AI DamageNEW Flyer D40LF: problems, complaints, bulletins
Summary for the NEW Flyer D40LF across 2 model years: 2 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
| Year | Owner complaints | involving a crash | Technical service bulletins (TSB) | YouTube repair videos |
|---|---|---|---|---|
| 2001 | 1 | 1 | 0 | 0 |
| 1998 | 1 | 0 | 0 | 0 |
What fails most often
- 1 Engine and cooling 50% of all complaints
- 2 Parking brake 50% of all complaints
- 3 Service brakes 50% of all complaints
- 4 Structure 50% of all complaints
- Engine and cooling: 1 complaints (50% of all).
- Parking brake: 1 complaints (50% of all).
- Service brakes: 1 complaints (50% of all), 1 of them with a crash reported by the owner.
- Structure: 1 complaints (50% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 1 | 0 | 0 |
| Parking brake | 1 | 0 | 0 |
| Service brakes | 1 | 1 | 0 |
| Structure | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Tl contact owns a 2001 new flyer low floor bus. The vehicle would not stop when the brake pedal was depressed. A mechanic stated that something in the air system is momentarily reducing the amount of air that is received through the hydraulic braking system.
Body of the coach is falling apart due to the nuts that hold the floor down are coming apart. Also, there is a leak which is coming from seals to the engine head gasket that go around the water that is leaking. In addition, emergency brake doesn't work.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Parking brake. Electric parking brake, codes, calipers.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Other models of this make
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 2026-11-06.