Recall 11V601 affects 3 2011 Rosa Trailers for slack adjuster housings that can break. Repair is free at any franchised Rosa dealer.
Rosa is recalling 3 2011 Rosa Trailers equipped with Gunite automatic slack adjusters because the slack adjuster housing can break under normal operating loads. If it breaks, that wheel brake no longer functions, braking capacity drops, and on a steer axle the trailer can pull to one side; the dealer repair will be free once available.
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What's wrong?
The automatic slack adjuster is part of the air brake system on 2011 Rosa Trailers. It keeps the brake linkage adjusted as the brake linings wear, so the air brake pushrod travel stays in the proper range and the brakes apply with the intended force.
On the trailers in recall 11V601, the Gunite slack adjuster housing has inadequate structural strength. The problem comes from incomplete bonding of the iron during casting, which means the metal housing did not form with the strength it was designed to have. Under normal operating loads, the housing can break at the handle.
If the housing breaks, the slack adjuster can no longer hold or control the brake adjustment the way it should. There is no warning sign before failure.
Who's affected?
| 2011 Rosa Rosa Trailers | brake system |
|---|---|
| Units affected | 3 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
If the slack adjuster housing breaks, the wheel brake attached to it stops working. That reduces braking capacity and, on a steer axle, can make the vehicle pull to one side, increasing crash risk. Schedule the repair soon and drive cautiously until it is complete. Repair will be free at any franchised Rosa dealer once available.
What should I do?
- Check your VIN to confirm your 2011 Rosa Trailers is included in this recall.
- Use Rosa's owner notice, mailed in 2012, before scheduling dealer work.
- Contact Rosa at 1-715-478-3435 and reference recall number 11V601 when you call.
- Ask about the free slack-adjuster replacement that restores proper air-brake function.
- Drive cautiously until the repair is complete, and leave extra stopping distance.
What happens at the repair
At the dealer, a Rosa technician replaces the Gunite automatic slack adjusters covered by campaign 11V601. The repair focuses on the slack adjuster housing, the part identified for replacement after the housing can break at the handle under normal operating loads. The recall notice says Rosa began the safety recall in mid-February 2012, and the replacement is free of charge. If a dealer says parts or scheduling are not open for your trailer, ask Rosa for the current repair path before paying for this work.
Timeline
| December 28, 2011 | NHTSA published the recall |
|---|---|
| February 15, 2012 | Owner notification mailed |
Frequently asked questions
What is recall 11V601?
Recall 11V601 covers 3 2011 Rosa Rosa Trailers equipped with Gunite automatic slack adjusters. The slack adjuster housing can break at the handle under normal operating loads, leaving that wheel brake without function. Rosa dealers replace the slack adjusters for free.
What should I do if my 2011 Rosa Rosa Trailers is on this recall?
Check your VIN to confirm your specific trailer is included in recall 11V601. If it is, contact a Rosa dealer to schedule slack adjuster replacement. Reference recall number 11V601 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost to owners. Rosa dealers replace the affected slack adjusters free of charge, including parts and labor.
What is the safety risk?
A broken slack adjuster housing leaves the attached wheel brake inoperative, reducing braking capacity. If the affected brake is on the steer axle, the vehicle can pull to one side and increase crash risk. Have the slack adjusters replaced before regular use.
What if I bought this trailer used?
The free recall repair still applies. Recall coverage follows the VIN, not the first owner. Check your VIN, then call a Rosa dealer and reference recall number 11V601 so the service desk can confirm the trailer and repair path.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/11V601000 |
|---|---|
| Rosa customer service | 1-715-478-3435 |
| NHTSA recall # | 11V601 |
| NHTSA recall # (full) | 11V601000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →