Service bulletin SSM 49405

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)
Type	Service bulletin
NHTSA id	10184637
Published by NHTSA	2021-01-05
Manufacturer's number	SSM 49405
Manufacturer's date	2020-12-16
NHTSA component	ELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

Some 2020-2021 Aviator and 2021 Corsair hybrid vehicles may exhibit various concerns with the Lincoln Dual TurboCord. For diagnostic assistance, contact Webasto Charging Systems, Inc. directly at 888-219-6747 or at evscs@webasto.com.

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

Electrical system, Equipment and accessories

Vehicles listed
LINCOLN AVIATOR	2020, 2021
LINCOLN CORSAIR	2021

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

Recalls for the same vehicles and component
2026005	2026-01-09. Electrical
25V789000	2025-11-14. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
2025554	2025-10-10. Electrical
25V685000	2025-10-10. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
25V349000	2025-05-23. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V954000	2024-12-20. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM)
24V852000	2024-11-08. EQUIPMENT:OTHER:LABELS
23V626000	2023-09-08. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
22V331000	2022-05-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
21V534000	2021-07-15. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR; ELECTRICAL SYSTEM:WIRING

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
TSB 26-2325	2026-10-05. Service bulletin. Some of the vehicles listed in the Model statement above may exhibit a front courtesy lamp that is inoperative. This may be due to a concern with the front courtesy lamp light module.
TSB 26-2395	2026-09-01. Service bulletin. This article supersedes 26-2287. Reason for update: update the labor operation numbers to add MT to operations C, F, G, H, J, K, L and M, and correct the part number LIMZ-4A015-B to L1MZ-4A015-B. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Harsh engagement Delayed engagement Harsh shift Delayed shift Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC)s P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771, P0772, P2700, P2701, P2702, P2703, P2704, P2705, P2707, P2708, P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6 and/or P07F7 stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to axial movement of the CDF clutch cylinder sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect and replace other transmission components and flush transmission fluid cooler only as ne
26N15	2026-09-01. Other. Customer Satisfaction Program 26N15 Certain 2020-2026 Model Year Escape and 2021-2026 Model Year Corsair Plug-in Hybrid Electric Vehicles (PHEV) – High Voltage Battery Replacement
SSM55059	2026-08-03. 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.
26E04	2026-08-03. Emissions. NEW VEHICLE DELIVERY HOLD - Emissions Recall 26E04 Certain 2021-2025 Model Year F-150, Maverick, Mustang, Ranger, Expedition, Bronco Sport, Explorer, Bronco, Navigator, and Aviator Vehicles Powertrain Control Module Software Update
23B64	2026-04-30. 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
SSM 54720	2026-04-10. Service bulletin. Various 2020-2026 Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by diagnostic trouble codes (DTCs) B118C:11 and/or B118C:15 stored in the driver door module (DDM), and/or B118D:11 and/or B118D:15 stored in the passenger door module (PDM). This may be due to the wiring connector from the mirror to the BLIS module. If diagnostics lead to an internal mirror wiring harness fault, a new lower level BLIS light pigtail is now released for service. It is not necessary to replace the exterior mirror assembly. Use part number SC3Z-14A411-B to resolve the concern.
24L10 S1	2026-04-07. Other. Certain 2021-2025 Model Year Corsair Vehicles- Flat Tow Rating Change On the affected vehicles, documentation in the owner’s manual incorrectly states that 2021 – 2025 Corsair PHEV (Plug-in Hybrid Electric Vehicles) can be recreationally flat towed. You cannot recreationally flat tow these vehicles with all wheels on the ground because damage to the powertrain may occur. All 2023-2025 model year vehicles will require dealers to perform a software update to the Accessory Protocol Interface Module (APIM) to install an updated digital owner’s manual. This action may require updates to other modules on the vehicle to receive the correct software.
SSM 54702	2026-04-06. Service bulletin. Some 2020-2023 Aviator and 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. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time.
SSM 54589	2026-03-04. Other. Some 2019-2024 Ford and Lincoln vehicles equipped with SYNC3 may experience various connectivity concerns with The Ford App Lincoln App including but not limited to: missing activation prompt pop-upon the vehicle's center display screen when attempting to activate vehicle through The Ford App Lincoln App, incorrect location global positioning system GPS reported through The Ford App Lincoln App, problems with remote commands being performed through The Ford App Lincoln App and or incorrect data information reported on The Ford App Lincoln App. These symptoms will be accompanied by diagnostic trouble code DTC B156D 89 in the TCU. This may be due to the accessory protocol interface module APIM software. To correct the condition, update the APIM software.