AI Damage2018 NEW Flyer XN40: common problems
The maker issued 11 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 11
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 6 |
| Electrical system | 0 | 0 | 2 |
| Structure | 0 | 0 | 2 |
| Engine | 0 | 0 | 1 |
| Engine and cooling | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Technical Instruction describing hos to remove, rework, and replace the stop request sign support bracket,…
Technical Instruction describing hos to remove, rework, and replace the stop request sign support bracket, to promote clearance for electrical wiring.
- Technical Instruction describing how to download a program to the Vansco Programmable Logic Control (PLC)…
Technical Instruction describing how to download a program to the Vansco Programmable Logic Control (PLC) system on buses equipped with under-dash USB port.
- Technical Instruction describing how to remove and replace the front suspension air springs,
- Service Manual Bulletin - Changes to Cummins ISLG and L9N engine oil specifications and oil change intervals
- Technical Service Information Bulletin describing changes to the Cummins ISLG, L9N, ISB6.7G and B6.7N…
Technical Service Information Bulletin describing changes to the Cummins ISLG, L9N, ISB6.7G and B6.7N engine oil specifications.
- Technical Instruction on how to remove and replace the left rear muffler access door, including paint…
- This Service Manual Bulletin provides new OEM (Kongsberg) PM inspection requirements and new installation…
This Service Manual Bulletin provides new OEM (Kongsberg) PM inspection requirements and new installation procedure for the adjustable floor pedal moveable arm on specifically equipped vehicles.
- This Parts Manual Bulletin provides new part number information for the moveable arm kit for the Kongsberg…
This Parts Manual Bulletin provides new part number information for the moveable arm kit for the Kongsberg brake and accelerator assembly on specifically equipped vehicles.
- This Maintenance Instruction Describes How to Update Voltage Equalizer Programming
- This Service Manual Bulletin provides new information on how to check for proper chain tension, as…
This Service Manual Bulletin provides new information on how to check for proper chain tension, as measured by the chain deflection, while performing the ramp mechanism initial adjustments. This bulletin only applies…
- This bulletin provides PM inspection requirements for the K-menber on the fuel tank support structure
Other years of this model
Questions and answers
What are the most common problems with the 2018 NEW Flyer XN40?
There are no owner complaints in the NHTSA data for this year; the data comes from 11 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 NEW Flyer XN40?
NHTSA lists 11 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 NEW Flyer XN40 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.