Recall 25V184 affects 24 2022-2023 Nova Bus Lfs buses for loose battery hardware that can short circuit. Free battery replacement once Nova Bus opens it.
Nova Bus is recalling 24 2022-2023 Lfs transit buses because loose high voltage battery hardware can fall inside the battery pack and create a short circuit. That short circuit increases the risk of a fire, and the Nova Bus dealer repair will be free once the company opens the final remedy.
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What's wrong?
The high voltage battery pack on a 2022-2023 Nova Bus Lfs transit bus stores the electrical energy used by the propulsion system. It sends power to the drive system through controlled electrical connections, so the pack has to keep its internal parts secured and isolated from one another.
On affected buses, loose hardware inside the BorgWarner Akasol Gen3 battery pack can fall into the pack. That loose metal can bridge electrical points that are supposed to stay separated, creating a short circuit. Nova Bus traced the defect to inadequate manufacturing process controls at BorgWarner Akasol.
There is no warning sign before failure. An operator or maintenance team should not expect a warning light, noise, smell, or change in drivability before the short circuit occurs.
Who's affected?
The same high-voltage traction battery component is listed for both model years.
| 2022 Nova Bus Lfs | high-voltage traction battery |
|---|---|
| 2023 Nova Bus Lfs | high-voltage traction battery |
| Units affected | 24 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific bus.
What's the safety risk?
A short circuit increases the risk of a fire. There is no warning sign before it happens, so confirm whether the bus is included and follow Nova Bus interim instructions until the battery replacement is available. Repair will be free at any franchised Nova Bus dealer once Nova Bus opens it.
What should I do?
- Check your VIN to confirm your 2022-2023 Nova Bus Lfs is included in this recall.
- Wait for Nova Bus's second owner letter before scheduling the free high-voltage battery replacement that removes the loose-hardware short-circuit risk.
- Contact Nova Bus customer service at 800-350-6682 and reference recall number 25V184 if you need fleet guidance before the remedy opens.
- Ask Nova Bus customer service whether any interim charging, parking, or service limits apply to your bus until the battery replacement is available.
- Keep the recall notice with the bus records so the dealer or service contact has the campaign details ready.
What happens at the repair
Nova Bus has mailed the first owner notice and will send a second letter once the remedy is available. The final dealer repair is not open yet. Once it opens, a Nova Bus technician will replace the high voltage batteries, free under the recall. Parts and labor are covered. Until that final repair opens, use the notice language when calling Nova Bus customer service and ask whether the bus has any current handling instructions tied to recall 25V184.
Timeline
| March 28, 2025 | Dealer notification began |
|---|---|
| March 28, 2025 | Dealer notification ended |
| April 3, 2025 | NHTSA published the recall |
| June 5, 2025 | Owner notification mailed |
Frequently asked questions
What is recall 25V184?
Recall 25V184 covers 24 2022-2023 Nova Bus Lfs transit buses with high-voltage battery hardware that can come loose inside the battery pack. Loose hardware can create a short circuit, which increases the risk of a fire. Nova Bus will replace the batteries for free once the remedy is available.
What should I do if my 2022-2023 Nova Bus Lfs is on this recall?
Check your VIN to confirm your specific bus is included in recall 25V184. If it is, contact Nova Bus customer service at 800-350-6682 and reference recall number CR5687. The final battery replacement is free, but Nova Bus says a second letter will be sent once the remedy is available.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Nova Bus will replace the batteries free of charge. Since the recall is still in interim status, ask Nova Bus when the final battery replacement opens for your bus.
What is the safety risk?
The risk is fire from a battery short circuit. Nova Bus says loose high-voltage battery hardware can fall inside the battery pack and create that short. Until the final remedy opens, confirm whether your VIN is included and ask Nova Bus for current handling instructions.
When will Nova Bus notify owners?
Nova Bus mailed owner letters on June 5, 2025. The company says a second letter will be sent once the battery replacement remedy is available. If your bus changed owners or operators, check your VIN and contact Nova Bus so the service path is clear.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V184000 |
|---|---|
| Nova Bus customer service | 800-350-6682 |
| NHTSA recall # | 25V184 |
| NHTSA recall # (full) | 25V184000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →