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NHTSA campaign 24V792000 · manufacturer recall SC0472

2020–2025 Mack Anthem (an) and 4 other Mack models: electrical system recall

Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

minor 59,338 vehicles affected 71% reported repaired

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working. Risk Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash. Fix Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

Reported to NHTSA Oct 23, 2024 by Mack Trucks, Inc, owners notified Dec 9, 2024.

Which vehicles are covered

Source: NHTSA campaign 24V792000
Model yearOn WhichTrim
2020 Mack Anthem (an)
2021 Mack Anthem (an)
2022 Mack Anthem (an)
2023 Mack Anthem (an)
2024 Mack Anthem (an)
2025 Mack Anthem (an)
2020 Mack Granite (gr)
2021 Mack Granite (gr)
2022 Mack Granite (gr)
2023 Mack Granite (gr)
2024 Mack Granite (gr)
2025 Mack Granite (gr)
2020 Mack Pinnacle (pi/pn)
2021 Mack Pinnacle (pi/pn)
2022 Mack Pinnacle (pi/pn)
2023 Mack Pinnacle (pi/pn)
2024 Mack Pinnacle (pi/pn)
2025 Mack Pinnacle (pi/pn)
2025 Mack Pioneer PR (4)
2020 Mack Terrapro (te)
2021 Mack Terrapro (te)
2022 Mack Terrapro (te)
2023 Mack Terrapro (te)
2024 Mack Terrapro (te)
2025 Mack Terrapro (te)

None of the vehicles this campaign names has a page on WhichTrim: the catalogue covers the cars, trucks and SUVs the EPA certifies from 2016 on, and these vehicles fall outside it — older model years, or motorhomes, trailers, buses, motorcycles and chassis cabs the EPA does not rate. The campaign record above is complete as filed, and whether one specific vehicle is included is settled by its VIN. Other campaigns on vehicles without a page here →

How much of it has been fixed

Source: manufacturer quarterly report, 49 CFR 573.7
Reported repaired 71%

of the campaign

The final figure: the six quarters of reporting that 49 cfr 573.7 requires have closed.

This is the manufacturer's own cumulative count of vehicles it has inspected and repaired, divided by the vehicles the campaign covers. It files that count with NHTSA every quarter for six consecutive quarters, starting from the quarter in which owners were told a remedy was ready, and then the obligation ends — so a figure on an older campaign is where the count stopped, not where it stands today.

It rarely reaches 100%, and not because the work was not done. The same report asks manufacturers to count vehicles they could not reach at all — exported, stolen, scrapped, or simply never located — and those stay in the denominator. A low number means a lot of these vehicles are still out there unrepaired; it does not tell you which ones.

The federal paperwork

Source: nhtsa.gov

Filed documents

  • Defect report PDF — The manufacturer's own filing to NHTSA describing the defect, the risk and the affected build range.
  • Owner letter PDF — The letter mailed to registered owners, in full.

Check one specific vehicle

A recall applies to a build range, so year, make and model cannot settle it. NHTSA checks a VIN against the manufacturer's own list and tells you whether the repair is still outstanding on that vehicle.

NHTSA VIN recall lookup →

Campaign 24V792000 · the manufacturer calls it SC0472

Own one, or run a fleet? Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, this one's expansions included. Or take a free one-line alert by model year.

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Common questions

Source: NHTSA, 49 CFR Part 573

Is SC0472 the same recall as 24V792000?

Yes. SC0472 is the number Mack Trucks, Inc uses for this campaign in its own paperwork and in the letter it sends owners. 24V792000 is the number NHTSA files it under. One recall, two references — dealers and service departments generally quote the manufacturer's.

Does this recall repair cost anything?

No. Federal law requires the manufacturer to remedy a safety defect or a compliance failure at no charge, for vehicles up to 15 years old measured from the date of first sale. A dealer that asks you to pay for a recall repair is in the wrong.

How do I know whether my vehicle is included?

By VIN, not by model year. The manufacturer files a build range with NHTSA and only vehicles inside it are covered, so two identical-looking cars from the same year can differ. NHTSA's own lookup checks a VIN against the manufacturer's list.

What if the repair is not available yet?

It happens, and often. Manufacturers must notify owners when a defect is found even if the parts or the software are not ready, then notify them a second time once the remedy exists. The remedy filed for this campaign is described above.

What did the manufacturer say was wrong?

The problem, risk and fix quoted on this page are the manufacturer's own words as filed with NHTSA under 49 CFR Part 573. WhichTrim does not paraphrase them.

Who started this recall?

NHTSA's record credits the manufacturer. A recall can begin with the manufacturer's own testing, with a defect investigation, or with a compliance test against a Federal Motor Vehicle Safety Standard.