Technical Service Bulletin TSIB 26-02 — 2025 NEW FLYER XDE40
ENGINE
Bulletin Details
| TSB ID | TSIB 26-02 |
| Manufacturer | |
| Vehicle | 2025 NEW FLYER XDE40 |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
Bulletin describing the proper de-aeration for Allison EGEN Flex Hybrid coolant loops.
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.