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 Br…
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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
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