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Service bulletins for the 2023 Lincoln Navigator

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SSM 543922025-12-01. Service bulletin. ENGINE; POWER TRAIN. Some 2021-2025 F-150/Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit diagnostic trouble code (DTC) P0299 stored in the powertrain control module (PCM) and may also exhibit a rattle noise from the turbocharger. This may be due to the wastegate actuator rod being disconnected. Workshop Manual (WSM), Section 303-04 Fuel Charging and Controls > Turbocharger has been added to address this condition to allow servicing of the turbocharger actuator rod. In addition, the wastegate actuator rod and associated retention springs and clips have been released as lower level components to complete the repair without replacing the entire turbocharger actuator assembly.
SSM 543632025-11-13. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; ENGINE. Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L/3.5L (non hybrid)/6.8L/7.3L engine and 2021-2026 E-Series may exhibit a rattle/scraping noise from the bellhousing area on start-up. Workshop Manual (WSM), Section 303-00 Engine System - General Information > Diagnosis and Testing and 303-06 > Starting System has been updated to address this condition. Additionally, WSM, Section 303-01 > Removal and Installation > Engine to Transmission Spacer Plate has been added to address this condition. Refer to the revised WSM sections for normal diagnosis.
SSM 542692025-10-08. Service bulletin. ENGINE. Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L,3.5L EcoBoost (non-hybrid), 3.5L Cyclone, 6.8L or 7.3L engine, may exhibit a rattle/scraping noise from the bellhousing area on start-up. Workshop Manual (WSM), Section 303-00 Engine System - General Information > Diagnosis and Testing and 303-06 > Starting System has been updated. Additionally, WSM, Section 303-01 > Removal and Installation > Engine to Transmission Spacer Plate has been added to address this condition. Refer to the revised WSM sections for normal diagnosis.
PCM-25.6.2 Navigator2025-10-03. Over-the-air update. POWER TRAIN; ENGINE. Quality improvements include: -On-Board Diagnostics calibration for an enhanced Intake air temperature sensor performance
SSM 539732025-07-02. Service bulletin. POWER TRAIN; ENGINE. Some 2021-2024 Edge/Nautilus, 2021-2025 Bronco/Bronco Sport/E-Series/Escape/Corsair/Expedition/Navigator/Explorer/Aviator/F-150/F-Super Duty/Mustang/Ranger, and 2022-2025 Maverick vehicles may require an A/C compressor clutch assembly replacement be performed for various concerns. Workshop Manual (WSM), Section 412-00 Removal and Installation has been updated to eliminate the need to remove and install the A/C compressor to change out the A/C Compressor clutch assembly.
SSM 522952024-03-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Some 2021-2023 F-150 and 2023-2024 Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit a rattle/scraping noise from the bellhousing area on start-up. This may be due to the torque converter studs contacting the engine-to-transmission spacer plate (separator plate). To correct this condition, remove the transmission and flexplate and inspect the engine-to-transmission spacer plate and torque converter studs for wear/damage. If wear/damage is found, replace engine-to-transmission spacer plate. Refer to Workshop Manual (WSM) Section 303-01 Engine - 3.5L EcoBoost (BM), Removal and Installation, Crankshaft Rear Seal. When reinstalling the starter motor, be sure the starter is flush with the engine-to-transmission spacer plate prior to tightening the studbolts. Failure to do so may result in damaging newly installed engine-to-transmission spacer plate.
23B62 S12024-02-01. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2023 Model Year F-150, Expedition, and Navigator with 3.5L Engine - Engine Long Block Replacement Owner letters submitted 01/02/24
TSB 23-23642024-01-04. Service bulletin. UNKNOWN OR OTHER; ENGINE. Some 2022-2023 F-150 vehicles equipped with a 3.5L EcoBoost engine built on or after 01-Oct-2022, 2023 F-150 vehicles equipped with a 3.5L PowerBoost engine on or after 01-Oct-2022, and 2023 Expedition/Navigator vehicles built on 01-Dec-2022 and through 30-Apr-2023 may exhibit reduced engine power on startup and an illuminated MIL and/or powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P2101 stored in the powertrain control module (PCM). This may be due to the software level of the PCM. To correct this condition, perform the Service Procedure below to reprogram the PCM to the latest software level via the Ford Diagnosis and Repair System (FDRS).
23B652024-01-02. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2023 Model Year F-150, Expedition, and Navigator Vehicles equipped with a 3.5L Engine - Right Hand Turbocharger Replacement
23B622023-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2023 Model Year F-150, Expedition, and Navigator with 3.5L Engine - Engine Long Block Replacement
SSM 517642023-07-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. Some 2020-2023 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost may exhibit an illuminated malfunction indicator lamp (MIL) and low oil pressure warning in the instrument panel cluster (IPC), with diagnostic trouble codes (DTC) P0521 and/or P0524 in the powertrain control module (PCM). This condition may be caused by an internal oil pressure leak. If pinpoint test E in the Workshop Manual (WSM) Section 303-01B directs you to the replacement of the oil pump, upon reassembly inspect that the main oil gallery tube (6718) is assembled and aligned properly on the back of the engine front cover. The engine oil gallery seal (00815) must be replaced any time the front cover is removed (per WSM Section 303-01B). The WSM front cover removal and installation procedure is in the process of being updated.
SSM 517372023-06-30. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Some 2022-2023 Navigator vehicles may exhibit the power running boards defaulting to OFF after a key cycle. This condition does not affect vehicle durability and no additional diagnosis or service is recommended for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition. The customer can temorarily reset to Auto by entering the Power Running board Setting in the center display screen - Settings > Power Running Board > Runing Board Mode > Auto. Replacement or reprogramming of the SYNC module (APIM) is not recommended for this condition. Monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available.

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