Technical Service Bulletin SSM 53889 — 2025 FORD F-450 SD
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | SSM 53889 |
| Manufacturer | |
| Vehicle | 2025 FORD F-450 SD |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
Some 2023-2025 F-Super Duty vehicles equipped with a trailer brake control module may exhibit a "Trailer Disconnected" message after cycling the ignition off and back on with a trailer connected. This may be due to the presence of an integrated battery charger on a trailer equipped with electric over hydraulic brakes. If trailer functionality is restored after unplugging and plugging the trailer connector back in while the ignition is on, this condition can be corrected by downloading and performing the "Trailer Brake Configuration" application using the latest version of the Ford Diagnosis and Repair System (FDRS) scan tool. For claiming, use causal part 19H332 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2025 FORD F-450 SD
SSM 54507
ELECTRICAL SYSTEM
ECG2-25.2.8.5 SuperDuty
ELECTRICAL SYSTEM
25P35
STRUCTURE:BODY
25L04
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
TSB 25-2420
POWER TRAIN
SSM 54052
STEERING
TSB 25-2264
POWER TRAIN