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Service bulletins for the 2021 Lincoln Aviator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

271 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
TSB 25-2568 V22026-10-01. Service bulletin. SUSPENSION; VEHICLE SPEED CONTROL; UNKNOWN OR OTHER. This article supersedes TSB 25-2373 to update a print error on publication. Some vehicles listed in the model statement above may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) C00A6 and/or C0631. This may be due to the front axle disconnect actuator/intermediate shaft.
TSB 25-25682026-01-13. Service bulletin. VEHICLE SPEED CONTROL; SUSPENSION; UNKNOWN OR OTHER. This article supersedes TSB 25-2373 to update a print error on publication. Some vehicles listed in the model statement above may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) C00A6 and/or C0631. This may be due to the front axle disconnect actuator/intermediate shaft.
SSM 518212023-08-10. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; POWER TRAIN. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles equipped with AWD may exhibit a binding or shudder sensation while turning and/or while accelerating from low speeds. The concern may also be described as a grinding and/or chatter noise. If the Workshop Manual (WSM) leads to replacement of the rear axle, inspect the differential for damage and differential fluid for metallic chunks in the fluid. Note that some metallic flake in the fluid and/or discoloration is normal and the rear axle should not be replaced for it. If no damage is found to the rear differential, it is not recommended to replace the rear axle assembly. Instead, refer to the Symptom Charts in WSM, Section 307-07A for further diagnosis of the transfer case.
SSM 516402023-05-16. Service bulletin. SUSPENSION. Some 2020-2023 Aviator vehicles equipped with air suspension may require service of a front air spring/strut. Complete front air spring/strut assemblies are now available and can be replaced instead of replacing individual components of the front air spring or front struts for warranty and retail repairs. Part numbers are LC5Z-3C098-A (right) and LC5Z-3C098-C (left) for non-hybrid vehicles, and LC5Z-3C098-B (right) and LC5Z-3C098-D (left) for hybrid vehicles. Front spring/strut assembly replacement is recommended to make sure a successful repair is performed.
SSM 516212023-05-16. Service bulletin. SUSPENSION. Some 2020-2023 Aviator vehicles equipped with air suspension may exhibit a drive malfunction and/or suspension fault message in the instrument panel cluster (IPC) with diagnostic trouble codes (DTCs) B1041 and U2100 stored in the SUMA. This may be due to the SUMA entering diagnostic service mode after an on-demand (OD) self-test following suspension system diagnosis or repair. Use the Ford Diagnosis and Repair System (FDRS) > SUMA > Run All CM (Continuous Memory) DTCs. Do not run FDRS > SUMA > OD and CM DTCs to prevent invalid DTCs. If an OD self-test was run, clear DTCs using FDRS > SUMA > Transport and Factory Mode Deactivation function. For other DTCs refer to Workshop Manual (WSM), Section 204-05 (Vehicle Dynamic Suspension) for normal diagnostics.
SSM 509302022-07-20. Service bulletin. SUSPENSION. Some 2020-2021 Aviator vehicles equipped with air suspension may exhibit a Drive Malfunction and/or Suspension Fault message in the instrument panel cluster (IPC) with diagnostic trouble codes (DTCs) B1041 and U2100 stored in the SUMA. This may be due to the SUMA entering into a diagnostic service mode after an on-demand self-test or module replacement. If no other DTCs are present, use the latest software version of the Ford Diagnosis and Repair System (FDRS) scan tool to update and configure the SUMA. If other DTCs are present, refer to Workshop Manual (WSM), Section 204-05 for normal diagnostics. For claiming use causal part 5319 and applicable labor times found in Section 10 of the Service Labor Time Standards (SLTS) Manual.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.