Power train: automatic transmissionRecall 06V-457 · 2003–2006 Unimog U500
FREIGHTLINER LLC recall 06V-457 covers 80 2003–2006 Unimog U500 for a power train: automatic transmission problem, reported to NHTSA on November 30, 2006.
Source: NHTSA recall 06V457000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
ON CERTAIN TRUCKS EQUIPPED WITH THE EAS TRANSMISSION OPTION, A PROGRAMMING LOGIC ERROR IN THE TRANSMISSION AUTOMATIC SHIFT SYSTEM MAY PREVENT THE VEHICLE'S CLUTCH FROM DISENGAGING WHEN THE VEHICLE IS OPERATED IN WORKING GROUP OR CRAWLER GEAR RANGE (LOW-LOW RANGE).
The risk
THE BRAKE SYSTEM IS NOT CAPABLE OF OVERCOMING THE ENGINE TORQUE TRANSMITTED TO THE WHEEL ENDS WHEN THE VEHICLE IS OPERATED IN WORKING GROUP OR CRAWLER GEAR RANGE. IF THE CLUTCH FAILS TO DISENGAGE THE ENGINE MUST BE SHUT-DOWN IN ORDER TO BRING THE VEHICLE TO A STOP POTENTIALLY RESULTING IN A VEHICLE CRASH OR PERSONAL INJURY.
The fix
DEALERS WILL MODIFY THE AUTOMATIC SHIFT SYSTEM TO PROVIDE REDUCED ENGINE TORQUE WHEN THE BRAKES ARE APPLIED WHILE THE VEHICLE IS OPERATED IN WORKING GROUP OR CRAWLER GEAR RANGE. THE GEAR SHIFT ELECTRONIC CONTROL UNIT WILL BE REPLACED AND TWO RELAYS WILL BE ADDED. THE RECALL BEGAN ON MARCH 28, 2007. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.
FREIGHTLINER RECALL NO. FL-486.CUSTOMERS CAN 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.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from November 1, 2003 to September 30, 2006. Not every vehicle in these model years is included; check by VIN.