The 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.
The risk
Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Granite (gr) | 2021 |
| Mack LR | 2021 |
| Mack TE | 2021 |
Components: SERVICE BRAKES, AIR
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 (gr) | 2021 | 0 | 9 |
| Mack LR | 2021 | 0 | 3 |
| Mack TE | 2021 | 0 | 3 |
Other service brakes, air recalls in 2021
14 of the 988 recall campaigns reported to NHTSA in 2021 concerned the service brakes, air; Mack Trucks, Inc. filed 118 campaigns in all.
| 21V914000 22 Nov 2021 | Daimler Trucks North America, LLC |
| 21V883000 12 Nov 2021 | Timpte, Inc. |
| 21V720000 16 Sept 2021 | PACCAR Incorporated |
| 21V383000 24 May 2021 | Great Dane Trailers |
| 21V328000 10 May 2021 | PACCAR Incorporated |
| 21V285000 22 Apr 2021 | Blue Bird Body Company |
| 21V284000 22 Apr 2021 | Blue Bird Body Company |
| 21V227000 1 Apr 2021 | Navistar, Inc. |
NHTSA recalls (public domain) · all recalls of 2021