Recall 24V604 affects 5 2023-2024 Rosenbauer Commander fire trucks for brittle lower-control-arm bolts. Repair will be free at any franchised Rosenbauer dealer once available.
Rosenbauer is recalling 5 2023-2024 Commander fire trucks under recall 24V604 because lower control arm retention bolts in certain independent front suspension assemblies can become brittle and break after tightening. A broken bolt head can become a projectile and increase the risk of injury; the Rosenbauer dealer repair will be free once available.
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What's wrong?
The independent front suspension on 2023-2024 Rosenbauer Commander fire trucks lets the front wheels move and steer while carrying the truck's weight. The lower control arm is one of the main links in that suspension, and its retention bolts hold the arm in its fixed mounting position. Those bolts have to stay clamped under heavy steering, braking, and road loads.
On affected trucks, certain bolts marked "HK" had their original coating stripped and were replated with zinc. Reyco Granning traced that process to hydrogen embrittlement, a condition that makes steel brittle from trapped hydrogen. After tightening, a brittle bolt can break, and defective hardware can pop off with force. Rosenbauer says the recall replaces suspect HK fasteners with L9 fasteners made through the standard process.
There is no warning sign before failure. Rosenbauer reported no in-service incidents or warranty claims when it reviewed the issue, so owners should not expect noise, looseness, or a dashboard alert before a bolt breaks.
Who's affected?
Covers the 2023 and 2024 Commander model years with the same lower control arm component.
| 2024 Rosenbauer Commander | lower control arm |
|---|---|
| 2023 Rosenbauer Commander | lower control arm |
| Units affected | 5 |
| 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 truck is included.
What's the safety risk?
A broken bolt head can become a projectile and increase the risk of injury. There is no warning before the bolt head breaks, so keep distance from the affected area and arrange inspection soon. Repair will be free at any franchised Rosenbauer dealer once available.
What should I do?
- Check your VIN to confirm your 2023-2024 Rosenbauer Commander is included in this recall.
- Wait for Rosenbauer's repair instructions before scheduling the final dealer visit; the dealer repair will be free once it opens.
- Contact a franchised Rosenbauer dealer after the remedy opens to schedule the lower-control-arm bolt inspection and replacement that addresses brittle bolts that can break and become projectiles.
- Reference recall number 24V604 when you call Rosenbauer customer service or the dealer.
- Keep people clear of the front suspension area until the inspection is complete.
What happens at the repair
The final dealer repair is still listed as under development, so do not assume the bolt repair can be scheduled until Rosenbauer opens the remedy. Once available, a Rosenbauer technician will inspect the lower control arm retention bolts in the independent front suspension and replace any bolts that fail inspection. Parts and labor are covered under the recall, and the dealer repair will be free once it opens.
Timeline
| August 13, 2024 | NHTSA published the recall |
|---|---|
| September 16, 2024 | Owner notification mailed |
| September 16, 2024 | Dealer notification began |
| September 16, 2024 | Interim owner notification (was planned for this date) |
| October 12, 2024 | Dealer notification ended |
Frequently asked questions
What is recall 24V604?
Recall 24V604 covers 5 2023-2024 Rosenbauer Commander fire trucks with independent front suspension assemblies. The lower control arm retention bolts can become brittle and break after tightening. A broken bolt head can become a projectile, creating an injury risk.
What should I do if my 2023-2024 Rosenbauer Commander is on this recall?
Check your VIN to confirm your specific fire truck is included in recall 24V604. If it is, contact a franchised Rosenbauer dealer or Rosenbauer customer service at 1-651-462-1000 and ask about the lower-control-arm bolt inspection and replacement.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to perform the recall remedy at no cost. Rosenbauer says dealers will inspect and replace the lower control arm retention bolts as necessary, free of charge.
What is the safety risk in recall 24V604?
The safety risk is injury from a broken bolt head. Rosenbauer reported that the lower control arm retention bolts can become brittle and break after tightening, and a broken bolt head can become a projectile.
When were owners notified about recall 24V604?
Rosenbauer mailed owner notification letters on September 16, 2024. If you manage a 2023-2024 Rosenbauer Commander and did not receive a letter, check your VIN and reference recall 24V604 when you contact Rosenbauer or the dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V604000 |
|---|---|
| Rosenbauer customer service | 1-651-462-1000 |
| NHTSA recall # | 24V604 |
| NHTSA recall # (full) | 24V604000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Document (PDF) (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 →