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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.

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By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
21B182021-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2021 Model Year Explorer/Aviator All-Wheel-Drive Vehicles Equipped with 3.0L Engines Engine Assembly Replacement All of the affected vehicles, an oversized right-hand exhaust camshaft journal was installed in the engine assembly. This may result in a misfire and low compression condition. The check engine light will be illuminated
SSM 496962021-03-31. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 Explorer/Aviator Hybrid vehicles may exhibit a buzzing noise coming from the center console or cowl area with engine speed around 1500 RPM at idle or while driving. This may be due to the transmission park manual release cable vibrating against the transmission. This can be resolved by isolating the transmission park manual release cable with Rotunda PVC foam tape (164-R4901) or equivalent, where it is contacting the transmission. Replacement of the transmission park manual release cable is not necessary.
SSM 494492021-02-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost engine may appear to have low engine oil level if the proper procedures are not followed. Refer to the Owners Guide, Maintenance, Engine oil check section. When checking the engine oil level after shutting off the engine wait at least 15 minutes prior to checking in order to allow the oil to drain back to the oil pan. The engine oil level can be checked immediately if the engine has not been started. When changing the engine oil the engine needs to be at normal operating temperature and the oil filter removed before draining the oil. Allow the oil pan to drain completely for up to 5 minutes. Check oil level after filling by following the oil level check procedure.
SSM 493882021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; POWER TRAIN; ELECTRICAL SYSTEM. 2021 F-150/Explorer/Aviator/Police Interceptor Utility vehicles without a diesel engine and/or without a 10R80 MHT transmission have a new PCM-Transmission Accelerated Main Control Break In routine added to the Diagnosis and Testing Section of the WSM. This new routine uses the Ford diagnostic scan tool to cycle the shift solenoids and clutch control valves to free them from contamination that may be sticking the valves. Refer to WSM, Section 307-01.
SSM 493802021-01-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Some 2021 F-150/Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
SSM 493292020-12-04. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE. Some 2020-2021 Aviator and Explorer vehicles may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs) P07E4, B135C and/or U0103. This may be due to a loose ground G210 and/or G214. Check grounds G210 and G214, refer to the Wiring Diagram for location information. If the concern persists, or the grounds are found to be secure, refer to the Workshop Manual and applicable sections of the Powertrain Controls/Emissions Diagnosis (PC/ED) Manual for normal diagnostics.
SSM 492692020-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2021 Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.

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