nhtsa2025-07-29

Reduced Brake Function/FMVSS 121

Mack Trucks, Inc. (Mack) is recalling certain 2026 Mack GR trucks. The brake drum and steer axle combination are incompatible, which may cause a loss of brake function. As such, these vehicles fail to comply with the requirements of

Overview

Mack Trucks, Inc. (Mack) is recalling certain 2026 Mack GR trucks. The brake drum and steer axle combination are incompatible, which may cause a loss of brake function. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

Products Affected

  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121
  • Mack Trucks, Inc.
    Reduced Brake Function/FMVSS 121

Related Recalls