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Service bulletins for the 2025 New Flyer Xcelsior

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.

4 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
TSIB 26-082026-08-12. Service bulletin. SERVICE BRAKES. This bulletin introduces new improved banjo bolts for buses equipped with a Haldex tandem air dryers. The updated banjo bolts feature enhanced corrosion resistance and are designed to replace the current banjo bolts to help minimize corrosion-related issues that may affect air dryer performance and reliability.
ITS617832026-06-26. Service bulletin. ELECTRICAL SYSTEM. Instructions for uploading a program to move existing J1939 message routing from DPS instrument cluster to PVSG.
TSIB 26-062026-05-14. Service bulletin. ELECTRICAL SYSTEM. Bulletin to follow when replacing LV batteries on buses equipped with certain Vanner battery equalizers.
TSIB 25-032025-05-07. Service bulletin. SERVICE BRAKES. This TSIB identifies the special procedures necessary when the bus is not in regular use and the air compressor is operated at a low duty cycle.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.