Service bulletin SIL-3227
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 | 11019749 |
| Published by NHTSA | 2025-06-26 |
| Manufacturer's number | SIL-3227 |
| Manufacturer's date | 2025-07-03 |
| Campaign id or software version | SIL-3227 |
| NHTSA component | SERVICE BRAKES; UNKNOWN OR OTHER; ELECTRICAL SYSTEM |
NHTSA's summary
Altec has learned that the trailer wiring harness on certain Freightliner chassis with Altec forestry bodies manufactured from July 2021 to February 2025 supplies constant voltage to the trailer brakes, causing the trailer brakes to always be engaged.
The document
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
| ALTEC FORESTRY BODY | 2021 to 2025 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.