The defect
Mack Trucks, Inc. (Mack) is recalling certain model year 2012-2016 Granite (GU), Pinnacle (CHU, CXU), TerraPro (LEU, MRU), Titan (TD), and LR trucks manufactured from September 1, 2011, through September 8, 2015. The cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may loosen.
The risk
If he cap nut loosens and falls off, the yoke can separate from the axle input shaft and allow the drive shaft to disconnect, increasing the risk of a crash.
The remedy
Mack will notify owners, and dealers will replace the cap nut. The input shaft threads will be inspected for damage. Any damaged input shaft will be replaced. These repairs will be performed free of charge. An interim notice was sent to owners on April 25, 2016. The recall began on June 7, 2016. Owners may contact Mack customer service at 1-610-709-2131. Mack's recall campaign number for this recall is SC0399.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Granite (gu) | 2012, 2013, 2014, 2015, 2016 |
| Mack LR | 2015, 2016 |
| Mack Pinnacle (chu) | 2012, 2013, 2014, 2015 |
| Mack Pinnacle (cxu) | 2012, 2013, 2014, 2015 |
| Mack Terrapro (leu) | 2012, 2013, 2014, 2015 |
| Mack Terrapro (mru) | 2012, 2013, 2014, 2015, 2016 |
| Mack Titan (td) | 2012, 2013, 2014, 2015, 2016 |
Components: POWER TRAIN:DRIVELINE:DRIVESHAFT
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 Granite (gu) | 2012 | 0 | 13 |
| Mack Granite (gu) | 2013 | 0 | 10 |
| Mack Granite (gu) | 2014 | 0 | 13 |
| Mack Granite (gu) | 2015 | 1 | 12 |
| Mack Granite (gu) | 2016 | 0 | 8 |
| Mack LR | 2015 | 0 | 3 |
| Mack LR | 2016 | 0 | 3 |
| Mack Pinnacle (chu) | 2012 | 0 | 8 |
| Mack Pinnacle (chu) | 2013 | 0 | 3 |
| Mack Pinnacle (chu) | 2014 | 0 | 4 |
| Mack Pinnacle (chu) | 2015 | 0 | 4 |
| Mack Pinnacle (cxu) | 2012 | 0 | 12 |
| Mack Pinnacle (cxu) | 2013 | 2 | 13 |
| Mack Pinnacle (cxu) | 2014 | 0 | 18 |
| Mack Pinnacle (cxu) | 2015 | 0 | 15 |
| Mack Terrapro (leu) | 2012 | 0 | 1 |
| Mack Terrapro (leu) | 2013 | 0 | 1 |
| Mack Terrapro (leu) | 2014 | 0 | 1 |
| Mack Terrapro (leu) | 2015 | 0 | 1 |
| Mack Terrapro (mru) | 2012 | 0 | 2 |
| Mack Terrapro (mru) | 2013 | 0 | 2 |
| Mack Terrapro (mru) | 2014 | 0 | 2 |
| Mack Terrapro (mru) | 2015 | 0 | 2 |
| Mack Terrapro (mru) | 2016 | 0 | 3 |
| Mack Titan (td) | 2012 | 0 | 1 |
| Mack Titan (td) | 2013 | 0 | 2 |
| Mack Titan (td) | 2014 | 0 | 2 |
| Mack Titan (td) | 2015 | 0 | 2 |
| Mack Titan (td) | 2016 | 0 | 2 |
Other power train recalls in 2016
57 of the 919 recall campaigns reported to NHTSA in 2016 concerned the power train; Mack Trucks, Inc. filed 118 campaigns in all.
| 16V926000 22 Dec 2016 | Kovatch Mobile Equipment Corp. |
| 16V900000 14 Dec 2016 | Mercedes-Benz USA, LLC. |
| 16V856000 28 Nov 2016 | Maserati North America, Inc. |
| 16V800000 3 Nov 2016 | Yamaha Motor Corporation, USA |
| 16V755000 19 Oct 2016 | Polaris Industries, Inc. |
| 16V705000 3 Oct 2016 | Kia Motors America |
| 16V701000 29 Sept 2016 | Gillig LLC |
| 16V697000 27 Sept 2016 | Eldorado National- California, Inc. |
NHTSA recalls (public domain) · all recalls of 2016