A. For 2025-2026 Navigator (both sides) and 2018-2024 Navigator driver side, use service part NL7Z
Vehicles covered
- 2020 Lincoln Aviator
- 2021 Lincoln Aviator
- 2022 Lincoln Aviator
- 2023 Lincoln Aviator
- 2024 Lincoln Aviator
- 2025 Lincoln Aviator
- 2026 Lincoln Aviator
- 2020 Lincoln Corsair
- 2021 Lincoln Corsair
- 2022 Lincoln Corsair
- 2023 Lincoln Corsair
- 2024 Lincoln Corsair
- 2025 Lincoln Corsair
- 2026 Lincoln Corsair
- 2018 Lincoln Navigator
- 2019 Lincoln Navigator
- 2020 Lincoln Navigator
- 2021 Lincoln Navigator
- 2022 Lincoln Navigator
- 2023 Lincoln Navigator
- 2024 Lincoln Navigator
- 2025 Lincoln Navigator
- 2026 Lincoln Navigator
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.