The defect
Mack Trucks, Inc. (Mack) is recalling certain 2008-2019 TerraPro (MRU) and 2019-2022 TerraPro (TE) vehicles. A brake control valve air leak into the attached exhaust hose can create excessive back pressure, causing the parking brake to release unexpectedly.
The risk
The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.
The remedy
Dealers will remove the exhaust tube and fitting from the valve, free of charge. Owner notification letters were mailed February 8, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0433.
NHTSA's own wording · initiated by ODI
Vehicles covered
| Model | Model years |
|---|---|
| Mack MRU | 2008, 2009, 2010 |
| Mack TE | 2019, 2020, 2021 |
| Mack Terrapro (mru) | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| Mack Terrapro (te) | 2022 |
Components: PARKING BRAKE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
Other parking brake recalls in 2021
5 of the 988 recall campaigns reported to NHTSA in 2021 concerned the parking brake; Mack Trucks, Inc. filed 118 campaigns in all.
| 21V631000 11 Aug 2021 | Ford Motor Company |
| 21V547000 20 Jul 2021 | Daimler Trucks North America, LLC |
| 21V488000 28 Jun 2021 | Prevost Cars, Inc. |
| 21V226000 1 Apr 2021 | Navistar, Inc. |
NHTSA recalls (public domain) · all recalls of 2021