⌘K
HomeRecalls Mack SC0427
Manufacturer recall number

Mack recall SC0427

Mack calls it SC0427. NHTSA filed it as campaign 21V573000 on Jul 27, 2021: service brakes, air on the 2021 Mack Granite (gr) and 2 other Mack models, 124 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
21V5730002021 Mack Granite (gr) and 2 other Mack modelsService Brakes, AirJul 27, 2021124high
Problem 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. Risk Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash. Fix Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0427.

The manufacturer’s own words as filed for 21V573000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SC0427 is the number Mack assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 21V573000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is SC0427 the same recall as 21V573000?

Yes. SC0427 is Mack’s own number for it; 21V573000 is NHTSA’s. One recall, two references.

Which vehicles does SC0427 cover?

2021 Mack Granite (gr) and 2 other Mack models, 124 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the SC0427 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.