Electrical System Problems of Ford F-350 - part 1

Fuse box is allowing moisture in causing horn to not stop and truck to remain running. Ford has updates in their manual that this is a problem but no recall issued.

See all problems of the 2022 Ford F-350 🔎.

While traveling with my fifth-wheel camper attached, my 2022 Ford F-350 super duty (6. 7l power stroke) suddenly developed a complete no-crank condition. Prior to the failure, the vehicle displayed multiple electrical warnings, including u0100 (lost communication with pcm), high engine temperature, advancetrac, blind spot system fault, hill start assist, and pre-collision assist warnings. The vehicle ultimately became disabled and would not crank or start, leaving me stranded away from home while towing a trailer. Repair description after troubleshooting the vehicle, I discovered severe internal corrosion inside the under-hood battery junction box (bjb). The corrosion appeared consistent with Ford technical service bulletin 23-2133 regarding moisture intrusion into the battery junction box on certain 2020–2022 super duty trucks. I purchased a genuine Ford replacement battery junction box from a Ford dealership and installed it. Immediately after replacement, the vehicle started normally and all warning messages disappeared. I retained the failed battery junction box and have photographs documenting the internal corrosion. Safety concern my concern is not simply the repair cost but the safety implications of this failure. The vehicle became completely disabled while towing a fifth-wheel trailer during travel. A sudden electrical failure affecting the battery junction box can leave occupants stranded and may create hazardous situations if it occurs in remote locations or during travel. Because Ford has issued a technical service bulletin addressing moisture intrusion into the battery junction box, I believe this condition should be evaluated to determine whether additional action is warranted.

The backup camera on the tailgate fails about 50% of the time when shifting into reverse. The screen is black. When it fails, I can sometimes get it to work by opening, then slamming the tailgate. I suspect that there is an intermittent open circuit in the camera system. This presents a dangerous situation when trying to back this very large dual rear wheel vehicle. This is not related to the current recall for another issue with the camera when backing into a darkened area.

See all problems of the 2020 Ford F-350 🔎.

I was driving my truck home when it completely shut off, I lost all power to everything, including the power steering brakes. When I got home, I did some research on the internet to see possible causes. Apparently there is a service bulletin for the fuse box having water getting into it from the cowl of the hood, which states it can do exactly what happened to my truck? you can also keep your truck running and not shutting off and just to hold host of other safety issues with the service bulletin. . So I brought my truck in to get diagnosed by Ford and they did indeed say it was the fuse box under the hood that got water into it and shorted it out. Ford would not cover this part even though I have a factory extended warranty, annoying this is a common issue for 2020 to 2022 Ford trucks they issued a recall on expeditions in a couple other vehicles, but not Ford trucks specifically the super duties. How is this? ok that they don’t tell a customer who purchased a vehicle that this could potentially happen and then when it happens, they refuse to cover anything even though it’s their fault why it happened.

See all problems of the 2021 Ford F-350 🔎.

I am filing this complaint regarding my Ford F-350, VIN [xxx], which caught fire on xxx. The truck had approximately 130,000 miles, which I consider low mileage for a properly maintained diesel Ford F-350. These trucks are known for long service life, and many Ford diesel trucks routinely remain in service for 20 years or more and exceed 250,000 miles when properly maintained. For that reason, I did not expect a sudden and catastrophic fire in a truck with only 130,000 miles. While driving, passing motorists alerted us the truck was on fire. The fire appeared to originate in the engine compartment and spread extremely rapidly. Within a very short period, the front of the truck was engulfed in flames and sustained catastrophic damage. Based on the speed and severity of the fire, I am concerned a failure in the engine compartment, fuel system, electrical system, or another vehicle component may have caused or contributed to the fire. This truck has been well maintained, kept clean, and responsibly cared for. I followed the manufacturer’s maintenance guidelines and did not expect a sudden engine-compartment fire. After the fire, I found reports of other F-350 fires and references to fire-related complaints and investigations. This raises serious concerns Ford may have known of a potential fire risk involving these trucks. This incident created major safety hazard not only to the occupants of the truck, but to other motorists and anyone nearby. Had passing drivers not alerted us, the outcome could have been far worse. The severity of the fire required a major emergency response, including multiple fire trucks and police. A vehicle fire of this magnitude presents an obvious risk of serious injury or death. I request NHTSA investigate Ford F-350 and vehicle fire incidents to determine whether a defect involving the fuel system, electrical system, or related parts may cause these trucks to catch fire without warning. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2017 Ford F-350 🔎.

I was under the truck working on it and the truck was on I had the emergency brake on and the truck went into reverse and ran me over.

