The defect
Mack Trucks is recalling certain model year 2013-2014 CHU, CXU, GU, LEU, and MRU vehicles manufactured with pro-torque axle spindle nuts from August 28, 2012, through August 16, 2013. The pro-torque nut may not have been installed correctly, which may result in a loosening of the nut.
The risk
If the nut comes loose, the hub assembly may separate from the vehicle, increasing the risk of a crash.
The remedy
Mack Trucks will notify owners, and dealers will inspect and repair the vehicles, as necessary, free of charge. The recall began on November 12, 2013. Mack's recall number is SC0371. Owners may contact Mack Trucks at 1-336-393-2000.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack CHU | 2013, 2014 |
| Mack Granite (gu) | 2013, 2014 |
| Mack LEU | 2013, 2014 |
| Mack MRU | 2013, 2014 |
| Mack Pinnacle (cxu) | 2013, 2014 |
Components: POWER TRAIN:AXLE HUBS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack CHU | 2013 | 0 | 4 |
| Mack CHU | 2014 | 0 | 5 |
| Mack Granite (gu) | 2013 | 0 | 10 |
| Mack Granite (gu) | 2014 | 0 | 13 |
| Mack LEU | 2013 | 0 | 6 |
| Mack LEU | 2014 | 0 | 6 |
| Mack MRU | 2013 | 0 | 6 |
| Mack MRU | 2014 | 0 | 7 |
| Mack Pinnacle (cxu) | 2013 | 2 | 13 |
| Mack Pinnacle (cxu) | 2014 | 0 | 18 |
Other power train recalls in 2013
39 of the 627 recall campaigns reported to NHTSA in 2013 concerned the power train; Mack Trucks, Inc. filed 118 campaigns in all.
| 13V634000 16 Dec 2013 | Daimler Trucks North America |
| 13V633000 16 Dec 2013 | Daimler Trucks North America |
| 13V610000 6 Dec 2013 | Chrysler Group LLC |
| 13V594000 25 Nov 2013 | Ford Motor Company |
| 13V572000 18 Nov 2013 | Suzuki Motor of America, Inc. |
| 13V571000 14 Nov 2013 | Honda (American Honda Motor Co.) |
| 13V568000 14 Nov 2013 | Volkswagen of America, Inc. |
| 13V538000 30 Oct 2013 | Daimler Trucks North America |
NHTSA recalls (public domain) · all recalls of 2013