Mack Trucks, Inc.: Service Brakes, Air › Disc › Chamber
Mack Trucks, Inc. reported this defect to federal regulators on Dec 15, 2025 and put the number of vehicles at risk at 679. The repair is free for as long as the recall stands.
The defect
Mack Trucks, Inc. (Mack) is recalling certain 2010-2016 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to overheat.
The risk
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
The remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Owner letters were mailed April 14, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.
7 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2016 Mack Granite (gu) | 0 | 8 | 0 | 0 |
| 2015 Mack Granite (gu) | 1 | 12 | 0 | 0 |
| 2014 Mack Granite (gu) | 0 | 13 | 0 | 0 |
| 2013 Mack Granite (gu) | 0 | 10 | 0 | 0 |
| 2012 Mack Granite (gu) | 0 | 13 | 0 | 0 |
| 2011 Mack Granite (gu) | 0 | 4 | 0 | 0 |
| 2010 Mack Granite (gu) | 0 | 4 | 0 | 0 |
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 25V867000.
Full record for the 2016 Mack Granite (gu) → · Recalls carrying a do-not-drive advisory → · Where this data comes from →