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Manufacturer recall number

Mack recall SC0455

Mack calls it SC0455. NHTSA filed it as campaign 23V792000 on Nov 22, 2023: vehicle speed control on the 2023–2024 Mack Anthem (an) and 3 other Mack models, 650 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
23V7920002023–2024 Mack Anthem (an) and 3 other Mack modelsVehicle Speed ControlNov 22, 2023650high
Problem Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems." Risk An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash. Fix Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.

The manufacturer’s own words as filed for 23V792000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SC0455 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. 23V792000 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 SC0455 the same recall as 23V792000?

Yes. SC0455 is Mack’s own number for it; 23V792000 is NHTSA’s. One recall, two references.

Which vehicles does SC0455 cover?

2023–2024 Mack Anthem (an) and 3 other Mack models, 650 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 SC0455 repair cost anything?

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