2015 Mack Chu problems, complaints & recalls
Safety recalls (4)
Steering:linkages:tie Rod Assembly 2014-11-18 · campaign 14V737000 · 1,048 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain model year 2015 CHU and CXU trucks manufactured from March 31, 2014, through June 26, 2014. In the affected vehicles, the collars that prevent the ball sockets from backing out of the tie rod may have been incorrectly positioned. This may allow the ball sockets to come loose.
Risk: If the ball sockets come loose from the tie rod, a complete loss of steering may result, increasing the risk of a crash.
Fix: Mack will notify owners, and dealers will inspect and re-position the collar if necessary, free of charge. The recall began on January 20, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0385.
Seat Belts 2014-09-11 · campaign 14V553000 · 381 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2015 CHU, CXU, and GU trucks manufactured June 4, 2014, through June 18, 2014. In the affected vehicles, the bolts that attach the seat belt to the seat frame may not have been torqued to the required specification. This could cause the bolts to loosen over time, allowing the seat belt to detach.
Risk: If the seat belt detaches from its mounts, the seat belt would fail to properly restrain to the seat occupant, increasing the risk of injury in the the event of a crash.
Fix: Mack will notify owners, and dealers will tighten the bolts to the required specification, free of charge. The recall began in October 2014. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0383.
Forward Collision Avoidance: Adaptive Cruise Control 2014-09-09 · campaign 14V545000 · 538 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain model year 2013-2015 CXU and 2014-2015 CHU trucks manufactured August 23, 2012, through June 27, 2014, and equipped with adaptive cruise control. Due to a software error, the affected vehicles may not provide visual or audible alerts to the driver warning them that an obstruction in the road was detected.
Risk: If the driver is not warned of something being in the truck's path, there is an increased risk of a crash.
Fix: Mack will notify owners, and dealers will reprogram the vehicle control unit, free of charge. The recall began on September 30, 2014. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0381.
Electrical System 2014-02-21 · campaign 14V078000 · 70,208 vehicles
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 certain model year 2008-2009 and 2013-2014 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. Having completed its investigation, Mack once again expa
Risk: Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
Fix: 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 in February 2015. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0375.
Service bulletins (265)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Power Train 2026-04-09 · CBR 2573-1 202604 · Service Bulletin/Repair Instructions
cbr - mack chassis - through shaft bearing retainer breakage on mack carriers.
Power Train 2026-04-09 · CBR 2362-3 202604 · Service Bulletin/Repair Instructions
cbr - mack carrier nut adhesive change.
Suspension 2026-03-02 · CBR 2246-5 032026 · Service Bulletin/Repair Instructions
cbr - z spring bracket wear.
Vehicle Speed Control 2026-01-08 · CBR 820-9 202601 · Service Bulletin/Repair Instructions
cbr - mack chassis - engine brake only works with the brake pedal, no function during cruise. us07 and newer emissions, model year 2008 and newer.
Engine 2025-11-22 · CBR 2171-11 202511 · Service Bulletin/Repair Instructions
cbr - mack temperature sensor troubleshooting guide
Electrical System 2025-07-28 · CBR 2488 072025 · Service Bulletin/Repair Instructions
cbr - a significant gps reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit gps location data.
Showing the 6 most recent of 265 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.