Mack GU Problems by Year
NHTSA has 6 owner complaints and 14 safety recalls on file for the Mack GU, across 10 model years (2007–2018). The 2018 model year has the most complaints (1). The most reported problem area overall is engine.
Mack GU years to avoid? What the complaint data shows
No GU model year stands out with more than twice the complaints of a typical year.
Model years with the most complaints
Model years with the fewest complaints
Complaint counts are not adjusted for how many cars were sold or how long each year has been on the road, so newer and less popular years naturally have fewer complaints. Use them to spot problem patterns, not as a safety ranking.
Most common Mack GU problems (all years)
| Problem area | Complaints | Model years | Crashes |
|---|---|---|---|
| Engine | 2 | 2 | 0 |
| Power Train | 2 | 2 | 1 |
| Electrical System | 1 | 1 | 0 |
| Exterior Lighting | 1 | 1 | 0 |
| Structure | 1 | 1 | 0 |
| Vehicle Speed Control | 1 | 1 | 0 |
| Visibility/wiper | 1 | 1 | 0 |
All Mack GU model years
| Model year | Complaints | Recalls | Crash rating | Top problem | Compared with other years |
|---|---|---|---|---|---|
| 2018 GU | 1 | 0 | — | Electrical System | |
| 2016 GU | 0 | 0 | — | — | |
| 2015 GU | 1 | 0 | — | Power Train | |
| 2014 GU | 1 | 0 | — | Power Train | |
| 2013 GU | 1 | 0 | — | Structure | |
| 2011 GU | 0 | 5 | — | — | |
| 2010 GU | 1 | 4 | — | Engine | |
| 2009 GU | 1 | 7 | — | Engine | |
| 2008 GU | 0 | 9 | — | — | |
| 2007 GU | 0 | 2 | — | — |
More from Mack: all Mack models · VIN decoder
Frequently asked questions
Which Mack GU years should you stay away from?
No year stands out at twice the typical count; the most complaints are for 2018 (1), 2015 (1), 2014 (1). Counts are not adjusted for how many cars were sold, and newer years have had less time to collect complaints.
What is the biggest problem with the Mack GU?
Engine, with 2 complaints across 2 model years.
How many recalls does the Mack GU have?
14 safety recalls across all model years. Each model year page lists its recalls and fixes.