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NHTSA campaign 24V147000 · manufacturer recall 74B334

2023–2024 Pierce Commercial: electrical system recall

Overloaded electrical circuits can overheat, increasing the risk of fire.

critical 15 vehicles affected

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem Pierce Manufacturing (Pierce) is recalling certain 2023-2024 Commercial Chassis equipped with Hercules HC 1.7 multiplex nodes. In the event of a short circuit or wiring failure, the firmware in the node may fail to shut off the output pin, resulting in overloaded electrical circuits. Risk Overloaded electrical circuits can overheat, increasing the risk of fire. Fix Weldon will update the firmware, free of charge. The manufacturer has not yet provided a schedule for recall notification. Owners may contact Pierce customer service at 1-888-974-3723. Pierce's number for this recall is 74B334.

Reported to NHTSA Feb 26, 2024 by Pierce Manufacturing, owners notified Apr 16, 2024.

Which vehicles are covered

Source: NHTSA campaign 24V147000
Model yearOn WhichTrim
2023 Pierce Commercial
2024 Pierce Commercial

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 →

The federal paperwork

Source: nhtsa.gov

Filed documents

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 24V147000 · the manufacturer calls it 74B334

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 74B334 the same recall as 24V147000?

Yes. 74B334 is the number Pierce Manufacturing uses for this campaign in its own paperwork and in the letter it sends owners. 24V147000 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 here reads as still under development.

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.