NHTSA campaign 21V856000 · Part 573 safety recall report

Mack Trucks, Inc.: Steering › Hydraulic Power Assist › Pump

Mack Trucks, Inc. reported this defect to federal regulators on Nov 3, 2021 and put the number of vehicles at risk at 79. The repair is free for as long as the recall stands.

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.

2 model years covered

Newest first
VehicleComplaintsRecallsFiresCrashes
2021 Mack Granite (gr)0900
2021 Mack LR0300

What this page is, and what to do next

A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.

This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 21V856000.

Full record for the 2021 Mack Granite (gr) → · Recalls carrying a do-not-drive advisory → · Where this data comes from →