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Manufacturer recall number

Mack recall SC0424

Mack calls it SC0424. NHTSA filed it as campaign 21V293000 on Apr 26, 2021: steering on the 2019–2020 Mack LR, 272 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
21V2930002019–2020 Mack LRSteeringApr 26, 2021272high
Problem Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil. Risk The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash. Fix Dealers will replace the transfer case, free of charge. Owner notifications letters were mailed on May 12, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0424.

The manufacturer’s own words as filed for 21V293000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SC0424 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. 21V293000 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 SC0424 the same recall as 21V293000?

Yes. SC0424 is Mack’s own number for it; 21V293000 is NHTSA’s. One recall, two references.

Which vehicles does SC0424 cover?

2019–2020 Mack LR, 272 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 SC0424 repair cost anything?

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