See all problems of the 2003 Ford F-350 🔎.

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.

The contact owns a 2024 Ford F-350. The contact stated that after reversing into the driveway and parking the vehicle, the engine was turned off while the vehicle was in reverse(r). The contact exited the vehicle and entered the residence. Moments later, the vehicle erroneously rolled down the driveway downhill and collided with a building on the property. The contacted stated that the automatic return to park (p) safety feature failed to engage, causing the incident. The vehicle was later driven to the local dealer for repairs. The manufacturer was not yet contacted. The failure mileage was 30,000.

See all problems of the 2024 Ford F-350 🔎.

While towing any trailer with electric brakes it appears the integrated trailer brake controller is briefly applying trailer brakes unexpectedly. Very brief but very hard, resulting in an extreme rearward pull on the truck. It happens at exactly 60 minute intervals, at any speed, uphill, downhill and level flat road. I've had the trailer 7 way plug and wire inspected, no problem found. Next step will be to have Ford dealer inspect truck electronics.

Charging system fault. Caused multiple error messages like forward camera not available, collision avoidance not available. Then radio goes black and reboots. Several cycles later the dash board goes dark. No speed or rpm anything visible for 5-10 secs, and on some reboots this dark dash lasted 30 seconds. Thankfully while traveling at midnight the head lights and tail lights remain on, just no interior lights during these reboots. New batteries made no difference.

I purchased 2, 2024 f350 super duty's for our highway dept. The camera systems on both trucks failed. This includes the backup camera and forward facing camera. I found a recall notice (24s66) for this exact problem affecting 2024 f350's. I brought mine to the dealership and was informed that my VIN was not included in the recall. The repair would cost $1,200. A check of the second trucks VIN was not included either. I will be filing another report for that truck as well. Thanks, [xxx] superintendent of highways town of cairo [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

This is truck number two of two trucks with the same issue. I purchased 2, 2024 f350 super duty's for our highway dept. The camera systems on both trucks failed. This includes the backup camera and forward facing camera. I found a recall notice (24s66) for this exact problem affecting 2024 f350's. I brought mine to the dealership and was informed that my VIN was not included in the recall. The repair would cost $1,200. A check of the second trucks VIN was not included either. [xxx] superintendent of highways town of cairo [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2022 Ford F-350 sd. The contact stated that while attempting to accelerate from a complete stop, the vehicle lost power. There was no warning light illuminated. The vehicle was able to restart. The contact received notification of NHTSA campaign numbers: 25v455000 (fuel system, gasoline), 25v686000 (back over prevention), 26v104000 (electrical system, exterior lighting), and 26v204000 (visibility); however, the parts to do the recall repairs were not yet available. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer stated that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.

When putting truck in reverse the rear cameras pop on the 12 inch screen, as I was backing up the screen flashed couple times and froze. Not knowing with no beeping, no real time video or even the collision control braking did not work causing me to back into a concrete light post causing damage to the rear bumper and side panel. This has flickered couple times before but not like this. The truck only has 2502 miles on it.

See all problems of the 2025 Ford F-350 🔎.

While flat towing my 2022 Ford f?350 behind a motorhome using Ford’s neutral tow mode procedure, the vehicle suffered a catastrophic transmission failure. The Ford dealer documented this clearly on the service invoice: “happened while the vehicle was flat towed. ” after the tow, the truck had severe slipping, delayed engagement, high rpm with no movement, and a wrench light. The dealer confirmed fault codes p0741, p1744, and p27b4. The dealer found catastrophic internal damage: “fluid is burnt with metal debris… filter is packed with metal debris… torque converter has came apart and filled transmission with metal debris… it is catastrophic failure. ” these components are available for inspection. The dealer also documented a low battery condition: “batteries. Low state of charge. ” Ford’s neutral tow mode relies on electronic control modules that require stable voltage, but Ford provides no warning that low voltage can cause the transfer case to exit neutral tow mode. This creates a safety risk because the transmission can be rotated internally without lubrication while being towed, which can lead to sudden drivetrain lockup or loss of control. The problem was confirmed by the Ford dealer, and the vehicle was fully inspected by them. The only warning symptom occurred after towing: wrench light, slipping, and no movement. There were no warnings during the tow itself. This failure mode is not disclosed by Ford and cannot be detected or prevented by the owner.

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.

The contact owns a 2020 Ford F-350. The contact stated that while parked and turned off, he observed a loud explosion noise while he was inside his residence. The contact stated that he left his residence to investigate, and he observed the front of the vehicle and the cabin of the vehicle engulfed in flames. The fire department was called, and they extinguished the fire. Medical attention was not needed. A police report was filed. The vehicle was not diagnosed, repaired, or moved. The manufacturer was notified of the failure. The failure mileage was 170,000.

