{
  "owners": null,
  "title": "Mack recall 21V953 (SC0433): 2008-2019 TerraPro (MRU) and 2019-2022 TerraPro (TE)",
  "url": "https://carsmultiverse.com/recall/21v953/",
  "summary": "Recall 21V953 (Mack): The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.",
  "excerpt": "Mack Mru, Mack Te, Mack Terrapro (Mru), Mack Terrapro (Te), model years 2008 to 2022. Filed by Mack Trucks, Inc. and reported to NHTSA on 9 December 2021. 20,668 vehicles potentially affected. What the notice says 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. Is your vehicle included? Check with your VIN at NHTSA , or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on. CarsMultiverse / Recalls Mack's own number for this recall: SC0433. That is the number on the owner letter and on the dealer paperwork. 21V953 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways. Answered from the register this site holds. NHTSA is the record to act on. What the authority says can happen if this is not fixed: “The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.” 21V953 Mack Trucks, Inc. Parking Brake 9 December 2021 2008-2022 MACK MRU, MACK TE, MACK TERRAPRO (MRU), MACK TERRAPRO (TE) The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash. Dealers will remove the ex",
  "register": {
    "authority": "NHTSA",
    "country": "United States",
    "index": "https://carsmultiverse.com/changed/"
  },
  "datePublished": "2026-08-23T22:13:01+00:00",
  "dateModified": "2026-09-16T20:22:42+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Mack recall 21V953 (SC0433): 2008-2019 TerraPro (MRU) and 2019-2022 TerraPro (TE)\", https://carsmultiverse.com/recall/21v953/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}