The 2009 Mack Cxu has 3 NHTSA recall campaigns affecting an estimated 74,880 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 5 complaints with NHTSA, most often about the trailer hitches. Last updated July 5, 2026.
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…
Mack is recalling certain model year 2007-2010 CHU and CXU vehicles, manufactured from October 13, 2006, through December 23, 2009 and equipped with daytime running lights and fog lights. A short in the fog light circuit may cause the low beam headlight circuit to cut out.
Consequence
If the low beam headlights go out, the driver may lose visibility, increasing the risk of a crash.
Remedy
Mack will notify owners, and install an additional wiring harness on the affected vehicles, free of charge. The safety recall began on November 14, 2012. Owners may contact Mack Trucks at 1-800-866-1177.
TRAILER HITCHES11V2090002011-03-31808 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.
Complaints by component
TRAILER HITCHES
2
STRUCTURE
1
STRUCTURE:FRAME AND MEMBERS
1
SUSPENSION
1
Total complaints5
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“On tuesday, july 19 of 2011, I observed that the 5th wheel bolts on abf unit number 19223 were loose enough to be turned by hand. The bolts are not being interfered with by the huck rivets below them. The nuts are prevailing torque lock nuts and are not loose on the bolts. The bolts have stretched…”
“Some of the 2008, many of the 2009, and almost all of the 2010 model mack trucks used by abf freight system were built and delivered with weak bolts holding the 5th wheel coupler to the frame. On 27 sept 2010, unit 19212 was in the shop for routine repairs. A mechanic noticed that all of the bolts…”
“Some of the 2008, many of the 2009, and almost all of the 2010 model mack trucks used by abf freight system were built and delivered with weak bolts holding the 5th wheel coupler to the frame. On 27 sept 2010, unit 19212 was in the shop for routine repairs. A mechanic noticed that all of the bolts…”
“My coworker was changing the oil on a 2009 mack and I happened to notice that the 5th wheel plate was shifting around on the frame. I applied a box end wrench to the mount bolts and discovered that all ten of the fasteners holding the 5th wheel to the frame could be turned easily using one hand.…”
“My coworker was changing the oil on a 2009 mack and I happened to notice that the 5th wheel plate was shifting around on the frame. I applied a box end wrench to the mount bolts and discovered that all ten of the fasteners holding the 5th wheel to the frame could be turned easily using one hand.…”
Defect investigations
InvestigationPE10042 Opened 2010-11-04 · closed 2011-04-27
Failing 5th wheel attachment bolts
On October 3rd 2010 the Office of Defects Investigation (ODI) received two complaints on 2009 - 2010 Mack CXU612 and CXU trucks for failing bolts that clamp the 5th wheel to the frame of the truck. On January 19, 2011 ODI opened this Preliminary Evaluation.During the course of the investigation ODI took possession of…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2009 Mack Cxu as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.