Service bulletin CSR-3308

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

Altec Industries, Inc. has received notification from Ford Motor Company that a condition relating to motor vehicle safety exists in certain 2022-2026 Super Duty vehicles equipped with Altec equipment. 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, the trailer's stop lamps and turn signal indicators will not function. This may result in inoperable trailer brake lights, turn signals, and braking functions, reducing a driver’s ability to control an attached trailer and making it less visible to other drivers, increasing the risk of a crash.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Electrical system, Lighting

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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