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Transport Canada recall 2021458

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

Campaign
Published byTransport Canada (Canada)
Campaign number2021458
Manufacturer's numberCR5154
Reported2021-07-27
ComponentEngine
Notification typeSafety Mfr
Units potentially affected56

What is wrong

Issue:

On certain buses, a programming problem could cause excess diesel exhaust fluid (DEF) to be injected into the exhaust after-treatment system. As a result, there could be a higher than normal amount of ammonia in the exhaust emissions.

Note: This recall only affects buses equipped with a Cummins 2021 model year L9 diesel engine.

Safety Risk:

Exposure to elevated levels of ammonia could create a risk of injury.

Corrective Actions:

Nova Bus will notify owners by mail and instruct you to take your bus to a Cummins authorized service center to update the software for the engine control module. To reduce the safety risk, Nova Bus and Cummins recommend that you should avoid running the engine in a confined space, such as a service bay, without the use of an exhaust extraction system.

Vehicles this campaign lists
2021 NOVA BUS LFS

A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.

Bulletins for the same vehicles and component

Bulletins for the same vehicles and component
BS5580E2024-04-30. Service bulletin. One fire suppression system pipe may be installed backwards and interfere with an alternator cable, creating friction that could damage one or both components.
FT55542024-03-04. Service bulletin. The Cabin Coolant Level Sensors for the LOW and HIGH levels are swapped.
BS5511E2023-12-22. Service bulletin. The EGR cooling hose N95062-48 is not rated for the engine compartment temperature. Under certain conditions the EGR cooling hose may crack and cause coolant leak.
LI5427E2023-12-22. Service bulletin. Improved durability of engine-side heat exchanger hoses.
BS5469E2023-12-22. Service bulletin. The belt guard hinge may crack.
FT54482023-11-01. Service bulletin. Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances might not be respecting to the drawing specifications.
BS5447E2023-11-01. Service bulletin. Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances are not respect to standard.
FT53612023-04-03. Service bulletin. Coolant pipe assy failing. The adaptor on the Coolant pipe assembly between the engine and circulation pump broke in service at the beginning of the copper thread.
BS5320ER12023-04-03. Service bulletin. Fire light coming on in the dash, Fire detection system
BS5380E2023-04-03. Service bulletin. Fire light coming on in the dash, Fire detection system.

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

Check one vehicle officially

Contains information licensed under the Open Government Licence – Canada.