The defect
Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite and LR vehicles. A machining defect may cause pressure to build in the power steering pump and break the shaft seal, resulting in a loss of power steering assist.
The risk
A loss of power steering assist increases the risk of a crash.
The remedy
Dealers will replace the power steering pump, free of charge. Owner notification letters were mailed on December 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0432.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Granite (gr) | 2021 |
| Mack LR | 2021 |
Components: STEERING:HYDRAULIC POWER ASSIST:PUMP
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 (gr) | 2021 | 0 | 9 |
| Mack LR | 2021 | 0 | 3 |
Other steering recalls in 2021
65 of the 988 recall campaigns reported to NHTSA in 2021 concerned the steering; Mack Trucks, Inc. filed 118 campaigns in all.
| 21V989000 17 Dec 2021 | Mercedes-Benz USA, LLC |
| 21V968000 14 Dec 2021 | Lion Electric Company |
| 21V954000 9 Dec 2021 | Subaru of America, Inc. |
| 21V946000 8 Dec 2021 | Daimler Trucks North America, LLC |
| 21V920000 23 Nov 2021 | Toyota Motor Engineering & Manufacturing |
| 21V918000 23 Nov 2021 | Chrysler (FCA US, LLC) |
| 21V891000 17 Nov 2021 | Sutphen Corporation |
| 21V885000 16 Nov 2021 | Jayco, Inc. |
NHTSA recalls (public domain) · all recalls of 2021