Recall 24V174 affects 36 2022-2023 Nova Bus Lfs buses for a battery disconnect switch defect. Repair is free at any franchised Nova Bus dealer.
Nova Bus is recalling 36 2022-2023 Lfs buses because missing electrical components can keep the battery disconnect switch from working. An inoperative switch raises the risk of electrical shock and injury during maintenance or repair work, and Nova Bus dealers will complete the recall repair free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The battery disconnect switch on a 2022-2023 Nova Bus Lfs bus is the main electrical shutoff for battery power. It is supposed to isolate the battery from the rest of the bus electrical system, so power can be shut down during service or another situation that requires the bus to be de-energized.
On affected buses, required electrical connections for that switch option were left out because incorrect parameters were selected during the order and build configuration process. The switch can be installed on the bus but not have the wiring it needs to do its job. When someone uses the battery disconnect switch, the battery power does not shut off as expected.
There is no warning sign before failure. An owner or technician would learn about the problem when the battery disconnect switch is used and does not disconnect battery power.
Who's affected?
Covers the 2022 and 2023 Lfs model years for buses with the battery disconnect switch option.
| 2023 Nova Bus Lfs | wiring |
|---|---|
| 2022 Nova Bus Lfs | wiring |
| Units affected | 36 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
The battery disconnect switch can stay inoperative, which raises the risk of electrical shock and injury during maintenance or repair work. There is no warning sign before the problem occurs. If your VIN is included, have the bus serviced soon and tell maintenance staff about the recall before work begins. Repair is free at any franchised Nova Bus dealer.
What should I do?
- Check your VIN to confirm your 2022-2023 Nova Bus Lfs is included in this recall.
- Contact a franchised Nova Bus dealer to schedule the free additional-wiring and relay repair that restores battery disconnect switch operation.
- Bring the recall notice if you have it. If not, reference recall number 24V174 when you call.
- Call Nova Bus customer service at 1-800-350-6682 with questions about recall number 24V174.
- Treat the battery disconnect switch as unreliable during maintenance until the repair is complete.
What happens at the repair
At the dealer, a Nova Bus technician installs the additional wiring and relay needed for the battery disconnect switch. The recall repair is free, and parts and labor are covered. If you have already paid out of pocket for a repair related to the missing battery disconnect switch wiring or relay, Nova Bus's standard reimbursement plan covers documented expenses. Bring the repair paperwork to the service desk so the claim can be reviewed under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| March 4, 2024 | NHTSA published the recall |
|---|---|
| March 7, 2024 | Dealer notification began |
| March 7, 2024 | Dealer notification ended |
| May 3, 2024 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| May 3, 2024 | Interim owner notification (was planned for this date) |
| May 15, 2024 | Owner notification mailed |
Frequently asked questions
What is recall 24V174?
Recall 24V174 covers 36 2022-2023 Nova Bus Lfs vehicles with missing electrical components that prevent the battery disconnect switch from functioning. Nova Bus will install additional wiring and a relay for free.
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 24V174. If it is, contact Nova Bus customer service at 1-800-350-6682 or your Nova Bus service contact to schedule the wiring and relay installation. Reference Nova Bus recall CR5566 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Nova Bus will install the additional wiring and relay free of charge for vehicles included in recall 24V174.
What is the safety risk?
The safety risk is electrical shock and injury during maintenance or repair work. If the battery disconnect switch does not function, technicians working on the electrical system lose a key isolation step. Tell maintenance staff about recall 24V174 before service work begins.
When were owners notified about recall 24V174?
Nova Bus mailed owner letters on May 15, 2024. If you manage or own a 2022-2023 Nova Bus Lfs and never received a letter, check your VIN and reference recall CR5566 when contacting Nova Bus customer service.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V174000 |
|---|---|
| Nova Bus customer service | 1-800-350-6682 |
| NHTSA recall # | 24V174 |
| NHTSA recall # (full) | 24V174000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Document (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →