AI Damage2021 NEW Flyer XD35: common problems
The maker issued 6 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 6
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 2 |
| Seats | 0 | 0 | 2 |
| Engine | 0 | 0 | 1 |
| Fuel/propulsion system | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
| Other | 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.
- Seats. Occupant sensor, power adjustment, seat mounts.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Instructions to inspect flooring for ridge/raised area, pull back flooring, add screws and re-apply…
Instructions to inspect flooring for ridge/raised area, pull back flooring, add screws and re-apply flooring in between front luggage racks.
- Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR -…
- Instructions to adjust certain cantilever mounted seats and adjust them to proper height
- Instruction to Service 60838 to check/replace fuse box mounting hardware as required
- Technical Instruction describing how to tighten hardware and replace rivets on upper deck cantilever seats…
- This technical instruction describes how to replace dust covers and seal and protect the harnesses…
This technical instruction describes how to replace dust covers and seal and protect the harnesses associated with the Smart Rider suspension leveling system for 40 foot buses with components installed on both axles.
Other years of this model
Questions and answers
What are the most common problems with the 2021 NEW Flyer XD35?
There are no owner complaints in the NHTSA data for this year; the data comes from 6 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 NEW Flyer XD35?
NHTSA lists 6 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 2021 NEW Flyer XD35 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 2021 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.