2025 New Flyer XHE40 technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Sep 15, 2026 Service bulletinInstructions to load the latest software to prevent single out-of-range isolation samples from causing low...
• Jul 28, 2026 Service bulletinInstructions to accommodate customer requests to add H2 tank pressure and tank temperature gauge on dash...
• Jun 3, 2026 Service bulletinInstructions for uploading the latest software version
• May 23, 2026 Service bulletinInstructions for verifying/correcting torque on front destination sign mounting hardware installed on...
• May 12, 2026 Service bulletinThis ITS provides instructions on how to replace the air intake assembly on certain fuel cells
• Mar 26, 2026 Service bulletinInstructions to verify the upper shock absorber mount hardware is torqued to spec.
• Mar 14, 2026 OtherEmail/letter to customers regarding a coolant leak on some fuel-cell buses.
• Nov 19, 2025 Service bulletinInstructions to update V2 traction inverters with new bootloader.
• Oct 2, 2025 Service bulletinInstructions to replace the original pressure relief valve with a new part with a lower set pressure point.
• Aug 21, 2025 Service bulletinThis Bulletin is being issued due to New Flyer & MCI have received reports that customers are re-torquing...
• Feb 14, 2025 Service bulletinInstruction to Service to update vehicles with ELFA 3 to provide improved BMS response to overcharging and...