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NHTSA Recall 21V532000: Manifold/header/muffler/tail pipe (engine and engine cooling)

New Flyer of America, Inc. reported this safety recall to NHTSA on , covering an estimated 28 vehicles. It affects 2 models including the New Flyer XD35.

28
vehicles potentially affected
2
models affected
2021
owners notified (July 23)
NHTSA campaign21V532000
Manufacturer campaignR21-013
ComponentENGINE AND ENGINE COOLING › EXHAUST SYSTEM › MANIFOLD/HEADER/MUFFLER/TAIL PIPE
Report receivedJuly 14, 2021
Owner notificationJuly 23, 2021
Initiated byManufacturer

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.

Safety risk

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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Vehicles covered by recall 21V532000

Make and modelModel years
New Flyer XD352021
New Flyer XD402021

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.