Recall 21V953000: 2008–2010 Mack MRU
- Report received
- Dec 9, 2021
- Manufacturer
- Mack Trucks, Inc.
- Potentially affected
- 20,668vehicles
- Model years
- 2008–2010
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
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.
Possible consequence
The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.
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.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 2008 Mack MRU0 complaints
- 2009 Mack MRU0 complaints
- 2010 Mack MRU0 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.