The contact owns a 2022 Ford F-350. The contact stated while driving at an undisclosed speed, the trailor lights and the brake lights failed to function as intended. No warning lights were ullimunated. The vehicle was taken to the dealer where it was diagnosed with a malfunction with the trailor brakes and service brakes. The contact was informed that the parts were unavailable. The vehicle was not repaired. The contact received a recall notification, NHTSA campaign number 22v193000 electrical system) however the parts were unavailable.

Vehicle produced symptoms over time: loss of Ford pass connectivity, inconsistent turn signal function, occasional dashboard alarm for open driver door while driving, unwarranted security alarm triggers when still at home. Second to last incident was an unwarranted security alarm that triggered, and was unable to be stopped by use of the security controls (lock/unlock, alarm key button). Horn "wore out" as if fuse burned. Disconnected battery to stop. Two days later, after reconnecting the battery I drove the vehicle, horn was not functional, and I was unable to stop the engine. Once started, the vehicle did not turn off, even with key completely removed from ignition switch. This was repeatable, every ignition cycle, thereafter. I drove to the dealer, that morning. The dealer mechanic was required to shut off the engine. Dealer mechanic diagnosed failed battery junction box. After repair, mechanic diagnosed faulty body control module. Dealer mechanic also recommended replacement of full "main" wiring harness, interconnecting the two. The cause for all failures was corrosion and electrical shorts due to water ingress. I am aware Ford has issued numerous tsbs and recalls for faulty bcms, in the same age range as this vehicle. Also, tsbs for water intrusion into the bcm. The mechanic took photos of corrosion on both the bcm and main wiring harness. My prior vehicle was a 2011 Ford f-150, with the same 6. 2l engine. No such faults were experienced up to Nov. 2023 sale. Photos of the corrosion on main wiring harness and bcm attached. Dealer has possession of the vehicle. Repairs in progress. Ford has declined support for faulty components; recalls not associated with this vehicle. Estimated repairs to date on 6 year old vehicle on critical electronics in excess of $7,000.

I own the 2024 f350 dually truck and regularly tow heavy trailers for commercial transport under dot regulations. I have experienced repeated intermittent failures involving the truck’s trailer brake and trailer lighting system. While towing, the truck intermittently displays warning messages on the dashboard such as “trailer brake module fault” and “trailer light module fault. ” when this occurs, the trailer’s right rear brake light stops functioning, and at times the trailer braking system stops working entirely. This issue occurs sporadically and without warning. The trailer may function normally at the start of a trip and then lose lighting or braking capability during operation. One notable pattern is that when I shut the truck off and restart it, the faults clear and the trailer brakes and lights begin working again. This suggests the issue may be related to the truck’s trailer brake or trailer lighting control module resetting rather than a defect in the trailer itself. Because of the repeated failures, I inspected and repaired my trailer multiple times. I have: replaced the affected trailer light inspected and checked all trailer wiring and connectors verified the trailer braking system and wiring integrity despite these steps, the problem continues to occur. I have taken the truck to a Ford dealership multiple times, and they have stated the issue is with the trailer. However, the trailer has been inspected and repaired, and the problem still persists. I recently became aware of a recall affecting Ford trucks related to the trailer brake control module and trailer lighting system, which appears to mirror the exact symptoms I am experiencing. This issue presents a serious safety hazard. When the malfunction occurs: trailer brake lights may not function properly trailer brakes may stop working drivers behind me may not be aware the vehicle is slowing or stopping because I regularly tow heavy trailers, loss of trailer braking and lighting creates a significant.

The contact owns a 2022 Ford F-350 sd. While driving at an undisclosed speed and hauling a trailer, there was a delay with the trailer brakes before the trailer brakes engaged, causing the braking distance to be extended. Occasionally, the trailer brakes failed to engage, causing the electric brakes to activate and stop the vehicle. The contact became aware of NHTSA campaign number: 25v132000 (electrical system) on the NHTSA. Gov website, which referenced a similar failure. The dealer was made aware of the failure. The dealer informed the contact that the VIN was not included in the recall. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not included in the recall. The manufacturer opened a case for the failure; however, no assistance was provided. The failure mileage was approximately 94,000.

All cameras went out on the f350 with a blue screen there’s a recall on this but my truck is not included and needs to be expanded.

See all problems of the 2023 Ford F-350 🔎.

