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Service bulletin SSM 52503

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11000182
Published by NHTSA2024-05-17
Manufacturer's numberSSM 52503
Manufacturer's date2024-05-02
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

Some 2023-2024 Explorer/Aviator vehicles equipped with the 3.0L EcoBoost engine and up to 15,000 miles (24,140 km) may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P219A (Bank 1 Air-Fuel Ratio Imbalance) and/or P219B (Bank 2 Air-Fuel Ratio Imbalance) stored in the powertrain control module (PCM) with no effect on vehicle operation. To correct this condition, replace the fuel injector assemblies (service part L1MZ-9F593-B) for only the respective bank setting the DTC. Refer to Workshop Manual, Section 303-04B. For claiming, use causal part 9F593 and applicable labor standards in Section 10 of the Service Labor Time Standards (SLTS) Manual.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P219A, P219B

Vehicles listed
FORD EXPLORER2023, 2024
LINCOLN AVIATOR2023, 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20253662025-07-08. Fuel System
25V4550002025-07-07. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM550592026-08-03. Service bulletin. Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost engine, 2020-2026 Explorer vehicles equipped with a 3.3L hybrid engine, and 2020-2023 Lincoln Aviator vehicles equipped with a 3.0L EcoBoost hybrid engine may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM). The vehicle may be unable to enter electric-only drive modes as expected during normal drive cycles. This may be due to the belt integrated starter generator (BISG). For vehicles with this condition, follow the necessary Pinpoint Test in Workshop Manual (WSM), Section 303-06 for DTC P0A1E and repair the vehicle as directed. Note that previous replacement of the BISG does not negate the need for subsequent BISG replacements if directed to do so by the appropriate Pinpoint Test diagnostics. Engineering is investigating this BISG quality concern. Monitor PTS for updates regarding this investigation.
TSB 26-23492026-08-03. Service bulletin. This bulletin supersedes 25-2415. Reason for update: To add production build dates of the right-side engine valve cover. Some of the vehicles listed in the Model statement above may exhibit oil consumption and blue smoke from the tailpipe. This may be due to the sealing process of the positive crankcase ventilation (PCV) baffle which is part of the valve cover assembly.
SSM 550312026-07-28. Service bulletin. Some 2021-2026 Ford/Lincoln vehicles may exhibit various symptoms including but not limited to the auto start/stop system not operating as intended with a "Check Charging System" message in the instrument panel cluster (IPC) while the charging system is operating properly with no charging related diagnostic trouble codes (DTC) stored. This may be due to someone using an aftermarket programmer to change the body control module (BCM) configuration to disable the auto start/stop system or perform other unsupported programming modifications. To correct this condition on F-150 and Bronco vehicles, download and run the Ford Diagnosis and Repair System (FDRS) application titled "BCM-Charging System Configuration Correction". Running this application will determine if the BCM configuration was modified by the customer and if so, provide the option to return the configuration back to factory settings. For other vehicle models exhibiting concerns related to unsupported aftermarket BCM programming, submit a Technical Support Request (TSR) requesting support to revert the BCM configuration
SSM 548572026-05-26. Service bulletin. 2020-2026 Explorer/Escape/Corsair, 2021-2026 Bronco Sport/Bronco, 2022-2026 Maverick, 2024-2026 Mustang/Ranger/Nautilus vehicles equipped with a 2.0L or 2.3L EcoBoost engine may require removal of the turbocharger wastegate control actuator linkage for various reasons. The Workshop Manual (WSM), Section 303-04 Fuel Charging and Controls - Turbocharger - 2.0L/2.3L EcoBoost > Removal and Installation > Wastegate Control Actuator Linkage service procedure been added. In addition, the wastegate actuator rod (9E408), associated retention springs (9342) and retaining clips (00817) have been released as lower-level components to complete the repair without replacing the entire turbocharger wastegate actuator assembly.
SSM 546462026-05-05. Service bulletin. Some 2020-2024 Explorer/Police Interceptor Utility hybrid vehicles may exhibit a "Refuel Error See Manual" message in the instrument panel cluster (IPC) after installing a replacement fuel filler door assembly (7827936). This may be due to a concern with the replacement fuel filler door assembly. If diagnostics in the Workshop Manual (WSM), Section 501-14 Body > Handles, Locks, Latches and Entry Systems > lead to fuel filler door switch replacement, install a new fuel filler door assembly ordered from depot stock to correct this condition. Suspect parts have been cleared from parts depot inventory.
SSM 547872026-05-05. Service bulletin. Some 2020-2023 Aviator and 2025-2026 Explorer/Police Interceptor Utility hybrid vehicles may exhibit a "Refuel Error See Manual" message in the instrument panel cluster (IPC) after installing a replacement fuel filler door assembly (7827936). This may be due to a concern with the replacement fuel filler door assembly. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and Ford is currently working on a solution for this condition that is expected Q3 2026. Further replacement of the fuel filler door assembly will not resolve this condition at this time. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available.<br /><br /> If a customer vehicle exhibits this concern, submit a Vehicle Concern Report. To submit a report, click on the "Submit Global Concern Report (GCR)" link at the upper right of the PTS Vehicle ID screen (vehicle identification number ÝVIN¨ required) a
23B642026-04-30. Other. Customer Satisfaction Program 23B64 Certain 2020-2024 Model Year Multiple Vehicle Lines Equipped with High Voltage Batteries Battery Energy Control Module (BECM) Software Update
TSB 26-21122026-03-23. Service bulletin. This bulletin supersedes TSB 26-2059. Reason For Update: To add missing labor operations. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: - No upshift past second gear - Unable to achieve third gear ratio - Illuminated malfunction indicator lamp (MIL) with DTCs P0757 and P2701 This may be due to a damaged one-way clutch (OWC).
SSM 546142026-03-04. Service bulletin. Some 2020-2024 Explorer vehicles equipped with a 2.3L engine and 2020-2026 Explorer/Police Interceptor Utility/Aviator vehicles equipped with a 3.0/3.3L engine may require various repairs associated with the fuel tank and/or fuel pump and sender unit. Workshop Manual (WSM), Section 310-00 > Removal and Installation for the fuel tank and fuel pump and sender unit have been revised to eliminate the need to remove the driveshaft as part of the service procedure. Labor times have also been updated to reflect this WSM revision.
SSM 545932026-02-27. Service bulletin. Some 2024-2025 F-150, Expedition/Navigator, Escape/Corsair, Bronco, Explorer, Mustang, Maverick vehicles equipped with a 1.5/2.0/2.3/3.5L EcoBoost engine and built on 01-Oct-2024 and through 31-May-2025 may exhibit an extended crank condition, strong fuel smell in the engine oil, high engine oil level and/or may have various drivability diagnostic trouble codes (DTCs) stored in the powertrain control module (PCM) with an illuminated malfunction indicator lamp (MIL). This may be due to an internal fuel leak of the high-pressure fuel pump causing fuel to enter the crankcase and reduce fuel pressure in the direct injection fuel rail. Diagnose this condition using Pinpoint Test HP located in Workshop Manual (WSM), Section 303-04. If no DTCs are stored in the PCM, proceed from Step HP1 to Step HP5 and continue testing. Repair as necessary outside of this article. For claiming, if high-pressure fuel pump replacement is required, use causal part number 9D376 and labor operation code 9543A. If the root cause is identified as anything other than the fuel injection pump, claim the repair outside of this article.