The defect
Mack Trucks, Inc. (Mack) is recalling certain 2016 Pinnacle CHU and CXU diesel trucks equipped with certain Dana steer axles. The castellated nut and cotter pin on the steer axles may not have been properly torqued, allowing the tie rod to loosen within the steer axle.
The risk
If the tie rod loosens, it may disconnect from the steering knuckle, causing a complete loss of steering, increasing the risk of a crash.
The remedy
Mack will notify owners, and dealers will inspect the torque of the castellated nut and tie rod, tightening it as necessary. If the tie rod stud and knuckle on units cannot be sufficiently torqued, the dealer will replace the knuckle and tie rod end assembly, free of charge. The recall began on October 17, 2017. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0408.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Pinnacle (chu) | 2016 |
| Mack Pinnacle (cxu) | 2016 |
Components: STEERING | STEERING:LINKAGES:TIE ROD ASSEMBLY
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 Pinnacle (chu) | 2016 | 0 | 3 |
| Mack Pinnacle (cxu) | 2016 | 0 | 2 |
Other steering recalls in 2017
47 of the 810 recall campaigns reported to NHTSA in 2017 concerned the steering; Mack Trucks, Inc. filed 118 campaigns in all.
| 17V791000 8 Dec 2017 | JH Global Services, Inc. |
| 17V714000 14 Nov 2017 | Mercedes-Benz USA, LLC. |
| 17V642000 12 Oct 2017 | HME, Inc. |
| 17V641000 11 Oct 2017 | Caterpillar Inc. |
| 17V631000 9 Oct 2017 | E-One Incorporated |
| 17V629000 6 Oct 2017 | Daimler Trucks North America LLC |
| 17V628000 6 Oct 2017 | Daimler Trucks North America LLC |
| 17V608000 29 Sept 2017 | Kia Motors America |
NHTSA recalls (public domain) · all recalls of 2017