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Mack GUYears to avoid, problems & recalls

NHTSA has 6 owner complaints and 14 safety recalls on record for the Mack GU.

Years to avoidNoneBased on weighted complaintsBest years—Fewest complaints for their ageOwner complaints6Top: Power trainSafety recalls142007–2018 model years

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports. Updated daily. How we score years.

Best & worst years

Mack GU years to avoid

Complaints by model year, colored by the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the GU median. Tap a year for its full report.

'07'08'09'10'11'13'14'15'18
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
2018Not rated–/1001 complaint · 0 recalls2015Not rated–/1001 complaint · 0 recalls2014Not rated–/1001 complaint · 0 recalls2013Not rated–/1001 complaint · 0 recalls2011Not rated–/1000 complaints · 5 recalls2010Not rated–/1001 complaint · 4 recalls2009Not rated–/1001 complaint · 7 recalls2008Not rated–/1000 complaints · 9 recalls2007Not rated–/1000 complaints · 2 recalls
Complaints by system

Most common Mack GU problems

All model years combined: 6 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Power train21
Engine20
Exterior lighting10
Electrical system10
Structure10
Vehicle speed control10
Visibility/wiper10
14 recalls

Mack GU recalls

Newest first. The ring shows the share of affected vehicles repaired, from the manufacturer's latest report to NHTSA.

77%Turn signal: flasher unit14V-208 · 2008–2011 · Apr 18, 2014 · 44,047 vehicles54%Electrical system14V-078 · 2007–2011 · Feb 21, 2014 · 70,208 vehicles–Electrical system12V-519 · 2009 · Oct 18, 2012 · 260 vehicles–12v/24v/48v battery: cables11V-292 · 2008–2011 · May 20, 2011 · 771 vehicles–Slack adjusters: automatic11V-272 · 2011 · May 3, 2011 · 1,524 vehicles–Service brakes, air10V-404 · 2008–2011 · Sep 7, 2010 · 369 vehicles–Exterior lighting: headlights08V-331 · 2009 · Jul 23, 2008 · 265 vehicles–Conventional: air08V-177 · 2009 · Apr 17, 2008 · 66 vehicles–Exterior lighting07V-478 · 2008 · Oct 11, 2007 · 61 vehicles–Supply: check valve07V-361 · 2008 · Aug 15, 2007 · 21,847 vehicles–Parking brake07V-360 · 2008 · Aug 15, 2007 · 18,805 vehicles–Steering07V-322 · 2008 · Jul 24, 2007 · 1,072 vehicles

Showing the 12 newest of 14 recalls. Each model-year page lists all recalls for that year.

2 investigations

NHTSA investigations of the GU

  1. mDrive Transmission Failure to DisengagePE20005 · 2016 · closed Apr 4, 2022
    No recall
  2. AIR BRAKE CONTROL VALVEPE09010 · 2009 · closed Jun 18, 2009
    No recall