No complaints are listed for the 2021 NEW Flyer XD40. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as NEW FLYER XD40.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
6 recalls.
Date: 2025-12-19. Systems: ELECTRONIC STABILITY CONTROL (ESC), SERVICE BRAKES, AIR.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain XD35, XDE35, XE35, XN35, XD40, XDE40, XE40, XHE40, XN40, XT40, XD60, XDE60, XE60, XN60, XT60, and XHE60 transit buses. Please refer to New Flyer's recall report for specific model year information. The antilock braking (ABS) and electronic stability control (ESC) module may lose communication and fail without illuminating the warning ligh (excerpt)
Consequence: An ABS or ESC warning light that fails to illuminate will not alert the driver to the loss of ABS or ESC, increasing the risk of a crash. (excerpt)
Remedy: New Flyer will update the software, free of charge. Owner notification letters were mailed February 17, 2026. Owners may contact New Flyer's customer service at 1-800-241-2947. (excerpt)
Do not drive: No. Park outside: No.
Date: 2023-10-26. Systems: POWER TRAIN.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain 2019-2024 XD35, XD40, XN35, and XN40 transit buses. The transmission yoke may separate, resulting in driveshaft separation and a sudden loss of drive power.
Consequence: A sudden loss of drive power can increase the risk of a crash.
Remedy: New Flyer will work with the equipment manufacturer, Allison Transmission Inc., to inspect, and if necessary, tighten loose transmission yoke bolts, free of charge. Owner notification letters were mailed December 9, 2023. Owners may contact New Flyer customer service at 1-800-241-2947. New Flyer's number for this recall is R23-20.
Do not drive: No. Park outside: No.
Date: 2022-08-24. Systems: STEERING.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain 2021-2022 XD40, XD60, XDE40, 2022 XN35, XE40, XN40, and 2021 XN60 transit buses. The steering gears may have been incorrectly assembled, which can cause the gear to fracture.
Consequence: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the steering gear if required, free of charge. Owner notification letters were mailed on September 2, 2022. Owners may contact New Flyer's customer service at 1-204-224-6706. New Flyer's number for this recall is R22-026.
Do not drive: No. Park outside: No.
Date: 2021-07-28. Systems: FUEL SYSTEM, DIESEL.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain 2021 XD40 and XD35 vehicles equipped with Cummins L9 Diesel engines that have remote Stage 2 fuel filters and pressurized hoses. A fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: Cummins will replace the fuel hoses, free of charge. Owner notification letters were mailed on August 3, 2021. Owners may contact New Flyer's customer service at 1-204-224-6706.
Do not drive: No. Park outside: No.
Date: 2021-07-14. Systems: ENGINE AND ENGINE COOLING.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain 2021 XD35 and XD40 vehicles equipped with 2021 Model Year Cummins L9 Diesel Engines. The engine calibration software's management of the injection of Diesel Exhaust Fluid can allow excessive ammonia to be emitted from tailpipe exhaust.
Consequence: Exposure to high levels of ammonia can increase the risk of injury.
Remedy: Cummins will recalibrate the engine, free of charge. Owner notification letters were mailed on July 23, 2021. Owners may contact New Flyer's customer service at 1-800-204-224-6706. New Flyer's number for this recall is R21-013.
Do not drive: No. Park outside: No.
Date: 2021-05-18. Systems: FUEL SYSTEM, DIESEL.
Defect: New Flyer of America, Inc. (New Flyer) is recalling certain 2017-2021 XD40, XD35, 2016-2021 XD60, 2017 XDE35, 2016-2020 XDE40, XDE60 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: New Flyer will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 28, 2021. Owners may contact New Flyer customer service at 1-204-224-6706. New Flyer's number for this recall is R21-008.
Do not drive: No. Park outside: No.
Manufacturer communications
6 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 2 |
|---|
| EQUIPMENT | 2 |
|---|
| ENGINE | 1 |
|---|
| FUEL/PROPULSION SYSTEM | 1 |
|---|
| SEATS | 1 |
|---|
| STEERING | 1 |
|---|
| STRUCTURE | 1 |
|---|
11030373
Date: 2026-03-20. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, FUEL/PROPULSION SYSTEM.
Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 12inch DEF tank
11020706
Date: 2025-07-07. Type: Service Bulletin/Repair Instructions. Systems: SEATS.
Instructions to adjust certain cantilever mounted seats and adjust them to proper height.
11014018
Date: 2025-01-09. Type: Service Bulletin/Repair Instructions. Systems: STEERING.
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.
10246085
Date: 2023-11-03. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Instruction to Service 60838 to check/replace fuse box mounting hardware as required.
10208773
Date: 2022-02-01. Type: Service Bulletin/Repair Instructions. Systems: EQUIPMENT.
This Instruction to Service describes how to install a reminder decal for the SDS panel retaining lanyard on specifically equipped buses.
10201972
Date: 2021-08-31. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, EQUIPMENT, STRUCTURE.
Technical Instruction describing hos to remove, rework, and replace the stop request sign support bracket, to promote clearance for electrical wiring.