# Service bulletin TSB 25\-2278

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: 11019888
- Published by NHTSA: 2025\-07\-01
- Manufacturer's number: TSB 25\-2278
- Manufacturer's date: 2025\-06\-25
- NHTSA component: POWER TRAIN; UNKNOWN OR OTHER; VEHICLE SPEED CONTROL; FUEL/PROPULSION SYSTEM

## NHTSA's summary

Some of the vehicles listed in the Model statement above may exhibit the condition that the traction control feature cannot be turned off/disabled through the vehicles center display screen. Customers will see the soft button slide to the off position, then re\-enable itself a couple seconds later. This may be due to the software in the instrument panel cluster \(IPC\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019888-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019888-9999.pdf)

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

## Components

Fuel system, Throttle and cruise control, Transmission and driveline

## Vehicles listed

- 2021 FORD MUSTANG MACH E

## Recalls for the same vehicles and component

- [2026317](/recalls/tc/2026317.md), 2026-06-30: Powertrain
- [26V417000](/recalls/nhtsa/26V417000.md), 2026-06-30: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
- [22V333000](/recalls/nhtsa/22V333000.md), 2022-05-13: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; VEHICLE SPEED CONTROL

## Other bulletins for the same vehicles and component

- [SSM 55080](/bulletins/11036286.md), 2026-08-20, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM. Some 2021\-2023 Mustang Mach\-E vehicles built on or before 25\-Jun\-2023, 2022\-2025 E\-Transit and 2022\-2023 F\-150 Lightning vehicles may experience a high voltage battery stop charging condition when using a direct current \(DC\) fast charger level 3 with diagnostic trouble codes \(DTCs\) P0EEE:27 and P2E53:27 stored in the on\-board diagnostic control module A \(SOBDM\). This may be due to the SOBDM software. Replacement of the charge port will not resolve this concern. Inform customers that their vehicles can still be charged using a level 1 or level 2 alternating current \(AC\) charger. Engineering is currently working on a software solution expected in Q3 2026. Schedule an appointment with the customer when the repair becomes available. Monitor Professional Technician System \(PTS\) for additional information.
- [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
- [PT\-25.44.24 MachE](/bulletins/11028155.md), 2026-02-04, Over\-the\-air update: ELECTRICAL SYSTEM; POWER TRAIN; UNKNOWN OR OTHER; STRUCTURE:BODY. "25S65 Recall remedy \-Prevents a potential lock\-out condition caused by the vehicle's battery being discharged"
- [TSB 26\-2005](/bulletins/11027722.md), 2026-01-21, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; SEATS. This article supersedes TSB 25\-2058 to update: service procedure enhancements, and increase labor operation allowances. Some of the vehicles listed in the Model statement above may exhibit a 12\-volt battery drain. This may be due to the software level of various modules such as the gateway module \(GWM\), accessory protocol interface module \(APIM\) and driver front seat module \(DSM\).
- [SSM 54388](/bulletins/11025811.md), 2025-12-01, Service bulletin: FUEL/PROPULSION SYSTEM. Some 2021\-2023 Mustang Mach\-E vehicles equipped with nickel, cobalt and manganese \(NCM\) standard/extended range battery with minor feature codes HTHAD/HTHAE and 2022\-2025 e\-Transit vehicles equipped NCM standard range battery with minor feature codes HUKAL/HUKAA may require a high voltage battery module replacement. Technicians can now replace the affected battery module for high voltage batteries with a state of health \(SOH\) of 70% or higher. It is no longer necessary to replace the complete high voltage battery assembly for vehicles with 70% SOH or higher. Additionally, the battery health chart has been updated to display the actual battery SOH as a percentage and now requires the selection of checkboxes corresponding to the specific high voltage battery module\(s\) being replaced. After a high voltage battery module replacement and battery reinstallation, relaunch the Ford Diagnosis and Repair System \(FDRS\) "BECM \- Battery Health" application which will prompt for confirmation of a successful repair.\<br /\>\<br /\> To confirm a vehicle is built with a certain minor feature code, review the build information
- [TSB 25\-2344](/bulletins/11020980.md), 2025-07-30, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. This article supersedes TSB 21\-2245 to update labor times from M\-time to AP\-time and add a cap. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: \* "Stop Safely Now" message in the instrument panel cluster \(IPC\) \* Illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTCs\) P1A10, U0293 and/or U1011 \* Loss of power This may be due to the parameters in the powertrain control module \(PCM\).
- [TSB 25\-2343](/bulletins/11020978.md), 2025-07-30, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This article supersedes TSB 22\-2491 to update labor times from M\-time to AP\-time and add a cap. Some of the vehicle listed in the model statement above may exhibit at least one of the following conditions: \- Illuminated red triangle with diagnostic trouble code \(DTC\) P27B4 stored in the secondary on\-board diagnostic module C \(SOBDMC\) \- Charge Status Indicator \(CSI\) is blinking red with DTC P0A7F stored in the battery energy control module \(BECM\) \- DTC P0CF7 stored in the secondary on\-board diagnostic control module \(SOBDM\) This may be due to an unsecured plug\-in electric vehicle supply equipment \(EVSE\). To correct the condition, follow the Service Procedure to reprogram the SOBDM.
- [TSB 25\-2277](/bulletins/11019887.md), 2025-07-01, Service bulletin: VEHICLE SPEED CONTROL. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: \*Speedometer stays at 1 mph \(1 km/h\) when the vehicle is stopped \*Speedometer lags during deceleration and acceleration \*Car image in the center of the IPC is always displayed \*Speedometer is delayed in displaying on bootup \*IPC bootup is delayed when attempting to start the vehicle directly from accessory mode \*IPC is stuck on the charging/accessory screen when placed in Drive/ready to drive \*After vehicle start up, the lane keeping system status telltale briefly displays \*Buzz noise from the IPC that changes with the brightness setting This may be due to the software in the IPC.
- [TSB 25\-2216](/bulletins/11018618.md), 2025-05-28, Service bulletin: VEHICLE SPEED CONTROL. This bulletin supersedes 24\-2187. Reason for update: Add labor operation A and changed MT to AP with a limit. Some of the vehicles listed in the Model statement above may exhibit a "1 Pedal Drive Fault \- Press Brake Pedal To Reduce Speed" warning message displayed in the instrument panel cluster \(IPC\).
- [TSB 24\-2187](/bulletins/11001647.md), 2024-06-13, Service bulletin: POWER TRAIN. Some 2021\-2023 Mustang Mach\-E vehicles may exhibit a "1 Pedal Drive Fault \- Press Brake Pedal To Reduce Speed" warning message displayed in the instrument panel cluster \(IPC\). The customer may also notice that the 1 Pedal Drive feature has been deactivated. A diagnostic trouble code \(DTC\) P0C2F:92 may also be stored in the secondary on\-board diagnostic module\-C \(SOBDMC\). This concern may also be present when one pedal drive mode is enabled. This may be due to the SOBDMC. To correct the condition, follow the Service Procedure to reprogram the powertrain modules using the latest level of the Ford Diagnosis and Repair System \(FDRS\).

JSON: [/v1/bulletins/11019888](/v1/bulletins/11019888)

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