RoadVitals

2018 New Flyer Xcelsior Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Latest May 20, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2018 New Flyer Xcelsior, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Electrical150.0%
  • Engine150.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

1
report

From owner reports, verbatim

Greensboro Transit Agency (GTA), operated by RATP Dev USA, is formally notifying you of an engine compartment fire involving one of our transit vehicles. Vehicle Information: •Fleet Number: 764 •Manufacturer: New Flyer •Vehicle Type: Heavy-Duty Transit Bus •Incident Date: [XXX] •Location: Greensboro, North Carolina Summary of Incident: While in revenue service, the operator reported hearing an abnormal noise and observed white smoke coming from the rear engine compartment area. The operator safely evacuated passengers and emergency responders arrived quickly to suppress the fire. No injuries or fatalities occurred. A third-party fire investigation was conducted by Halsey King & Associates. Based on the preliminary findings, the fire is believed to have originated from a catastrophic failure of the Thermo King A/C compressor clutch bearing assembly. The bearing reportedly overheated, seized, and caused the compressor belt to ignite while still being driven by the engine. The investigation identified evidence consistent with: •A seized A/C compressor clutch bearing •Extreme heat generation within the clutch assembly •Belt ignition and progression of fire through engine compartment components At this time, our maintenance records do not indicate any previously documented defects associated with this specific Thermo King assembly prior to the incident. Our fleet currently has inspection and preventive maintenance procedures in place related to belt alignment, pulley alignment, belt tension, clutch air gap measurement, and related A/C system inspections. We are providing this notification for awareness, documentation, and any further review deemed appropriate. Please let us know if additional information, photographs, maintenance records, or investigative documentation are required. Respectfully, [XXX] Assistant General Manager / Maintenance Director Greensboro Transit Agency RATP Dev USA [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11738944 · filed May 20, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

1
report

From owner reports, verbatim

Greensboro Transit Agency (GTA), operated by RATP Dev USA, is formally notifying you of an engine compartment fire involving one of our transit vehicles. Vehicle Information: •Fleet Number: 764 •Manufacturer: New Flyer •Vehicle Type: Heavy-Duty Transit Bus •Incident Date: [XXX] •Location: Greensboro, North Carolina Summary of Incident: While in revenue service, the operator reported hearing an abnormal noise and observed white smoke coming from the rear engine compartment area. The operator safely evacuated passengers and emergency responders arrived quickly to suppress the fire. No injuries or fatalities occurred. A third-party fire investigation was conducted by Halsey King & Associates. Based on the preliminary findings, the fire is believed to have originated from a catastrophic failure of the Thermo King A/C compressor clutch bearing assembly. The bearing reportedly overheated, seized, and caused the compressor belt to ignite while still being driven by the engine. The investigation identified evidence consistent with: •A seized A/C compressor clutch bearing •Extreme heat generation within the clutch assembly •Belt ignition and progression of fire through engine compartment components At this time, our maintenance records do not indicate any previously documented defects associated with this specific Thermo King assembly prior to the incident. Our fleet currently has inspection and preventive maintenance procedures in place related to belt alignment, pulley alignment, belt tension, clutch air gap measurement, and related A/C system inspections. We are providing this notification for awareness, documentation, and any further review deemed appropriate. Please let us know if additional information, photographs, maintenance records, or investigative documentation are required. Respectfully, [XXX] Assistant General Manager / Maintenance Director Greensboro Transit Agency RATP Dev USA [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11738944 · filed May 20, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .