# Service bulletin SSM 54248

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.

- Type: Service bulletin
- NHTSA id: 11023564
- Published by NHTSA: 2025\-10\-02
- Manufacturer's number: SSM 54248
- Manufacturer's date: 2025\-09\-25
- NHTSA component: POWER TRAIN; UNKNOWN OR OTHER; ENGINE; ELECTRICAL SYSTEM

## NHTSA's summary

Some 2023\-2026 Corsair vehicles may exhibit a concern when changing the fan speed, the fan speed display icon \(OFF/AUTO/fan speed number\) changes to a different language character or symbol. This may be due to the accessory protocol interface module \(APIM\) software. Replacement or reprogramming of the APIM will not resolve this condition. Inform customers that engineering is currently working on a solution for this condition and will be released via software updates delivered over\-the\-air \(OTA\) expected Q4 2025. Software will update automatically if vehicle connectivity is enabled in the vehicles settings. Schedule a service visit for customers who have disabled vehicle connectivity or who report that they did not receive the update by October 2025. Monitor Professional Technician System \(PTS\) for additional information.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023564-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023564-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Transmission and driveline

## Vehicles listed

- 2023 to 2025 LINCOLN CORSAIR

## Recalls for the same vehicles and component

- [2026094](/recalls/tc/2026094.md), 2026-03-03: Engine
- [26V122000](/recalls/nhtsa/26V122000.md), 2026-03-03: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)
- [26V091000](/recalls/nhtsa/26V091000.md), 2026-02-17: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [25V789000](/recalls/nhtsa/25V789000.md), 2025-11-14: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [2025281](/recalls/tc/2025281.md), 2025-05-23: Engine
- [25V345000](/recalls/nhtsa/25V345000.md), 2025-05-23: ENGINE
- [25V343000](/recalls/nhtsa/25V343000.md), 2025-05-23: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER; ELECTRICAL SYSTEM
- [25V049000](/recalls/nhtsa/25V049000.md), 2025-01-31: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [24V954000](/recalls/nhtsa/24V954000.md), 2024-12-20: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE \(BMS/BECM\)
- [2023309](/recalls/tc/2023309.md), 2023-05-29: Engine

## Other bulletins for the same vehicles and component

- [SSM 55221](/bulletins/11038438.md), 2026-10-12, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN; ELECTRICAL SYSTEM. For 20222026 vehicles equipped with a 8F35 transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, Section 307\-01 \> Diagnosis and Testing. This updated procedure improves the diagnosis of customer reported transmission concerns and aids in locating the proper root cause. During diagnosis and testing, details regarding whether the condition is more prevalent when the vehicle is hot or cold, throttle percentage at the time of occurrence, vehicle speed, the specific shift involved, and whether the issue occurs during transmission engagements \(N\>R, N\>D, R\>D, and/or D\>R\) should be noted in the warranty claim. Engineering requests including these detailed operating conditions that will significantly assist with root cause analysis. Diagnosis, testing, and repair should use established labor times outside this article.
- [TSB 26\-2325](/bulletins/11037978.md), 2026-10-05, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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\-2428](/bulletins/11037776.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER; POWER TRAIN. This bulletin supersedes 25\-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P2450 stored in the powertrain control module \(PCM\). This may be due to the software in the PCM and/or the fuel tank isolation valve.
- [TSB 26\-2428](/bulletins/11037775.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; POWER TRAIN; UNKNOWN OR OTHER. This bulletin supersedes 25\-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P2450 stored in the powertrain control module \(PCM\). This may be due to the software in the PCM and/or the fuel tank isolation valve.
- [TCU\-26.2.12.2.2 Mach E, F](/bulletins/11037419.md), 2026-09-21, Over\-the\-air update: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Quality improvements include: \-Addresses a bug that may cause updates to fail
- [ECG\-26.2.12.3 Bronco,Esca](/bulletins/11037290.md), 2026-09-11, Over\-the\-air update: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Quality improvements include: \-ePrivacy enhancements
- [25M03](/bulletins/11036553.md), 2026-09-01, Other: UNKNOWN OR OTHER; ENGINE. Customer Satisfaction Program 25M03 Certain 2020\-2025 Model Year Escape, 2021\-2025 Model Year Corsair and 2022\- 2025 Model Year Maverick Vehicles equipped with a 2.5L Hybrid or Plug\-In Hybrid engine \- Exhaust Gas Recirculation \(EGR\) Differential Pressure Sensor Replacement, if Required After Dealer Evaluation
- [26N15](/bulletins/11036550.md), 2026-09-01, Other: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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
- [SSM 55031](/bulletins/11035269.md), 2026-07-28, Service bulletin: UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. 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
- [TSB 26\-2328](/bulletins/11035099.md), 2026-07-20, Service bulletin: POWER TRAIN; UNKNOWN OR OTHER. This bulletin supersedes 26\-2194. Reason for update: update the Parts list to correct a part description " Loctite 638", update the claim quantity for the drain/fill plug, update the claim quantity of the wheel hub bolts \(Corsair\) and limited the parts list for Edge/Nautilus to only the rear drive unit fluid. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder chatter condition, most noticeable at low speeds turning No relevant diagnostic trouble codes \(DTCs\) present This may be due to internal rear drive unit \(RDU\) fluid contamination.

JSON: [/v1/bulletins/11023564](/v1/bulletins/11023564)

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