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Manufacturer recall number

Mack recall SC0464

Mack calls it SC0464. NHTSA filed it as campaign 24V399000 on Jun 4, 2024: electrical system on the 2024 Mack MD (electric), 24 vehicles potentially affected, under a do-not-drive advisory. 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
24V3990002024 Mack MD (electric)Electrical SystemJun 4, 202424Do not drive
Problem Mack Trucks, Inc. (Mack) is recalling certain 2024 MMDe electric trucks. The battery management system software may cause the high-voltage battery to shut down, which can result in a sudden loss of steering control and drive power. Risk A sudden loss of steering control and drive power increases the risk of a crash. Fix Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed July 10, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0464.

The manufacturer’s own words as filed for 24V399000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SC0464 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. 24V399000 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 SC0464 the same recall as 24V399000?

Yes. SC0464 is Mack’s own number for it; 24V399000 is NHTSA’s. One recall, two references.

Which vehicles does SC0464 cover?

2024 Mack MD (electric), 24 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 SC0464 repair cost anything?

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