NEW FLYER XD40

FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

New Flyer of America, Inc. (New Flyer) is recalling certain 2023-2024 XDE60, 2024 XD35, XD40, and XD60 transit buses equipped with Cummins L9 diesel engines. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.

FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

New Flyer of America, Inc. (New Flyer) is recalling certain 2023 XD35, XD40, and XD60 vehicles equipped with certain Cummins L9 diesel engines. The remote fuel filter hoses may become separated from the fitting, which can result in a fuel leak and a lack of fuel supply to the engine.

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire. Additionally, a lack of fuel can cause an engine stall, increasing the risk of a crash.

POWER TRAIN:DRIVELINE:DRIVESHAFT

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.

Risk: A sudden loss of drive power can increase the risk of a crash.

EQUIPMENT:OTHER:LABELS

New Flyer of America, Inc. (New Flyer) is recalling certain 2021-2023 XD35, 2022-2023 XD40, XD60, XN35, XN60, 2022 XDE35, and 2021-2022 XE40 transit buses. The Gross Axle Weight Rating (GAWR) and Gross Vehicle Weight Rating (GVWR) listed on the certification labels are incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims - Other than Passenger Cars."

Risk: An overloaded vehicle can increase the risk of a crash.

VEHICLE SPEED CONTROL

New Flyer of America, Inc. (New Flyer) is recalling certain 2022-2023 XD35, XD40, XN35, XN40, and 2023 XD60, XE35, XE40, and XN60 transit buses. Due to a software error, unintended acceleration may occur during certain conditions.

Risk: Unintended acceleration can increase the risk of a crash.

STEERING

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.

Risk: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

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.

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.

FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL

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.

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

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.

Risk: Exposure to high levels of ammonia can increase the risk of injury.