The defect
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 AND VEHICLE MAY NOT HAVE BEEN DISABLED ON ENGINES INTENDED FOR EMERGENCY VEHICLE APPLICATIONS.
The risk
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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Freightliner Business Class M2 | 2011, 2012 |
| Western Star 4900 | 2011, 2012 |
Components: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Freightliner Business Class M2 | 2011 | 0 | 8 |
| Freightliner Business Class M2 | 2012 | 4 | 12 |
| Western Star 4900 | 2011 | 1 | 14 |
| Western Star 4900 | 2012 | 1 | 8 |
Other engine and engine cooling recalls in 2011
56 of the 597 recall campaigns reported to NHTSA in 2011 concerned the engine and engine cooling; DAIMLER TRUCKS NORTH AMERICA filed 134 campaigns in all.
| 11V592000 19 Dec 2011 | NISSAN NORTH AMERICA, INC. |
| 11V593000 19 Dec 2011 | AMERICAN SUZUKI MOTOR CORP. |
| 11V583000 8 Dec 2011 | NISSAN NORTH AMERICA, INC. |
| 11V576000 5 Dec 2011 | DAIMLER TRUCKS NORTH AMERICA |
| 11V573000 5 Dec 2011 | DAIMLER TRUCKS NORTH AMERICA |
| 11V570000 1 Dec 2011 | SUTPHEN CORPORATION |
| 11V547000 10 Nov 2011 | TIFFIN MOTORHOMES, INC. |
| 11V539000 9 Nov 2011 | Toyota Motor Engineering & Manufacturing |
NHTSA recalls (public domain) · all recalls of 2011