Technical Service Bulletin FleetCom_HVAC Eco Mode — 2026 WESTERN STAR 49X
VISIBILITY/WIPER
Bulletin Details
| TSB ID | FleetCom_HVAC Eco Mode |
| Manufacturer | |
| Vehicle | 2026 WESTERN STAR 49X |
| Component | VISIBILITY/WIPER |
| Communication Date |
Bulletin Summary
Fleet Communications for HVAC Eco Mode - SoP Disabled Jan 2026
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.