2026 Ford F-350 Sd

When we plug our F350 into our fifth wheel trailer, the lights work until we put the brakes on once we apply the brakes the rear right brake light and turn signal no longer work. So we are forced to drive with only one working brake light and tail light when we disconnect and reconnect. It does the exact same thing again we have had two other pick ups both GM products connected to our trailer and it works perfectly. We’ve had a mechanic look at it and tell us it was not our trailer. It is our truck. I’ve contacted Ford who refuses to do anything about it. We get brake module error messages from the truck as well as brake lighting, module errors from the truck.

NHTSA ID

11755987

Incident

Aug 10, 2026

I purchased my 2026 Ford F-350 Platinum from Sandy Sansing Ford Lincoln on June 11, 2026. I was not informed that the vehicle has two unrepaired/unresolved Recall's. Both of the recalls were issued in March, 2026. The Dealership had this vehicle on their lot from September, 2025 to the date that I purchased it. The first recall is 26E01 "Powertrain Control Module PCM Software" and the second recall is 26C10 "Trailer Module Reprogramming." I was not aware of and it was never brought to my attention at the time of sale that the vehicle had two recalls and, I purchased the vehicle three months after both of these recalls were issued.

NHTSA ID

11747451

Incident

Jun 11, 2026

Recall service not available right now. We have a remedy but parts are not available right now. We will inform you when the service is available. Or, you can contact your dealer.Description On your vehicle it is possible that the trailer module trm may lose communication at vehicle start-up. If a trm loss of communication occurs and a trailer is connected to the vehicle, trailer stop lamps and turn signal indicators will not function. Additionally, for trailers equipped with electronic trailer brakes, the trailer brakes will not function. This loss of communication can occur with-or-without a trailer connected to the vehicle and can only initiate at vehicle start-up. If this occurs, a trailer brake module fault notification will pop-up on the vehicles instrument panel cluster. The vehicle brake and turn signal lamps will continue to operate normally and are not affected by this trm fault. If you do not tow with your vehicle, you may wait for ota deployment for your vehicle remedy. Safety Risk This may result in inoperable trailer brake lights, trailer turn signals and trailer braking functions that can reduce a drivers ability to control an attached trailer and make the trailer less visible to other drivers, increasing the risk of a crash. Remedy Software is available to repair your vehicle. Ford Motor Company has authorized your dealer to reprogram your vehicles trm free of charge. Next Steps Contact your dealer for more information to schedule the free service.

NHTSA ID

11744637

Incident

Mar 18, 2026

Description On your vehicle, it may be possible to experience a noisy, partially inoperable, or completely inoperable heating ventilating and air conditioning HVAC blower Motor. Safety Risk An inoperable or partially inoperable HVAC blower Motor may affect windshield defrost and defogging capability, which can decrease visibility under certain driving conditions, increasing the risk of a crash. Remedy Parts are available to repair your vehicle. Ford Motor Company has authorized your dealer to inspect and possibly replace the blower Motor assembly. Free of charge. Next Steps Contact your dealer for more information to schedule the free service.

NHTSA ID

11743721

Incident

Oct 27, 2025

Vehicle will lurch on cold start up. This occurs while in park on a level surface.

NHTSA ID

11742423

Incident

May 6, 2026

pre-collision assist does not give audible, alert or brake did over 50 high risk test with people, automobiles and boxes at high speeds Test drove another F350 at the Dealer lot with the same problem I believe this is a module build issue with the Software [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11735091

Incident

May 1, 2026

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

Some 2025-2026 Bronco/Bronco Sport/Corsair/F-150/F-Super Duty/Maverick/Mustang/Mustang Mach-E/Ranger vehicles may exhibit a no audio/sound condition. This may be due to the software in the audio control module (ACM). To determine if it is a software concern, disconnect the vehicle's 12-volt battery cables for 10 minutes and reconnect. If the concern is still present, continue with normal diagnostics in Workshop Manual (WSM), Section 415-00 Information and Entertainment System > General Information > Diagnosis and Testing and repair as necessary outside of this article. If the no audio/sound concern is resolved, reprogram the ACM using the latest software level of the Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 18C869 and labor operations 10654C, 12651D and 12651D4.

Some 2023-2025 Mustang Mach-E and 2024-2026 F-Super Duty vehicles equipped with a 360-degree camera may exhibit a distorted or corrupted 360-degree camera image in the center display screen, but the rear-view camera image is operating correctly. To restore the 360-degree camera image, download and run the "IPMA - Reset the Image Processing Module A (IPMA) Calibration Data" application using the Ford Diagnosis and Repair System (FDRS) scan tool. Then download and run the "IPMA - 360 Degree View Camera Alignment" application. Inform customers that they can continue to drive the vehicle and engineering is currently working on a software solution for this condition that is expected in Q3 of 2026. Replacement or reprogramming of the IPMA will not resolve this condition. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available. If a vehicle exhibits this condition, enter a vehicle identification number (VIN) and click the "Submit Global Concern Report (GCR)" link at the upper right of the PTS

Some 2023-2026 F-Super Duty vehicles equipped with a 10R100 or 10R140 transmission may exhibit an intermittent failure to engage forward or reverse gears and/or a loud whining noise. Additionally, the driver will be able to shift back to park. This may be due to PCM software being unable to command the transmission solenoid clutch actuators when the battery has a low state of charge (SoC) and/or the vehicle has been jump started. To restore proper transmission functionality, charge the battery as stated in the Workshop Manual (WSM), Section 414-01 Charging System > General Information. Cycle the ignition on then off and leave the vehicle off for 5 minutes to confirm the condition is no longer present. To prevent this issue from reoccurring, refer to the Owner's Manual > Storing Your Vehicle > Preparing Your Vehicle for Storage > 12V Battery. Replacement of transmission components will not resolve this condition. Inform the customer that the condition has no impact on transmission durability. For claiming, use causal part 12A650 and labor operations 12650D, 12650D45, and 12650D81.

Some 2023-2026 F-Super Duty vehicles equipped with a 10R100 or 10R140 transmission may exhibit an intermittent failure to engage forward or reverse gears and/or a loud whining noise. Additionally, the driver will be able to shift back to park. This may be due to PCM software being unable to command the transmission solenoid clutch actuators when the battery has a low state of charge (SoC) and/or the vehicle has been jump started. To restore proper transmission functionality, charge the battery as stated in the Workshop Manual (WSM), Section 414-01 Charging System > General Information. Cycle the ignition on then off and leave the vehicle off for 5 minutes to confirm the condition is no longer present. To prevent this issue from reoccurring, refer to the Owner's Manual > Storing Your Vehicle > Preparing Your Vehicle for Storage > 12V Battery. Replacement of transmission components will not resolve this condition. Inform the customer that the condition has no impact on transmission durability. For claiming, use causal part 12A650 and labor operations 12651D, 12651D45, and 12651D80.

This bulletin supersedes 26-2112. Reason For Update: add 2026 model year vehicles, update LV fluid XT-10-QLVC and CXT-10-LV6 description to add "Transfer Case Fluid 4WD Only", and update Step 4 to inspect/replace 7H351 and 7B177 outside of this article. 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 MIL with DTCs P0757 and P2701 This may be due to a damaged one-way clutch (OWC).