Recall 23V366 affects 2 2022-2023 Marion Body Works Spartan Fire Metrostar and Spartan Fire Gladiator fire trucks for TCM software. Repair is free.
Marion Body Works is recalling 2 2022-2023 Spartan Fire Metrostar and Spartan Fire Gladiator emergency vehicles because the transmission control module can miss the 4th gear lockup needed to start the water pump after reversing. A fire truck that cannot pump water raises the risk of injury during a fire, and Marion Body Works dealers will complete the repair free of charge.
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What's wrong?
The transmission control module, or TCM, is the computer that tells the automatic transmission when and how to shift. On the 2022-2023 Marion Body Works Spartan Fire Metrostar and Spartan Fire Gladiator emergency vehicles in this recall, the GEN 6 TCM with C224 software also has to reach 4th gear lockup before the water pump initiates.
The problem starts after the vehicle is reversed. The TCM software has an oversensitive refresh rate for the driveline sensor, so the transmission fails to engage the 4th gear lockup the pump sequence needs. The component itself is the same, but the affected module needs updated software so the transmission and pump command work correctly.
There is no warning sign before failure. The crew would find the issue when the water pump does not initiate after the vehicle has been backed up.
Who's affected?
Spans the Spartan Fire Metrostar and Spartan Fire Gladiator across the 2022 and 2023 model years, both with the same automatic transmission control module.
| 2023 Marion Body Works Spartan Fire Metrostar | automatic transmission |
|---|---|
| 2022 Marion Body Works Spartan Fire Gladiator | automatic transmission |
| Units affected | 2 |
| 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 truck is included.
What's the safety risk?
If the transmission control module failure prevents the fire truck from pumping water, crews lose the water supply they need during a fire, increasing the risk of injury. The failure has no warning sign, so confirm affected vehicles by VIN and schedule the software update soon. Repair is free at any franchised Marion Body Works dealer.
What should I do?
- Check your VIN to confirm your 2022-2023 Marion Body Works Spartan Fire Metrostar or Spartan Fire Gladiator is included in this recall.
- Contact a franchised Marion Body Works dealer to schedule the free TCM software update that restores the transmission lockup needed for water-pump operation.
- Bring the recall notice if Marion Body Works mailed one. If not, reference recall number 23V366 when you call.
- Keep the emergency vehicle out of fire-response service until the TCM software update is complete.
- Call Marion Body Works customer service at 1-715-754-5261 with questions about scheduling or vehicle status.
What happens at the repair
At the dealer, a Marion Body Works technician updates the transmission control module software. The update is meant to restore the 4th gear lockup sequence needed before the water pump starts after the vehicle has been reversed. The recall repair is free, and parts and labor are covered now. Marion Body Works has a general reimbursement plan on file for documented prior repairs. If you paid for a related TCM software repair, bring receipts or repair invoices to the service desk.
| Reimbursement | Reimbursement available |
|---|
Timeline
| May 30, 2023 | Owner notification mailed |
|---|---|
| May 30, 2023 | Dealer notification began |
| May 30, 2023 | Dealer notification ended |
| May 30, 2023 | Interim owner notification (was planned for this date) |
| May 31, 2023 | NHTSA published the recall |
Frequently asked questions
What is recall 23V366?
Recall 23V366 covers 2 2022-2023 Marion Body Works Spartan Fire Metrostar and Spartan Fire Gladiator emergency vehicles. After reversing, the transmission control module can fail to reach the 4th gear lockup needed to start the water pump. Dealers will update the TCM software for free.
What should I do if my 2022-2023 Marion Body Works Spartan Fire Metrostar or Spartan Fire Gladiator is on this recall?
Check your VIN to confirm your specific emergency vehicle is included in recall 23V366. If it is, contact a Marion Body Works dealer or Marion customer service at 1-715-754-5261 to schedule the TCM software update. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. For recall 23V366, dealers will update the transmission control module software free of charge for included Marion Body Works emergency vehicles.
What is the safety risk?
The safety risk is loss of water-pump operation during a fire response. If the affected fire truck cannot pump water, that increases the risk of injury during a fire. The free dealer repair updates the TCM software so the pump can initiate correctly.
When were owners notified about recall 23V366?
Owner notification letters were mailed May 30, 2023. If your department or agency did not receive a letter, check your VIN and reference recall 23V366 when calling Marion Body Works customer service or the dealer service desk.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V366000 |
|---|---|
| Marion Body Works customer service | 1-715-754-5261 |
| NHTSA recall # | 23V366 |
| NHTSA recall # (full) | 23V366000 |
Source documents
-
Download Quarterly Report (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 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →