2011 Mack Pinnacle (cxu) Recalls

Recalls on record Updated July 2026

The 2011 Mack Pinnacle (cxu) has 11 NHTSA recall campaigns affecting an estimated 121,077 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

TRAILER HITCHES 15V644000 2015-10-13 448 affected
Defect

Mack Trucks, Inc. (Mack) is recalling certain model year 2011-2014 Pinnacle (CHU and CXU) trucks manufactured September 10, 2010, to June 17, 2013. The affected trucks are equipped with Fontaine Ultra LT Fifth Wheel connectors, which, due to cumulative damage to the fifth wheel and its locking mechanism, have a…

Consequence

If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to operate as intended and the trailer may unexpectedly detach from the tractor, increasing the risk of a crash.

Remedy

Mack will notify owners, and Fontaine dealers will replace the fifth wheel with an Ultra NT model fifth wheel, free of charge. The recall began on November 18, 2015. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0395.

EXTERIOR LIGHTING 14V205000 2014-04-18 1,342 affected
Defect

Mack Trucks Inc. (Mack) is recalling certain model year 2010-2015 CXU trucks manufactured November 20, 2009, through January 27, 2014, and equipped with dual vertical exhaust pipes. The white conspicuity reflectors on the rear of the cab could be blocked by the exhaust pipes. As such, these vehicles do not conform…

Consequence

A blocked reflector makes the truck-tractor less visible when operating the vehicle without a trailer in the dark, increasing the risk of a crash.

Remedy

Mack will notify owners, and dealers will inspect the trucks and if the reflectors are blocked, they will add two vertical white reflectors to the rear glass , free of charge. The recall began on May 30, 2014. Owners may contact Mack Customer Service at 1-336-393-2000. Mack's number for this recall is SC0378.

EXTERIOR LIGHTING 14V208000 2014-04-18 44,047 affected
Defect

Mack Trucks Inc. (Mack) is recalling certain model year 2010-2014 CHU, CXU, and MRU, 2007 CT and CV, 2008-2014 GU, and 2011-2014 LEU, and TD trucks manufactured February 28, 2006, through November 8, 2013, and equipped Hamsar Electronic Flasher. The hazard warning lights may fail.

Consequence

A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.

Remedy

Mack will notify owners, and dealers will replace the electronic flasher unit, free of charge. The recall will begin by mid-June 2014. Interim letters went out to owners on June 23, 2014. The recall began on July 25, 2014. Owners may contact Mack customer service at 1-866-298-6586. Mack's number for this recall…

ELECTRICAL SYSTEM 14V078000 2014-02-21 70,208 affected
Defect

Mack Trucks, Inc. (Mack) notified the agency on February 20, 2014, that they are recalling certain model year 2010-2012 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. While continuing to research the scope of the issue, Mack expanded the recall on November 18, 2014 to include…

Consequence

Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.

Remedy

Mack has notified owners, and dealers will inspect the EPDM. If contamination has occurred, dealers will replace the EPDM and address the leak, free of charge. Owners of model year 2010-2012 CHU, CXU, GU and TD vehicles were initially notified April 24, 2014. Owners affected by the recall expansions were notified…

PARKING BRAKE 13V153000 2013-04-22 331 affected
Defect

Mack Trucks, Inc. is recalling certain model year 2011-2013 CXU trucks manufactured November 23, 2010, through March 19, 2012. These vehicles are equipped with an MGM Type 24 J-series piston parking brake chamber. In the affected axles, the brake chambers may leak pressure allowing the parking brake to drag when it…

Consequence

Overheated brake components could result in a fire.

Remedy

Mack Trucks will notify owners and the brake chambers will be replaced as needed, free of charge. The safety recall is expected to begin on, or before, June 17, 2013. Owners may contact Mack at 1-800-866-1177. Mack Truck's campaign recall number is SC0369.

TRAILER HITCHES 11V461000 2011-09-01 113 affected
Defect

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…

Consequence

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.

Remedy

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.

POWER TRAIN 11V370000 2011-07-21 475 affected
Defect

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.

Consequence

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.

Remedy

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.

SERVICE BRAKES, AIR 11V272000 2011-05-03 1,524 affected
Defect

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…

Consequence

SLACK ADJUSTERS WITH THIS FLOW NOTCH COULD CRACK UNDER NORMAL BRAKING CONDITIONS CAUSING LOSS OF BRAKING WHICH COULD RESULT IN A VEHICLE CRASH.

Remedy

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.

TRAILER HITCHES 11V209000 2011-03-31 808 affected
Defect

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.

Consequence

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.

Remedy

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.

VISIBILITY 10V537000 2010-10-27 21 affected
Defect

MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011 CHU AND CXU, HEAVY TRUCKS MANUFACTURED FROM JULY 13, 2010, THROUGH AUGUST 13, 2010, WITHOUT REAR MUD FLAP HANGER BRACKETS. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED…

Consequence

LACK OF REFLECTORS COULD LEAD TO REDUCED VISIBILITY OF THE VEHICLE INCREASING THE RISK OF A CRASH.

Remedy

DEALERS WILL INSPECT AND INSTALL CONSPICUITY TREATMENT AS REQUIRED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 2, 2011. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.

ELECTRICAL SYSTEM 10V536000 2010-10-27 1,760 affected
Defect

MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2010 THROUGH 2011 CXU, HEAVY TRUCKS MANUFACTURED FROM AUGUST 12, 2009, THROUGH AUGUST 31, 2010. THE REAR HOLD-DOWN BRACKETS THAT SECURE THE BATTERY BOX LID MAY BE ROTATED TOO FAR FORWARD, WHICH MAY RESTRICT THE BATTERY BOX LID FROM PROPERLY SEATING.

Consequence

IF THIS OCCURS, THE BATTERY BOX LID MAY COME OFF WHEN STEPPING ON THE STEP, WHICH MAY CAUSE A PERSON TO FALL FROM THE VEHICLE RESULTING IN PERSONAL INJURY.

Remedy

MACK WILL INSPECT AND ADJUST THE REAR HOLD-DOWN BRACKETS AS REQUIRED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 1, 2010. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2011 Mack Pinnacle (cxu) as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.