AutoStatsIQ
Data through Oct 2026
Model yearPark outside

2021 NEW Flyer XE35

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

Recalls (8)Complaints (0)Investigations (0)Bulletins (26)
Recall campaigns covering this model year811k 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 XE35 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.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

8 recall campaigns cover the 2021 NEW Flyer XE35

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 XE35
CampaignFiledSubjectComponentVehiclesRemedy
26V-151Mar 13, 2026Inverter software error may cause unintended acceleration or deceleration in certain conditionsElectrical system1,196Software update
25V-898Dec 19, 2025Antilock braking (ABS) and electronic stability control (ESC) module may lose communication and fail without illuminating the warning lightsStability and traction control6,673Software update
25V-631Sep 19, 2025High voltage battery may experience a short circuit within the battery module when charging to near or full capacityPark outsideElectrical system655Part replacement
25V-566Aug 29, 2025Inadequate weld on the high voltage battery busbar and incorrect software may cause the battery module to overheatElectrical system1,170Software update
24V-056Jan 31, 2024One or more drain valves may not activate as intended, which could allow battery packs to accumulate liquid in the battery pack enclosureElectrical system337Not stated
23V-897Dec 22, 2023Due to a software error, unintended acceleration may occur during certain conditionsSpeed control246Software update
23V-083Feb 15, 2023One or more battery packs may accumulate liquid in the battery pack enclosureElectrical system219Repair or modification
21V-244Apr 7, 2021Firmware errors in the inverters may cause the electric drive system to shutdownElectrical system227Software update
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 NEW Flyer XE35

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

    26 manufacturer communications cover this model year

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

    • ITS61988 Sep 15, 2026 · Service Bulletin/Repair Instructions
      Instruction to program for the addition of ESS cell minimum and maximum voltages and ESS charge current per customer request
    • ITS61795 Sep 9, 2026 · Service Bulletin/Repair Instructions
      Instructions to inspect flooring for ridge/raised area, pull back flooring, add screws and re-apply flooring in between front luggage racks.
    • 251030 Battery email Oct 31, 2025 · Other
      A consumer notification indicating one of New Flyer's battery suppliers is exiting the market.
    • TSIB 25-07 Aug 21, 2025 · Service Bulletin/Repair Instructions
      This Bulletin is being issued due to New Flyer & MCI have received reports that customers are re-torquing high-voltage (HV) connections during preventative maintenance inspections as outlined in the Preventive Maintenance section of the Service or Maintenan…
    • ITS61281 Jul 7, 2025 · Service Bulletin/Repair Instructions
      Instructions to adjust certain cantilever mounted seats and adjust them to proper height.
    • TSIB 25-04 May 14, 2025 · Service Bulletin/Repair Instructions
      This Technical Service Information Bulletin has been issued to remind customers that fill pressure must not exceed 25 psi to avoid injury or damage components during filling and deaeration of the ESS Battery Thermal Management System.
    • ITS61268 Feb 14, 2025 · Service Bulletin/Repair Instructions
      Instruction to Service to update vehicles with ELFA 3 to provide improved BMS response to overcharging and other functional safety mechanisms, more robust detection of failure modes through DTCs, Battery Data Recorder (BDR) capabilities, and streamlined fla…
    • ITS61250 Feb 7, 2025 · Service Bulletin/Repair Instructions
      Instruction to Service for updating ESS drains, remove internal mechanism, re-install and add duckbill. Remove the ESS breather, extract the internal mechanism, remove the three desiccant bags and reinstall the breather. 6 string buses.
    • ITS61249 Feb 6, 2025 · Service Bulletin/Repair Instructions
      Instruction to Service for updating ESS drains, remove internal mechanism, re-install and add duckbill. Remove the ESS breather, extract the internal mechanism, remove the three desiccant bags and reinstall the breather. 5 string buses.
    • ITS61123 Aug 15, 2024 · Service Bulletin/Repair Instructions
      Instruction to Service for updating the battery program on certain ELFA3 buses for Improved BMS response to overcharging and other functional safety mechanisms, more robust detection of failure modes through DTCs, improving Battery Data Recorder (BDR) capab…
    • ITS60853 Nov 7, 2023 · Service Bulletin/Repair Instructions
      Instruction to Service 60853 to rework a ground cable for the DC link distribution box.
    • ITS-60815 Oct 19, 2023 · Service Bulletin/Repair Instructions
      Instructions to Service to install upgraded ESS drain valves - 5 string system.
    • ITS-60823 Oct 4, 2023 · Service Bulletin/Repair Instructions
      Instruction to Service to enhance sealing of overhead charge cables.
    • ITS60641 May 4, 2023 · Service Bulletin/Repair Instructions
      Instructions and PNs to install an improved Battery Thermal Management System fill decal.
    • ITS60618 Feb 16, 2023 · Service Bulletin/Repair Instructions
      Instructions to service for inspecting and correction of power bar clamp.
    • ITS60598 Jan 4, 2023 · Service Bulletin/Repair Instructions
      Some standard grade electric buses have experienced nuisance tripping of the motor inverter fuse. This ITS provides instructions to upgrade the fuse
    • ITS-60756 Dec 8, 2022 · Service Bulletin/Repair Instructions
      On certain buses, mounting rivnuts for securing the ESS and inverter rack may have insufficient crimping. ITS-60756 provides instructions for checking/correcting the rivnut crimping as required.
    • IST-60523 Oct 3, 2022 · Service Bulletin/Repair Instructions
      ITS was issued to correct the orientation of HV contactors. Incorrect orientation can lead to premature failure
    • TSIB 22-08 Sep 26, 2022 · Service Bulletin/Repair Instructions
      New Flyer has issued Technical Service Information Bulletin (TSIB) 22-08, providing for the application of silicone paste onto overhead charging rails to inhibit water from collecting on the rails
    • ITS60401 Jun 20, 2022 · Service Bulletin/Repair Instructions
      Technical Instruction describing how to tighten hardware and replace rivets on upper deck cantilever seats where required.
    • ITS60418 Mar 10, 2022 · Service Bulletin/Repair Instructions
      This technical instruction describes how to replace dust covers and seal and protect the harnesses associated with the Smart Rider suspension leveling system for buses with components only installed on the front axle.
    • ITS60417 Mar 10, 2022 · Service Bulletin/Repair Instructions
      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.
    • ITS60373 Feb 1, 2022 · Service Bulletin/Repair Instructions
      This Instruction to Service describes how to remove and repalce the circuit breaker for the Valeo coolant pump installed on specifically equipped buses.
    • ITS60289 Oct 5, 2021 · Service Bulletin/Repair Instructions
      This Instruction to Service descripes the procedure to retrofit the shims behind anti-sway bar mounting bushings.
    • ITS59239 May 6, 2021 · Service Bulletin/Repair Instructions
      This instruction to service describes how to inspect specifically equipped vehicles for SDS Window components and function, and how to rework these components if required. The "SDS Window" is a maintenance access panel designed to look like a side window.
    • ITS59216 May 3, 2021 · Service Bulletin/Repair Instructions
      This technical service instruction describes how to remove and replace SDS Window strike pins and remove additional seals if present. The "SDS Window" is a maintenance access panel designed to look like a side window.
    Source: NHTSA manufacturer communications files.
    About service bulletins