{
  "owners": null,
  "title": "Mack recall 21V573 (SC0427): 2021 Granite, LR, and TerraPro",
  "url": "https://carsmultiverse.com/recall/21v573/",
  "summary": "Recall 21V573 (Mack): Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash. Mack's own number: SC0427.",
  "excerpt": "Mack Granite (Gr), Mack Lr, Mack Te, model year 2021. Filed by Mack Trucks, Inc. and reported to NHTSA on 27 July 2021. 124 vehicles potentially affected. What the notice says 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. 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: SC0427. That is the number on the owner letter and on the dealer paperwork. 21V573 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: “Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.” 21V573 Mack Trucks, Inc. Service Brakes, Air 27 July 2021 2021-2021 MACK GRANITE (GR), MACK LR, MACK TE Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash. Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary",
  "register": {
    "authority": "NHTSA",
    "country": "United States",
    "index": "https://carsmultiverse.com/changed/"
  },
  "datePublished": "2026-08-23T21:57:10+00:00",
  "dateModified": "2026-09-16T19:42:00+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Mack recall 21V573 (SC0427): 2021 Granite, LR, and TerraPro\", https://carsmultiverse.com/recall/21v573/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}