NHTSA Recall 21V856000: Pump (steering)
Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 79 vehicles. It affects 2 models including the Mack Granite (gr).
| NHTSA campaign | 21V856000 |
|---|---|
| Manufacturer campaign | SC0432 |
| Component | STEERING › HYDRAULIC POWER ASSIST › PUMP |
| Report received | November 3, 2021 |
| Owner notification | December 10, 2021 |
| Initiated by | Manufacturer |
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.
Safety risk
A loss of power steering assist increases the risk of a crash.
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Vehicles covered by recall 21V856000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.