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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Granite (gu) | 2010, 2011, 2012, 2013, 2014, 2015, 2016 |
Components: SERVICE BRAKES, AIR:DISC:CHAMBER
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack Granite (gu) | 2010 | 0 | 4 |
| Mack Granite (gu) | 2011 | 0 | 4 |
| Mack Granite (gu) | 2012 | 0 | 13 |
| Mack Granite (gu) | 2013 | 0 | 10 |
| Mack Granite (gu) | 2014 | 0 | 13 |
| Mack Granite (gu) | 2015 | 1 | 12 |
| Mack Granite (gu) | 2016 | 0 | 8 |
Other service brakes, air recalls in 2025
24 of the 891 recall campaigns reported to NHTSA in 2025 concerned the service brakes, air; Mack Trucks, Inc. filed 118 campaigns in all.
| 25V898000 19 Dec 2025 | New Flyer of America, Inc. |
| 25V817000 25 Nov 2025 | International Motors, LLC |
| 25V806000 20 Nov 2025 | International Motors, LLC |
| 25V795000 17 Nov 2025 | PACCAR Incorporated |
| 25V781000 13 Nov 2025 | International Motors, LLC |
| 25V724000 23 Oct 2025 | Wartech Engineering, LLC |
| 25V602000 11 Sept 2025 | Daimler Trucks North America, LLC |
| 25V601000 11 Sept 2025 | Daimler Trucks North America, LLC |
NHTSA recalls (public domain) · all recalls of 2025