# 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.

- Type: Service bulletin
- NHTSA id: 11032953
- Published by NHTSA: 2026\-05\-28
- Manufacturer's number: CSR\-3308
- Manufacturer's date: 2026\-05\-28
- Campaign id or software version: CSR\-3308
- NHTSA component: UNKNOWN OR OTHER; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; SERVICE BRAKES

## 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)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032953-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032953-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Electrical system, Lighting

## Vehicles listed

- 2022 to 2025 ALTEC AT SERIES
- 2022 to 2026 ALTEC SERVICE BODY

JSON: [/v1/bulletins/11032953](/v1/bulletins/11032953)

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