NHTSA Campaign 21V953000

PARKING BRAKE

Issued by Mack Trucks, Inc. · Reported Dec 9, 2021 · 20,668 vehicles affected

What's wrong

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.

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.

Vehicles affected by this recall

Make Model Year Units
MACK MRU 2008 20,668
MACK MRU 2009 20,668
MACK MRU 2010 20,668
MACK TE 2019 20,668
MACK TE 2020 20,668
MACK TE 2021 20,668
MACK TERRAPRO (MRU) 2011 20,668
MACK TERRAPRO (MRU) 2012 20,668
MACK TERRAPRO (MRU) 2013 20,668
MACK TERRAPRO (MRU) 2014 20,668
MACK TERRAPRO (MRU) 2015 20,668
MACK TERRAPRO (MRU) 2016 20,668
MACK TERRAPRO (MRU) 2017 20,668
MACK TERRAPRO (MRU) 2018 20,668
MACK TERRAPRO (MRU) 2019 20,668
MACK TERRAPRO (TE) 2022 20,668

Source: NHTSA Campaign 21V953000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.