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2021 Ford F-250 SD electrical complaints

Page 2 of 2: complaints 11 to 18 of 18, newest first, as owners wrote them.

See the summary of 2021 Ford F-250 SD electrical problems: which part fails, at what mileage and related recalls.

Filed Apr 22, 2024 · Electrical · 19,234 miles · IN

The contact owns a 2021 Ford F-250 trailered to a 2021 Artic Wolf 291R camper. The contact stated that while driving the vehicle at approximately 30-50 MPH, the trailer brake was not responding and the message "trailer brake wiring fault" was displayed. The contact stated that the vehicle was not taken to the dealer. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 19,234.

Filed Feb 17, 2024 · Electrical · CA

Brought truck into Hansel Ford Dealership in Santa Rosa CA for recall issues, oil change and then an issue with Horn. Horn would not turn off, even with truck off. Had to disconnect battery and take fuse out for horn. Was told by Hansel that there is an issue with this but its not a recall issue. The BJB Box had moisture inside and needed replacing. Our mileage was just outside original manufacturer warranty by I believe 900 miles. We had also purchased an extended warranty. Extended warranty will not cover. I would like FORD to pay for this issue as we arent the only ones. 2022 Ford F250 . Truck is STILL at the dealership.

Filed Dec 19, 2023 · Electrical · 63,000 miles · AL

The contact owns a 2021 Ford F-250. The contact stated while driving 45 MPH and attempting to alert another driver, the contact became aware that the horn was not functioning properly. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the horn. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 63,000.

Filed Oct 18, 2023 · Electrical · 52,000 miles · NM

The contact owns a 2021 Ford F-250. The contact stated that while driving at an undisclosed speed, an abnormal odor was detected. The vehicle was taken to the dealer, where it was diagnosed that the battery had exploded and was leaking battery fluid. The contact was informed that the battery needed to be replaced. The contact stated that the battery had previously been replaced in 2021 for the recurring failure. The vehicle was then taken to AutoZone, where the battery was replaced. The manufacturer was made aware of the failure. The failure mileage was approximately 52,000.

Filed Sep 18, 2023 · Body, Electrical · 43,000 miles · MI

The contact owns a 2021 Ford F-250. The contact stated there was an abnormal odor cat odor in the vehicle after a car wash or during inclement weather. The driver added an air freshener to the vehicle. The contact stated that the odor was stronger while using the A/C unit in the recycle air position. Additionally, the molding strip had detached from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, who added spray to the air filter and checked for dead animals. The vehicle was taken to an independent body shop, which replaced the weather strip. The manufacturer was not contacted. The failure mileage was approximately 43,000.

Filed May 9, 2023 · Brakes, Electrical · NJ

During towing of 10,000lb trailer, the trailer brakes cut out during heavy braking and the dash displayed "wiring fault". Also, sometimes during normal braking, the trailer brakes will cut in and out, if you watch the gain meter during these episodes, the gain meter will also cut in and out. My and my families safety was definitely put at risk and now we were fully dependent on only the truck brakes to stop our vehicle and trailer. The dealer checked the vehicle on 5/9/23 and say there is nothing wrong with the truck. There is an active safety recall (22S17) covering trailer brake controllers for Super Duty vehicles, however, it seems to be limited to model year 2022, even though my vehicle was built at the same plant during the same time period covering this recall. I intend to have the dealer perform the required repair at my expense, and hopefully this recall will be expanded to cover my model year. This is a very dangerous situation.

Filed Jan 14, 2023 · Body, Electrical · NC

This is what happen Thursday Night to my Truck sitting in my drive way. My entire wiring harness on the drivers side was under water.. I drove it to the dealership and it was still pouring water from the rear plugs. I have rubber floor mats and wouldn't have even noticed the issue if I didn't pull them to clean the truck. There are tons of truck having this issue. to fix it properly the bed has to be taken off the truck. The insurance company's total cars for electrical being covered in water. This is a recall issue Ford Surly needs to address and fix. Go look at this video fast forward to the 4 minute mark. https://youtu.be/9azod47j8KM

Filed Oct 17, 2022 · Brakes, Electrical · TX

When towing a trailer, the Trailer brakes stop working. the brakes, using the pedal and lights all work perfectly on truck and trailer. But if you squeeze the brake control paddles, you immediately get a trailer disconnected message and although all lights still work, the brake controller does NOT. Then sometimes, just driving and perhaps stopping at a gas station, the trailer brakes also stop working and you don't realize until going down a hill. This has happened multiple times. I start out just fine and then ?

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