Recall 11V474 covers 6,225 2011-2012 Freightliner trucks, chassis, and buses with V-band clamps that can release hot exhaust gases. Free Cummins dealer repair.
Freightliner is recalling 6,225 2011-2012 trucks and chassis, including the Business Class M2 and Coronado, because a V-band clamp T-bolt on the DOC/DPF exhaust assembly can fracture. If the clamp loosens, hot exhaust gases can vent before the tailpipe and raise fire risk; the dealer repair will be free once available.
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What's wrong?
The V-band clamp assembly on affected 2011-2012 Freightliner trucks holds the inlet and outlet cone sections to the diesel oxidation catalyst and diesel particulate filter. Those parts sit in the exhaust aftertreatment system, where they help clean diesel exhaust before it leaves the truck. The clamp keeps the cone sections tight against the DOC and DPF housing so the exhaust path stays connected.
The problem is in the T-bolt inside the clamp assembly. Under stress or load, that bolt can fracture and fail. Once the bolt breaks, the clamp loses the force that holds the connection together. The inlet or outlet cone section attached to the DOC and DPF housing can then loosen or disconnect from the housing.
There is no warning sign before failure. A driver is more likely to notice the problem only after the clamp has loosened, such as a changed exhaust sound, visible separation at the exhaust aftertreatment housing, or a loose clamp found during inspection.
Who's affected?
The scope spans truck, chassis, and bus lines, all tied to engine and engine cooling.
| 2011 Freightliner Coronado | Engine and engine cooling |
|---|---|
| 2012 Freightliner Coronado | Engine and engine cooling |
| 2012 Fccc Xcs | Engine and engine cooling |
| 2011 Thomas Built Buses Mvp-Ef | Engine and engine cooling |
| 2012 Freightliner Business Class M2 | Engine and engine cooling |
| 2012 Thomas Built Buses Mvp-Ef | Engine and engine cooling |
| 2011 Thomas Built Buses Saf-T-Liner Hdx | Engine and engine cooling |
| 2011 Fccc Xcr | Engine and engine cooling |
| 2012 Fccc Xcr | Engine and engine cooling |
| 2012 Fccc Xcm | Engine and engine cooling |
| 2011 Fccc Xcl | Engine and engine cooling |
| 2011 Fccc Xbs | Engine and engine cooling |
| 2012 Fccc Xbs | Engine and engine cooling |
| 2012 Fccc MT55 | Engine and engine cooling |
| 2011 Fccc MT45 | Engine and engine cooling |
| 2012 Fccc MT45 | Engine and engine cooling |
| 2011 Fccc Xcs | Engine and engine cooling |
| 2011 Freightliner Business Class M2 | Engine and engine cooling |
| 2012 Thomas Built Buses Saf-T-Liner Hdx | Engine and engine cooling |
| 2012 Fccc Mc | Engine and engine cooling |
| 2011 Fccc Mc | Engine and engine cooling |
| 2011 Fccc MT55 | Engine and engine cooling |
| 2012 Fccc S2 | Engine and engine cooling |
| 2011 Fccc S2 | Engine and engine cooling |
| 2012 Fccc Xbr | Engine and engine cooling |
| 2011 Fccc Xbr | Engine and engine cooling |
| 2012 Fccc Xcl | Engine and engine cooling |
| 2011 Fccc Xcm | Engine and engine cooling |
| Units affected | 6,225 |
A matching model year and model name do not confirm inclusion. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
If inlet or outlet sections disconnect, hot exhaust gases can vent before the tailpipe, creating a fire risk. If both clamps fail, the DOC/DPF housing can detach and become a road hazard. Schedule the recall repair soon and keep people away from hot exhaust components. Repair will be free at any franchised Freightliner dealer once available.
What should I do?
- Check your VIN to confirm your 2011-2012 Freightliner vehicle is included in this recall.
- Contact a franchised Freightliner dealer for next steps if you have not received an owner notice.
- Schedule the free Cummins V-band clamp repair that secures the DOC/DPF exhaust housing and stops hot exhaust gases from venting before the tailpipe.
- Bring the recall notice if you have it. If not, reference recall number 11V474 when you call.
- Avoid operating the vehicle if you notice exhaust noise, heat, or loose exhaust components, and ask the dealer about towing.
What happens at the repair
The remedy record says repairs are performed by authorized Cummins dealers free of charge. Because this page does not list the remedy as currently available, treat the dealer repair as free once available. The repair path centers on the V-band clamp assembly that connects the inlet and outlet cone sections to the diesel oxidation catalyst and diesel particulate filter housing. At the repair visit, the dealer addresses the clamp assembly so the T-bolt failure condition is corrected under the recall. Parts and labor are covered by the recall.
Timeline
| September 15, 2011 | NHTSA published the recall |
|---|---|
| October 10, 2011 | Owner notification mailed |
Frequently asked questions
What is recall 11V474?
Recall 11V474 covers 6,225 2011-2012 Freightliner vehicles with Cummins ISX or ISL diesel engines. The V-band clamp T-bolt on the diesel oxidation catalyst or diesel particulate filter can fracture, letting hot exhaust gases vent before the tailpipe. Authorized Cummins dealers perform the repair for free.
What should I do if my 2011-2012 Freightliner Coronado, Xcs, Mvp-Ef, Business Class M2, Saf-T-Liner Hdx, Xcr, Xcm, Xcl, Xbs, MT55, MT45, Mc, S2, or Xbr is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 11V474. If it is, contact an authorized Cummins dealer and ask for the free V-band clamp repair. Reference recall number 11V474 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the safety defect at no cost. For recall 11V474, authorized Cummins dealers perform the repair free of charge, including the parts and labor tied to the affected V-band clamp assembly.
What is the safety risk in recall 11V474?
The safety risk is fire and road debris. If the clamp loosens, hot exhaust gases can vent before the tailpipe and create a combustion risk. If both clamps fail, the diesel oxidation catalyst or diesel particulate filter housing can detach and create a road hazard.
What if I bought this Freightliner vehicle used?
The free recall repair still applies. Federal recall law follows the vehicle, not the first owner. Check your VIN to confirm whether your exact vehicle is included, then contact an authorized Cummins dealer and reference recall number 11V474.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/11V474000 |
|---|---|
| Freightliner customer service | 1-812-377-5000 |
| NHTSA recall # | 11V474 |
| NHTSA recall # (full) | 11V474000 |
Source documents
-
Download Recall Document (PDF) (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 →