Freightliner Business Class M2, Western Star 4900, model years 2011 to 2012. Filed by Daimler Trucks North America and reported to NHTSA on 27 December 2011. 66 vehicles potentially affected.
What the notice says Daimler trucks (dtna) is recalling certain model year 2011 and 2012 freightliner business class m2 and western star 4900 emergency vehicles manufactured from july 2, 2010, through december 13, 2011, equipped with a dd13 epa10 detroit diesel engine. the engine shutdown software normally provided to protect the engine …
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Dtna's own number for this recall: 11C-4. That is the number on the owner letter and on the dealer paperwork. 11V605 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 11V605 cover?
- Freightliner Business Class M2, Western Star 4900, model years 2011-2012.
- What is wrong with them?
- DAIMLER TRUCKS (DTNA) IS RECALLING CERTAIN MODEL YEAR 2011 AND 2012 FREIGHTLINER BUSINESS CLASS M2 AND WESTERN STAR 4900 EMERGENCY VEHICLES MANUFACTURED FROM JULY 2, 2010, THROUGH DECEMBER 13, 2011, EQUIPPED WITH A DD13 EPA10 DETROIT DIESEL ENGINE.
- What can happen if it is not put right?
- IF THE VEHICLE OPERATOR RECEIVES AND IGNORES MULTIPLE WARNINGS INDICATING THE NEED FOR OPERATOR INTERVENTION, THE ENGINE MAY SHUT DOWN UNEXPECTEDLY. UNEXPECTED EMERGENCY VEHICLE ENGINE SHUTDOWN UNDER CERTAIN CONDITIONS COULD HAMPER RESCUE OPERATIONS AND PLACE THE PUBLIC AT RISK.
- Is there a fix yet?
- Yes, and it is free. DTNA WILL NOTIFY OWNERS, AND DEALERS WILL DISABLE THE ENGINE SHUTDOWN SOFTWARE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 13, 2012. OWNERS MAY CONTACT DTNA AT 1-800-547-0712.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Dtna calls this recall 11C-4, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “IF THE VEHICLE OPERATOR RECEIVES AND IGNORES MULTIPLE WARNINGS INDICATING THE NEED FOR OPERATOR INTERVENTION, THE ENGINE MAY SHUT DOWN UNEXPECTEDLY. UNEXPECTED EMERGENCY VEHICLE ENGINE SHUTDOWN UNDER CERTAIN CONDITIONS COULD HAMPER RESCUE O…”
affected
in the notice
caught
| Campaign | 11V605 |
|---|---|
| Filed by | DAIMLER TRUCKS NORTH AMERICA |
| System at fault | Engine And Engine Cooling:Engine:Diesel |
| Reported to NHTSA | 27 December 2011 |
| Model years | 2011-2012 |
| Vehicles named | FREIGHTLINER BUSINESS CLASS M2, WESTERN STAR 4900 |
What the notice says today
The consequence
IF THE VEHICLE OPERATOR RECEIVES AND IGNORES MULTIPLE WARNINGS INDICATING THE NEED FOR OPERATOR INTERVENTION, THE ENGINE MAY SHUT DOWN UNEXPECTEDLY. UNEXPECTED EMERGENCY VEHICLE ENGINE SHUTDOWN UNDER CERTAIN CONDITIONS COULD HAMPER RESCUE OPERATIONS AND PLACE THE PUBLIC AT RISK.
The remedy
DTNA WILL NOTIFY OWNERS, AND DEALERS WILL DISABLE THE ENGINE SHUTDOWN SOFTWARE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 13, 2012. OWNERS MAY CONTACT DTNA AT 1-800-547-0712.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 11V605, wording as read on 17 September 2026. https://carsmultiverse.com/recall/11v605/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 11V605 on 23 August 2026, they were:
- Defect summary
3227ce5e - Consequence
7cd4065b - Remedy
2cdf5740
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 11V605 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Freightliner Business Class M2, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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