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Mack 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.

NHTSA campaign 21V-856 · Reported November 3, 2021 · 79 vehicles affected

AFFECTED MODELS
Mack Granite and LR
VEHICLES AFFECTED
79
REMEDY
Dealers will replace the power steering pump, free of charge.
COST
Free

The short version

Mack Trucks, Inc. reported a problem with the hydraulic power assist pump. Here is what owners need to know.

WHAT

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.

WHY IT MATTERS

A loss of power steering assist increases the risk of a crash.

WHAT TO DO

Take it to a dealer — they will replace the power steering pump, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 21V-856.

YEAR RANGEMODEL
2021Mack Granite
2021Mack LR

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

Not affiliated

MyAutoRecalls is not affiliated with Mack Trucks, Inc. or the National Highway Traffic Safety Administration.