2003–2005 Unimog U500 Recall: ON CERTAIN TRUCKS EQUIPPED WITH AUTOMATIC SHIFT, AIR MAY LEAK INTO THE…
NHTSA campaign 06V237000 · Power Train · filed Jul 3, 2006 · verified Jul 30, 2026
The defect
ON CERTAIN TRUCKS EQUIPPED WITH AUTOMATIC SHIFT, AIR MAY LEAK INTO THE CLUTCH HYDRAULIC SYSTEM AT THE CENTRAL RELEASE BEARING SEAL PREVENTING THE CLUTCH FROM OPENING COMPLETELY AND POTENTIALLY PREVENTING THE TRANSMISSION FROM SHIFTING INTO NEUTRAL.
The risk
FAILURE OF THE CLUTCH TO OPEN COMPLETELY OR THE TRANSMISSION TO SHIFT INTO NEUTRAL COULD MAKE THE VEHICLE DIFFICULTY TO BRING TO A COMPLETE STOP OR CAUSE THE VEHICLE TO ROLL FORWARD WHILE STOPPED INCREASING THE RISK OF A CRASH.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DEALERS WILL REPLACE THE CENTRAL RELEASE BEARING AND UPDATE THE CLUTCH ACTUATION ELECTRONIC CONTROL UNIT (ECU) SOFTWARE FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 24, 2006. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.
FREIGHTLINER RECALL NO. FL-478.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.
Affected vehicles
Related recalls
More Unimog U500 recalls
Other campaigns involving Unimog vehicles
Source: NHTSA recall database, campaign 06V237000 (manufacturer number FL-478). Data last verified Jul 30, 2026.