MACK 2021 MACK GRANITE (GR) Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2021 MACK GRANITE (GR)
Brand
MACK
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2021
Mack Trucks, Inc. is recalling certain 2021 MACK GRANITE (GR) vehicles due to steering:hydraulic power assist:pump issues. A loss of power steering assist increases the risk of a crash..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
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.
Reported concern (NHTSA)
A loss of power steering assist increases the risk of a crash.
Recommended Action
Per NHTSA guidance
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.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026