Mack GU problems by model year
Updated from NHTSA data · How we count
NHTSA has 2 owner complaints and 6 recalls on file for the Mack GU (2007–2018).
- Complaints
- 2
- Recalls
- 6
- Model years
- 7
- Worst year
- —
Complaints by model year
Newer model years have had less time on the road, so they naturally have fewer complaints. Compare a year against its neighbors rather than against brand-new models.
Every Mack GU model year
| Year | Complaints | Crashes | Fires | Injuries | Recalls | Top problem |
|---|---|---|---|---|---|---|
| 2018 GU | 1 | 0 | 0 | 0 | 0 | Electrical System |
| 2014 GU | 1 | 1 | 0 | 1 | 0 | Transmission & Drivetrain |
| 2011 GU | 0 | 0 | 0 | 0 | 5 | — |
| 2010 GU | 0 | 0 | 0 | 0 | 4 | — |
| 2009 GU | 0 | 0 | 0 | 0 | 5 | — |
| 2008 GU | 0 | 0 | 0 | 0 | 4 | — |
| 2007 GU | 0 | 0 | 0 | 0 | 1 | — |
Most common Mack GU problem areas (all years)
- Electrical System1 complaints
- Lighting1 complaints
- Transmission & Drivetrain1 complaints
- Visibility & Wipers1 complaints
Mack GU recalls
Risk: A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
Risk: Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
Risk: If the control box loses ground, it may have localized overheating. This could lead to a vehicle fire.
Risk: A short can potentially cause a vehicle fire.
Risk: Slack adjusters with this flow notch could crack under normal braking conditions causing loss of braking which could result in a vehicle crash.
Risk: If the brakes do not perform as they should, a vehicle crash could occur.
Other Mack models
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. Methodology