When the truck idles it randomly shuts off completely and shows a sign on dash of 'vehicle may not start/restart please service' then it will disappear. It never shows any codes when hooked to machine in repair shop. This is a huge safety concern while driving and hauling trailers with equipment since all power is lost when it happens. It has been looked at by the dealership 3 times and they were unable to locate issue as stated on service receipt. No warnings prior and truck was purchased 3/2025 and the issue started 1/26 and still continues.

Our passenger side heated mirror is melting. We are unsure as to the plastics used and why it is melting. This mirror is also a heated mirror with electric connected to it. The Ford dealer told us that Ford will not repair this under warranty. Why is this melting. What type of cheap plastic did they use. Please help us getting to the bottom of this. Thank you.

See attached document for complaint.

I bought a new Ford f350 superdury on 10/24/2025 with 73 miles on it. I drove 110 miles to my parking lot and then on 10/27/2025 morning the vehicle spontaneously caught fire under the dashboard.

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.

My vehicles turn signal audio indicator is extremely quiet and cannot be heard at speeds above 45mph creating a safety issue. I have checked the vehicle audio settings in addition to the vehicle owner manual and there is no user setting to adjust audio. I asked the dealer where I purchased my vehicle (northtown Ford, menomonie, WI) about the issue and they did not have a solution.

The contact owns a 2021 Ford F-350. The contact stated that while driving 65 mph, the disconnect/reconnect message was displayed on the instrument panel. The contact stated that while depressing the brake pedal with the trailer brake control, the system indicated that there was no trailer detected. An independent mechanic was contacted. The vehicle was taken to an independent mechanic to be diagnosed; however, the diagnostic result was unknown. The contact stated that the fuses, wiring harness, and trailer brake control were replaced. The contact related the failure to NHTSA campaign number: 22v193000 (electrical system); however, the VIN was not included in the recall. The manufacturer was notified of the issue and informed the contact that a mechanic would be sent to inspect the vehicle. The failure mileage was 200,000.

My back up camera is not working.

See all problems of the 2019 Ford F-350 🔎.

Synce 4 infotainment center with loose connection to phone causing phone to connect and disconnect and become statickey while driving. Ford dealerships when contacted do not have a fix and two dealers have said its a very common issue but no fix for it. Safety risk is that while you think your hands free on the phone when it goes in and out of connection can cause a major distraction while driving. I have had two dealers provide feedback that this is an issue but not one that has a fix that they can do. It has not been inspected by police or insurance agent there is no warning lamps that have gone off.

Loss of power to trailer brakes. Lights work, brakes get no power. Tested at plug on truck, no brake power, fuses checked, all still good. No messages for disconnected trailer.

The contact owned a 2025 Ford f sd-350. The contact stated that while driving back to the residence, after picking up the vehicle from the dealer, a burnt odor was emitting from the vehicle. The burnt odor was emitting from the a/c vents. Smoke was emitting from underneath the dashboard where the driver-side windshield was located. No warning lights were illuminated. The contact called the dealer and advised them that the vehicle was on fire. The contact was not injured. No police report was filed. The contact returned to the dealer; flames were visible, and some of the employees used water to extinguish the fire. The vehicle was diagnosed with the speaker located on the driver's side having melted and damaged the curtain side air bag located above the driver's side door. The contact stated that this was the second time the vehicle had caught fire due to the speaker on the driver's door. The contact stated that the vehicle was bought this year after he sold the first vehicle when multiple messages were displayed: hill assist not available, limited parking brake function not required, and unknown collision not available. The infotainment system screen displayed a dark screen or would fail to turn on. The contact bought a 2025 Ford f350 in April 2025. The contact stated that on a separate occasion, the ignition failed to function as intended. It would take several attempts to start the engine. The vehicle was taken to the dealer. However, no cause for the failure was found. The contact stated that on a separate occasion, multiple messages were displayed on the dashboard. The contact stated that after a stop, the vehicle failed to switch gears independently, the vehicle went into limp mode, and the contact had to switch to manual mode. No warning lights were illuminated. The contact sold the vehicle and purchased the new vehicle. The manufacturer was notified of the failure and advised the contact that someone would be contacting them back. The manufacturer asked that the contact not take the vehicle to the dealer u.

The junk cab mounts deteriorate so fast the cab settles and crushes the wiring harness causing many electrical issues. There are many forums that talk about bad cab mounts and what components to use to repair them, but in my opinion this is a Ford issue.

See all problems of the 2016 Ford F-350 🔎.

1 month ago my vehicle intermittently would not shut off. You could hit the start/stop button and from all dash board appearances the truck was off, but the truck was still running. I resorted to pulling a circuit breaker to get the truck off. I found NHTSA 10226938 and replaced the battery junction box as prescribed. This fixed the vehicle for a few weeks, but now the issue is back. There is no water intrusion in the bsb junction box.