NHTSA Recall 21V573000: Service brakes, air
Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 124 vehicles. It affects 3 models including the Mack Granite (gr).
| NHTSA campaign | 21V573000 |
|---|---|
| Manufacturer campaign | SC0427 |
| Component | SERVICE BRAKES, AIR |
| Report received | July 27, 2021 |
| Owner notification | August 10, 2021 |
| Initiated by | Manufacturer |
Defect
Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite, LR, and TerraPro vehicles. The rear drive axle may have the incorrect type of brake cam installed, which could result in inoperative rear axle brakes.
Safety risk
Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.
Remedy
Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0427.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Vehicles covered by recall 21V573000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.