WESTERN STAR 4900 2012: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA Campaign ID Number: 11V605000

Production Dates: 2010-07-02 - 2011-12-13

Manufacturers Involved: Daimler Trucks North America, LLC

Manufacturer Campaign Number: 11C-4

Component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Potential Number Of Units Affected: 66

Report Initiator: MFR MFR Report

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.

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.

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.

DTNA'S RECALL CAMPAIGN NUMBER IS 11C-4 'FL-621'.OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 'TTY 1-800-424-9153', OR GO TO HTTP://WWW.SAFERCAR.GOV .