2010 Mack Cxu612 Recalls
No NHTSA recalls on record for the 2010 Mack Cxu612. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 10 complaints with NHTSA, most often about the trailer hitches. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“The 5th wheel mount bolts on my company's 2010 and 2009 mack trucks are stretching and becoming loose. I saw unit 10101 on sunday, 20 march 2011 on our yard ready to hook up. I had finished my shift and was walking past the unit when I reached out and turned the bolt by hand. *tr”
“I am a mechanic for a large trucking firm. I have been complaining about the 5th wheel bolts on our 2008, 2009, and 2010 mack trucks for two years now. The company has yet to implement a program to correct this matter, instead choosing to threaten me with disciplinary action for pointing out loose…”
“As a mechanic contracted to maintain abf road tractors, I worked on unit 10064 on 9/22/2010. I discovered that the 5th wheel mount bolts were all loose. This truck had only 51,285 miles of service pulling pup trailers! I removed the bolts to make sure there was no thread damage, lightly oiled…”
“As a mechanic contracted to maintain abf road tractors, I worked on unit 10064 on 9/22/2010. I discovered that the 5th wheel mount bolts were all loose. This truck had only 51,285 miles of service pulling pup trailers! I removed the bolts to make sure there was no thread damage, lightly oiled…”
“Mack has been selling over the road trucks with substandard bolts holding the 5th wheel to the frame. As a mechanic with abf, I am seeing trucks every day with 5th wheels that are loose. On 22 september 2010, I worked on unit #10222 at the little rock shop. This truck had only 4376 miles on it and…”
“Mack has been selling over the road trucks with substandard bolts holding the 5th wheel to the frame. As a mechanic with abf, I am seeing trucks every day with 5th wheels that are loose. On 22 september 2010, I worked on unit #10222 at the little rock shop. This truck had only 4376 miles on it and…”
“I am a mechanic for abf freight system. I have observed that many of the mack trucks we use in our road fleet have premature failure of the fasteners holding the 5th wheel coupler to the truck frame. I worked on unit 10016 on 9/21/2010 and checked the 5th wheel bolt tightness as a follow up to…”
“I am a mechanic for abf freight system. I have observed that many of the mack trucks we use in our road fleet have premature failure of the fasteners holding the 5th wheel coupler to the truck frame. I worked on unit 10016 on 9/21/2010 and checked the 5th wheel bolt tightness as a follow up to…”
Defect investigations
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 2010 Mack Cxu612 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.