vehicle signal
U.S. public vehicle records

2010 Mack CXU612: complaints, problems and recalls

Explore the records behind recurring owner reports.

Key facts

6 owner complaints analyzed

0 distinct recall campaigns

63,450 mi median reported failure mileage

Scope: 2010 model year. Data snapshot: . 5 complaints include usable failure mileage.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Trailer Hitches is the most frequently named component, appearing in 6 of 6 complaints (100.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Transmission and shifting116.7%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Trailer Hitches
6
Structure:Frame And Members
3
Suspension
1
Component breakdown data
CategoryCount
Trailer Hitches6
Structure:Frame And Members3
Suspension1

Trailer Hitches: 6; Structure:Frame And Members: 3; Suspension: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
1
25,000 to 49,999
0
50,000 to 74,999
2
75,000 to 99,999
1
100,000 to 149,999
0
150,000 and above
1
Reported problems by failure mileage data
CategoryCount
Under 25,0001
25,000 to 49,9990
50,000 to 74,9992
75,000 to 99,9991
100,000 to 149,9990
150,000 and above1

Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 2; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 1

50,000 to 74,999 miles has the most reports with usable mileage (2). 1 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2010
4
2011
2
Complaints over time data
CategoryCount
20104
20112

2010: 4; 2011: 2

Pattern summary

Trailer Hitches leads the component reports. Transmission and shifting appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Examples from the source records

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 10356665 · 2010-09-20 (September 20, 2010)

I AM A MECHANIC FOR ABF. FOR THE LAST THREE YEARS, MACK HAS SOLD TO ABF ROAD TRACTORS WITH DEFECTIVE 5TH WHEEL MOUNTING BOLTS. THE BOLTS STRETCH AND BECOME LOOSE WITH USE (USUALLY WITHIN THE FIRST 30,000 MILES). FOR UNKNOWN REASONS ABF HAS NEVER HELD MACK ACCOUNTABLE FOR THIS PROBLEM, PREFERRING TO TIGHTEN THE BOLTS WHEN A DRIVER COMPLAINS AND REPLACING BOLTS WHEN THEY PULL IN TWO. I HAVE REPEATEDLY WARNED MY SUPERVISORS THAT THESE BOLTS SHOULD BE REPLACED RATHER THAN REPEATEDLY RETORQUED, BUT HAVE BEEN REBUFFED DUE TO MANAGEMENT DISTRUST OF…

Owner-reported narrative. Look up ODI 10356665 at NHTSA ↗

Owner report 10356871 · 2010-09-21 (September 21, 2010)

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 COMPLAINT #10356665. THE BOLTS WERE LOOSE AFTER ONLY 63,450 MILES OF SERVICE. I TRIED TO TIGHTEN THEM AS I HAD PREVIOUSLY BEEN ORDERED TO DO BUT THE BOLTS ONLY STRETCHED. I REPLACED THE 5TH WHEEL BOLTS. THE OLD BOLTS THAT HAD BEEN TIGHTENED WERE VISIBLY S…

Owner-reported narrative. 63,450 miles reported. Look up ODI 10356871 at NHTSA ↗

Owner report 10357085 · 2010-09-22 (September 22, 2010)

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 THEM, AND ATTEMPTED TO TORQUE THEM TO MACK SPECS OF 235 FT.LBS. TORQUE. NONE OF THE BOLTS WOULD TIGHTEN PROPERLY, ALL OF THEM STRETCHED. I REPLACED ALL OF THE BOLTS AND TAGGED THE DEFECTIVE BOLTS FOR MACK WARRANTY. AS A CITIZEN WHO EXPECTS THE HIGHWAYS …

Owner-reported narrative. 51,285 miles reported. Look up ODI 10357085 at NHTSA ↗

Owner report 10358965 · 2010-10-03 (October 3, 2010)

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 COULD TURN THE 5TH WHEEL BOLTS WITH ONE HAND USING A 10 INCH COMBINATION WRENCH. I TRIED TO TORQUE THE BOLTS TO SPECS, BUT THEY ONLY STRETCHED. I REPLACED THE BOLTS WITH AFTERMARKET BOLTS WHICH TIGHTENED NORMALLY. *TR

Owner-reported narrative. 4,376 miles reported. Look up ODI 10358965 at NHTSA ↗

Owner report 10390328 · 2011-03-15 (March 15, 2011)

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 BOLTS ON OUR ROAD TRACTORS. TODAY (03/15/2011) I PASSED A 2010 TRACTOR ON THE READY LINE. IT WAS UNIT #10289 WITH ONLY 76327 MILES ON IT. THE 5TH WHEEL PLATE HAD BEEN SHIFTING ON THE FRAME AND ALL OF THE FASTENING BOLTS WERE RUSTY. THE TWO BOLTS THAT …

Owner-reported narrative. 76,327 miles reported. Look up ODI 10390328 at NHTSA ↗

Owner report 10392537 · 2011-03-22 (March 22, 2011)

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

Owner-reported narrative. 150,000 miles reported. Look up ODI 10392537 at NHTSA ↗

Recall history

0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

No recall campaigns are recorded in this snapshot.