Nova Bus (US) Inc.: Engine and Engine Cooling › Cooling System › Pump
Nova Bus (US) Inc. reported this defect to federal regulators on Nov 28, 2025 and put the number of vehicles at risk at 8. The repair is free for as long as the recall stands.
The defect
Nova Bus (US) Inc. (Nova Bus) is recalling certain 2021 and 2024-2025 LFS transit buses. The impeller shaft may be loose, causing the cooling pump to fail.
The risk
A cooling pump failure can cause a loss of drive power, increasing the risk of a crash.
The remedy
Nova Bus will inspect and replace the pump as necessary, free of charge. Owner notification letters were mailed February 3, 2026.Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus' number for this recall is CR5803. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 27, 2026.
3 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2025 Nova Bus LFS | 0 | 5 | 0 | 0 |
| 2024 Nova Bus LFS | 0 | 14 | 0 | 0 |
| 2021 Nova Bus LFS | 0 | 23 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 25V822000.
Full record for the 2025 Nova Bus LFS → · Recalls carrying a do-not-drive advisory → · Where this data comes from →