Recall 22V172 covers 1 Marion Body Works-modified 2018 International SR525 emergency vehicle for unintended movement. Free ECM update through Marion Body Works.
Marion Body Works is recalling one 2018 International SR525 emergency vehicle under recall 22V172 because the stationary PTO can raise engine RPM while the parking brake is set and the transmission is in Drive or Reverse. The vehicle can move unintentionally and increase crash risk, and an International dealer will complete the free repair.
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What's wrong?
The engine control module software on the 2018 Marion Body Works International SR525 controls how the engine responds to driver and equipment commands. This vehicle uses a power takeoff, or PTO, to let the engine run equipment while the truck is stopped. A PTO neutral interlock is supposed to keep that engine-speed command from working unless the transmission is in neutral.
On affected vehicles with feature codes 12VXT or 12VXU, the software calibration did not have that neutral interlock enabled. If the parking brake is set, the transmission is left in Drive or Reverse, and the stationary PTO switch is engaged, the engine speed rises while the vehicle is still in gear. That extra engine force can overpower the parking brake and let the vehicle move.
There is no warning sign before failure. The issue is in the calibration, so an owner has no light, sound, smell, or pedal feel to watch for before the vehicle moves.
Who's affected?
| 2018 Marion Body Works International SR525 | Engine |
|---|---|
| Units affected | 1 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2018 Marion Body Works International SR525 is on the list. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Unintended vehicle movement increases the risk of a crash because the vehicle can move when the driver does not expect it. There is no warning sign before the movement. If your VIN is included, schedule the repair soon and use extra care around the vehicle. Repair is free at any franchised International dealer.
What should I do?
- Check your VIN to confirm your 2018 Marion Body Works International SR525 is included in this recall.
- Contact a franchised International dealer to schedule the free ECM software update that enables the PTO neutral interlock and addresses unintended movement while the stationary PTO is engaged.
- Call Marion Body Works customer service at 1-715-754-5261 with questions, and reference recall number 22V172 and Marion Body Works recall 19V-841.
- Avoid using the stationary PTO with the transmission in Drive or Reverse until the update is complete.
- Bring any service paperwork when the International dealer performs the software update.
What happens at the repair
At the dealer, an International technician updates the Engine Control Module so the PTO neutral interlock is enabled. The software update and labor are free under recall 22V172. Navistar's standard reimbursement plan applies to documented repairs completed before notification. If an owner already paid for this PTO neutral interlock repair, contact Marion Body Works customer service and provide the prior repair paperwork for reimbursement instructions.
| Reimbursement | Reimbursement available |
|---|
Timeline
| March 22, 2022 | NHTSA published the recall |
|---|---|
| March 25, 2022 | Dealer notification began |
| March 25, 2022 | Dealer notification ended |
| March 25, 2022 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| March 25, 2022 | Interim owner notification (was planned for this date) |
| March 30, 2022 | Owner notification mailed |
Frequently asked questions
What is recall 22V172?
Recall 22V172 covers 1 2018 Marion Body Works International SR525 emergency vehicle with stationary PTO programming that lets engine speed rise while the transmission is in Drive or Reverse and the parking brake is set. Marion Body Works will update the Engine Control Module for free.
What should I do if my 2018 Marion Body Works International SR525 is on this recall?
Check your VIN to confirm the emergency vehicle is included in recall 22V172. If it is, contact Marion Body Works customer service at 1-715-754-5261 or the International service location handling the vehicle, and ask for the Engine Control Module update. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Marion Body Works will update the Engine Control Module to enable the PTO neutral interlock free of charge.
What is the safety risk in recall 22V172?
The safety risk is unintended vehicle movement. With the parking brake applied, the transmission in Drive or Reverse, and the stationary PTO switch engaged, engine speed can rise enough to overcome the parking brake. That increases crash risk.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V172000 |
|---|---|
| Marion Body Works customer service | 1-715-754-5261 |
| NHTSA recall # | 22V172 |
| NHTSA recall # (full) | 22V172000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Report (PDF)
- Download Misc. Document (PDF)
- Download Owner Notification Letter (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 →