NHTSA Campaign 25V495000

SERVICE BRAKES, AIR:DRUM

Issued by Mack Trucks, Inc. · Reported Jul 29, 2025 · 36 vehicles affected

What's wrong

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."

Consequence

Reduced brake function can extend the distance required to stop, increasing the risk of a crash.

Remedy

Dealers will replace the steer axle brake drums, free of charge. Owner notification letters were mailed August 27, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0482.

Vehicles affected by this recall

Make Model Year Units
MACK GRANITE GR (4) 2026 36

Source: NHTSA Campaign 25V495000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.