Mack Trucks, Inc.: Safety Recalls in 2011
Updated on March 19, 2026.
There were 8 safety recalls made by Mack Trucks, Inc. in 2011. See the details of the recalls below.
You can also see similar information for other manufacturers.
Data Source: NHTSA.
September 1, 2011
(Campaign #: SC0358)
FIFTH WHEEL LOCK/FONTAINE
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011-2012 CXU TRUCKS MANUFACTURED FROM MAY 1, 2010, THROUGH JANUARY 31, 2011. DURING THE COUPLING PROCESS, IT IS POSSIBLE FOR THE DRIVER TO PARTIALLY CLOSE THE FIFTH WHEEL LOCK AND IF SOLELY RELYING ON A TUG TEST (PULL TEST), THE DRIVER MAY THINK THAT THE FIFTH WHEEL LOCK IS PROPERLY COUPLED TO THE TRAILER KING PIN WHEN IN FACT IT IS NOT PROPERLY COUPLED.
NHTSA ID: 11V461000
Component: TRAILER HITCHES
# of Units Affected: 113
Consequence Summary:
IF THE DRIVER DRIVES AWAY WITH A TRAILER THAT IS NOT PROPERLY COUPLED, THE TRAILER CAN COME LOOSE AND POTENTIALLY RESULT IN A VEHICLE CRASH.
Corrective Action:
MACK TRUCKS WILL NOTIFY OWNERS AND DEALERS WILL REPLACE THE LOCK BAR FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 7, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
July 21, 2011
(Campaign #: SC0355)
CLUTCH PEDAL
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2010-2011 CHU, CXU AND GU HEAVY TRUCKS MANUFACTURED FROM JULY 12, 2010, THROUGH JULY 23, 2010 FOR A POTENTIALLY DEFECTIVE WELD ON THE SHAFT THAT THE CLUTCH PEDAL ATTACHES TO.
NHTSA ID: 11V370000
Component: POWER TRAIN
# of Units Affected: 475
Consequence Summary:
IF THE WELD FAILS, THE PEDAL SHAFT MAY WORK ITS WAY LOOSE AND POTENTIALLY CAUSE THE CLUTCH PEDAL TO FALL TO THE FLOOR, WHICH WOULD LIMIT THE DRIVER'S CONTROL OF THE VEHICLE INCREASING THE RISK OF A CRASH.
Corrective Action:
DEALERS WILL REPLACE THE CLUTCH PEDAL SHAFT FREE OF CHARGE. THE SAFETY RECALL BEGAN ON AUGUST 29, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
July 20, 2011
(Campaign #: SC0356)
STEERING GEAR TORQUE
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2009-2012 MRU HEAVY TRUCKS MANUFACTURED FROM NOVEMBER 26, 2008, THROUGH APRIL 26, 2011. THE BOLTS USED TO MOUNT THE STEERING GEAR WERE NOT TIGHTENED TO SPECIFICATION. THE BOLTS CAN LOOSEN WHICH OVER TIME MAY CAUSE THE STEERING GEAR TO DISCONNECT FROM ITS MOUNTING BRACKET.
NHTSA ID: 11V374000
Component: STEERING
# of Units Affected: 2,294
Consequence Summary:
A COMPLETE LOSS OF STEERING MAY OCCUR INCREASING THE RISK OF A VEHICLE CRASH.
Corrective Action:
DEALERS WILL REPLACE THE BOLTS, WHICH WILL BE TIGHTENED TO THE CORRECT SPECIFICATION. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 19, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
May 20, 2011
(Campaign #: SC0354)
BATTERY CABLES
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2008-2011 GU HEAVY TRUCKS MANUFACTURED FROM SEPTEMBER 12, 2007, THROUGH APRIL 8, 2011, WITH A FOUR BATTERY CABLE DESIGN. AS A RESULT OF THE ROUTING AND CLIPPING USED, THE BATTERY CABLES MAY COME INTO CONTACT WITH FRAME HARDWARE, WHICH, AS A RESULT OF CHAFING, MAY CAUSE THE INSULATION TO BECOME WORN TO A POINT WHERE A SHORT OCCURS.
NHTSA ID: 11V292000
Component: ELECTRICAL SYSTEM
# of Units Affected: 771
Consequence Summary:
A SHORT CAN POTENTIALLY CAUSE A VEHICLE FIRE.
Corrective Action:
DEALERS WILL RE-ROUTE THE BATTERY CABLES AND REPLACE THE CABLES IF CHAFING HAS OCCURRED. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 11, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
May 20, 2011
(Campaign #: SC0353)
DRIVELINE ASSEMBLIES/MERITOR
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2012, CHU, CXU, GU, MRU, LEU, AND TD TRUCKS EQUIPPED WITH A MERITOR DRIVELINE. THE TUBING USED TO ASSEMBLE THE AFFECTED DRIVELINES HAS A NONCONFORMING SEAM WELD WITH INSUFFICIENT BONDING OF THE MATERIAL.
