Recall 22V548 affects 184 2019-2022 Gillig Low Floor buses for a battery coolant leak and fire risk. Free franchised Gillig dealer repair once available.
Gillig is recalling 184 2019-2022 Low Floor vehicles equipped with Cummins BP74E battery packs because coolant can leak inside the pack and short circuit the battery. The short circuit raises the risk of a fire, and the dealer repair will be free once Gillig makes it available.
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 pack on 2019-2022 Gillig Low Floor buses is the high-voltage battery for electric propulsion. It stores energy and sends power to the traction system that moves the bus. Coolant flows through the pack to control temperature, so the pack depends on sealed fittings and properly clamped joints.
On affected buses, coolant leaks inside the battery pack. The leak starts from a loose coolant outlet connector or from a bolted joint inside the pack that was not loaded correctly. Once coolant reaches places it should not reach, it can create an electrical short circuit inside the pack.
An operator has a warning sign before the fault progresses. The leaking coolant sets an isolation fault and displays a High Voltage Exposure lamp on the dashboard while the bus is operating. That warning means the high-voltage battery pack needs recall service, including corrected coolant fitting torque and replacement of the standard coolant with low-conductivity coolant.
Who's affected?
Covers Low Floor buses from 2019 through 2022, all using the same high-voltage traction battery.
| 2022 Gillig Low Floor | high-voltage traction battery |
|---|---|
| 2020 Gillig Low Floor | high-voltage traction battery |
| 2019 Gillig Low Floor | high-voltage traction battery |
| 2021 Gillig Low Floor | high-voltage traction battery |
| Units affected | 184 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
A battery short circuit increases the risk of a fire. If leaking coolant triggers an isolation fault, the High Voltage Exposure lamp displays on the dashboard while the vehicle is in operation. Treat that warning as a reason to stop using the vehicle and contact Gillig. Repair will be free at any franchised Gillig dealer once available.
What should I do?
- Check your VIN to confirm your 2019-2022 Gillig Low Floor is included in this recall.
- Contact Gillig customer service to ask for current repair timing before taking the bus in.
- Ask Gillig about the free coolant-fitting repair that tightens the fittings and replaces coolant to address the traction-battery coolant leak.
- Reference recall number 22V548 when you call or schedule service.
- Keep the bus out of service if a coolant leak is found, then contact Gillig before moving it.
What happens at the repair
At the dealer, a Gillig technician will tighten the coolant fittings and replace the coolant in the affected battery pack cooling system. Because this campaign is still listed as under development, the final dealer repair will be free once available. Parts and labor are covered under the recall. Repairs paid before the recall notice are handled through the manufacturer's limited warranty, not through a separate reimbursement program. Ask the service desk how that warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| July 28, 2022 | NHTSA published the recall |
|---|---|
| August 16, 2022 | Owner notification mailed |
| September 27, 2022 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| September 27, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V548?
Recall 22V548 covers 184 2019-2022 Gillig Low Floor vehicles equipped with Cummins BP74E battery packs. Internal coolant leaks in the battery pack can cause a short circuit, increasing fire risk. Gillig will tighten the coolant fittings and replace the coolant free of charge.
What should I do if my 2019-2022 Gillig Low Floor is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 22V548. If it is, contact Gillig service and reference recall 22V548 when you call. Gillig's listed customer service number is 1-510-264-5073, and the coolant fitting and coolant repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Gillig will tighten the coolant fittings and replace the coolant free of charge. Ask Gillig service to confirm the repair procedure tied to recall 22V548 before the vehicle is brought in.
What is the safety risk?
The safety risk is fire. The Cummins BP74E battery pack can develop an internal coolant leak, and that leak can cause the battery pack to short circuit. If your VIN is included, arrange the free Gillig repair before keeping the vehicle in regular service.
When were owners notified about recall 22V548?
Gillig mailed owner notification letters on August 16, 2022. If you bought the vehicle used or never received the letter, check your VIN to confirm whether your specific Low Floor vehicle is included, then call Gillig service with recall number 22V548.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V548000 |
|---|---|
| Gillig customer service | 1-510-264-5073 |
| NHTSA recall # | 22V548 |
| NHTSA recall # (full) | 22V548000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (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 →