Technical Service Bulletin SIL-3227 — 2021 ALTEC FORESTRY BODY
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | SIL-3227 |
| Manufacturer | |
| Vehicle | 2021 ALTEC FORESTRY BODY |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin 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.
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.