Complaints over time
Complaints about the 2021 NEW Flyer Xcelsior by year filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2021 NEW Flyer Xcelsior
Bus, cng, built in United States. Owner complaints on file from Sep 14, 2026 to Sep 14, 2026.
Recall campaigns covering this model year12,354 vehicles or units across those campaigns
Owner complaints1Not enough peers on file
Severity index0.02021 buss average 0.0
First 24 months0Complaints in its first two years
Components
100% of complaints about the 2021 NEW Flyer Xcelsior name structure
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
One recall campaign covers the 2021 NEW Flyer Xcelsior
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 25V-542 | Aug 22, 2025 | Buses may have been built without enough emergency exits or the exits may be in an incorrect location | Structure | 2,354 | Not stated |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2021 NEW Flyer Xcelsior
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
1 complaint on file, page 1 of 1.
- Filed Sep 14, 2026Failure Sep 14, 2026Cleveland, OHStructure
The contact reporting a 2021 New Flyer Xcelsior. The contact stated that the CNG fuel tank prop rods located in a compartment on the roof of the transit bus caused damages to the fuel tanks from road vibrations. The contact was concerned that the failure might cause an injury or a fire. The contact stated that the failure was present on sixteen other buses within the fleet, and some of the tanks were sent to be repaired. The cause of the failures were not yet determined. The manufacturer was notified of the failures.
NHTSA complaint 11764151
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
7 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.
- TSIB 26-08 Aug 14, 2026 · Service Bulletin/Repair Instructions
This bulletin introduces new improved banjo bolts for buses equipped with a Haldex tandem air dryers. The updated banjo bolts feature enhanced corrosion resistance and are designed to replace the current banjo bolts to help minimize corrosion-related issue… - TSIB 26-06 May 1, 2026 · Service Bulletin/Repair Instructions
Bulletin to follow when replacing LV batteries on buses equipped with certain Vanner battery equalizers. - TSIB 22-07 Sep 1, 2022 · Service Bulletin/Repair Instructions
This Technical Service Information Bulletin (TSIB) - New Flyer has developed several maintenance updates for Xcelsior buses specifically equipped with the optional Powerex electric air compressors. This TSIB introduces field modifications in order to simpli… - SMB194 May 10, 2021 · Service Bulletin/Repair Instructions
This service manual bulletin is an update to the 6,000 mile Preventative Maintenance inspection and lubrication requirements for the front stabilizer bar on all Xcelsior model buses. - TSIB 21-03 Apr 23, 2021 · Service Bulletin/Repair Instructions
Technical Service Information Bulletin revising the lubrication schedule for the scroll bearing on specifically equipped vehicles with the Powerex direct drive electric air compressor. - TSIB 21-02 Apr 19, 2021 · Service Bulletin/Repair Instructions
Technical Services Information Bulletin describing how to inspect specifically equipped vehicles, for possible pinch points on the Modine radiator fan harness routing. - SMB195 Apr 12, 2021 · Service Bulletin/Repair Instructions
This Service Manual Bulletin provides additional information regarding the 6,000 mile Preventative Maintenance requirements for the low voltage battery system.
Source: NHTSA manufacturer communications files.