NHTSA ID: 11V295000
Component: POWER TRAIN
# of Units Affected: 584
Consequence Summary:
THIS CAN RESULT IN SEAM WELD FRACTURE WHEN TORQUE IS APPLIED. ONCE THE TUBE SEAM WELD IS FRACTURED, THE DRIVELINE MAY BECOME INOPERABLE WHICH MAY RESULT IN A DISABLED VEHICLE OR DEBRIS FROM THE DRIVELINE MAY FALL ON THE ROADWAY, BOTH OF WHICH CAN INCREASE THE RISK OF A CRASH.
Corrective Action:
DEALERS WILL REPLACE THE DRIVELINES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 25, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
Park Outside Advisory: No
Do not Drive Advisory: No
May 3, 2011
(Campaign #: SC0352)
AUTOMATIC SLACK ADJUSTER/ACCURIDE/GUNITE
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011-2012 CHU, CXU, GU, LEU AND MRU TRUCKS MANUFACTURED FROM OCTOBER 15, 2010, THROUGH JANUARY 31, 2011, AND EQUIPPED WITH GUNITE AUTOMATIC SLACK ADJUSTERS. DUE TO AN INCOMPLETE "KNITTING" OF THE IRON AT THE TIME OF CASTING, INADEQUATE STRUCTURAL INTEGRITY OF THE SLACK ADJUSTER HOUSING CAN OCCUR, WHICH COULD CAUSE THE HOUSING TO BREAK AT THE HANDLE UNDER NORMAL OPERATING LOADS.
NHTSA ID: 11V272000
Component: SERVICE BRAKES, AIR
# of Units Affected: 1,524
Consequence Summary:
SLACK ADJUSTERS WITH THIS FLOW NOTCH COULD CRACK UNDER NORMAL BRAKING CONDITIONS CAUSING LOSS OF BRAKING WHICH COULD RESULT IN A VEHICLE CRASH.
Corrective Action:
MACK TRUCKS WILL NOTIFY OWNERS AND DEALERS WILL REPLACE THE SUBJECT SLACK ADJUSTERS FREE OF CHARGE. THE SAFETY RECALL BEGAN ON AUGUST 24, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
Park Outside Advisory: No
Do not Drive Advisory: No
April 1, 2011
(Campaign #: SC0349/SC0350)
OVERHEATING MIRROR SWITCHES
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2008-2012 MRU AND LEU HEAVY TRUCKS MANUFACTURED FROM JANUARY 3, 2007, THROUGH FEBRUARY 3, 2011. THE ELECTRICAL CIRCUITRY IN THESE VEHICLES MAY NOT PROVIDE ADEQUATE OVERCURRENT PROTECTION.
NHTSA ID: 11V212000
Component:
# of Units Affected: 3,763
Consequence Summary:
IN THE EVENT OF AN ELECTRICAL OVERAGE, THE FUSE THAT SHOULD PREVENT THE OVER CURRENT FROM REACHING THE MIRROR SWITCH CIRCUIT MAY FAIL, SUCH THAT THE MIRROR SWITCH CAN OVERHEAT. AN OVERHEATED SWITCH COULD CAUSE A VEHICLE FIRE.
Corrective Action:
DEALERS WILL INSTALL A RELAY HARNESS TO PREVENT THE MIRROR SWITCH FROM OVERHEATING. THEY WILL ALSO INSPECT THE MIRROR SWITCH AND IF SIGNS OF OVERHEATING ARE SHOWN, REPLACE THAT SWITCH. ALL INSPECTIONS AND REPAIRS WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JUNE 30, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
March 31, 2011
(Campaign #: SC0351)
FIFTH WHEEL MOUNTING BOLTS
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2008-2011 CHU AND CXU HEAVY TRUCKS MANUFACTURED FROM JANUARY 2008 THROUGH JULY 2010. THERE MAY BE AN INTERFERENCE WITH THE BOLTS USED TO SECURE THE FIFTH WHEEL TO THE FRAME THAT CAN PREVENT THE BOLTS FROM BEING TORQUED TO SPECIFICATION.
NHTSA ID: 11V209000
Component: TRAILER HITCHES
# of Units Affected: 808
Consequence Summary:
THE BOLTS MAY FAIL AND COULD RESULT IN THE FIFTH WHEEL COMING LOOSE CAUSING THE TRAILER TO SEPARATE FROM THE TRACTOR INCREASING THE RISK OF A CRASH.
Corrective Action:
DEALERS WILL INSPECT AND REPLACE THE BOLTS AS REQUIRED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MAY 30, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
Park Outside Advisory: No
Do not Drive Advisory: No
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