Model year

2021 NEW Flyer XD40

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (6)Complaints (0)Investigations (0)Bulletins (6)

Recall campaigns covering this model year613k vehicles or units across those campaigns

Owner complaints0Not enough peers on file

Severity indexNoneCrash, fire, injury or death per 100

First 24 months0Complaints in its first two years

Complaints over time

Complaints about the 2021 NEW Flyer XD40 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

No campaigns match these filters.Reset filters

Source: NHTSA ODI complaints file. The lighter column runs through October.

Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.

Recalls

6 recall campaigns cover the 2021 NEW Flyer XD40

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2021 NEW Flyer XD40
Campaign	Filed	Subject	Component	Vehicles	Remedy
25V-898	Dec 19, 2025	Antilock braking (ABS) and electronic stability control (ESC) module may lose communication and fail without illuminating the warning lights	Stability and traction control	6,673	Software update
23V-722	Oct 26, 2023	Transmission yoke may separate, resulting in driveshaft separation and a sudden loss of drive power	Powertrain	2,351	Repair or modification
22V-637	Aug 24, 2022	Steering gears may have been incorrectly assembled, which can cause the gear to fracture	Steering	55	Part replacement
21V-576	Jul 28, 2021	Fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head	Fuel system	30	Part replacement
21V-532	Jul 14, 2021	Engine calibration software's management of the injection of Diesel Exhaust Fluid can allow excessive ammonia to be emitted from tailpipe exhaust	Engine and cooling	28	Software update
21V-365	May 18, 2021	Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak	Fuel system	3,600	Part replacement

Source: NHTSA ODI recalls file.

Look up a VIN at NHTSA

Owner complaints

What owners reported about the 2021 NEW Flyer XD40

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.

0 complaints on file.

Source: NHTSA ODI complaints file.

Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.

All investigations

Service bulletins

6 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

ITS61086 Mar 20, 2026 · Service Bulletin/Repair Instructions
Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 12inch DEF tank
ITS61281 Jul 7, 2025 · Service Bulletin/Repair Instructions
Instructions to adjust certain cantilever mounted seats and adjust them to proper height.
ITS61148 Jan 9, 2025 · Service Bulletin/Repair Instructions
Instruction to Service to check the four mounting bolts that attach the steering box mounting bracket to the frame of the bus to ensure they are torqued to the correct value.
ITS60838 Nov 3, 2023 · Service Bulletin/Repair Instructions
Instruction to Service 60838 to check/replace fuse box mounting hardware as required.
ITS60381 Feb 1, 2022 · Service Bulletin/Repair Instructions
This Instruction to Service describes how to install a reminder decal for the SDS panel retaining lanyard on specifically equipped buses.
ITS59303 Aug 31, 2021 · Service Bulletin/Repair Instructions
Technical Instruction describing hos to remove, rework, and replace the stop request sign support bracket, to promote clearance for electrical wiring.

Source: NHTSA manufacturer communications files.

About service bulletins