Recall 24V147 covers 15 2023-2024 Pierce Commercial vehicles with node firmware that can overload electrical circuits. Weldon's firmware update is free.
Pierce is recalling 15 2023-2024 Commercial chassis equipped with Hercules HC 1.7 multiplex nodes because a short circuit or wiring failure can leave an output pin on and overload electrical circuits. Overloaded circuits can overheat and increase the risk of fire, and Pierce dealers will complete the recall repair free of charge.
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What's wrong?
The Hercules HC 1.7 NODE on 2023-2024 Pierce Commercial trucks is a multiplex node, an electronic control module that manages electrical outputs for truck equipment. Instead of running every switch directly to every device, the multiplex system uses modules like this node to send power and commands through the vehicle's electrical system.
On affected trucks, the problem is in the node firmware. If a short circuit or wiring failure happens, firmware version 1.00 can fail to turn off the output pin. That leaves the circuit energized when it should be shut down, which overloads the electrical circuit connected to that output.
There is no warning sign before failure. A Pierce dealer or service technician identifies the affected node by checking the firmware number, serial number, and date range against the recall information.
Who's affected?
Both model years use the same Hercules HC 1.7 NODE multiplex node tied to the electrical-system issue.
| 2024 Pierce Commercial | electrical system |
|---|---|
| 2023 Pierce Commercial | electrical system |
| Units affected | 15 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Overloaded electrical circuits can overheat and increase the risk of fire. There is no warning sign before failure, so schedule the firmware update soon and follow Pierce's instructions until the repair is complete. Repair is free at any franchised Pierce dealer.
What should I do?
- Check your VIN to confirm your 2023-2024 Pierce Commercial is included in this recall.
- Contact a franchised Pierce dealer to schedule the free firmware update that corrects the Hercules HC 1.7 multiplex-node output-pin shutoff problem.
- Bring the recall notice if Pierce mailed one. If not, reference recall number 24V147 when you call.
- Ask Pierce customer service at 1-888-974-3723 about service timing or fleet-use guidance until the firmware update is complete.
What happens at the repair
At the dealer, a Pierce technician updates the firmware in the Hercules HC 1.7 multiplex nodes so the output pins shut off properly after a short circuit or wiring failure. The software update is free under the recall, with parts and labor covered. If you already paid for a related repair before the owner notice, direct the claim to Pierce for review and include the repair documentation the service desk requests. Pierce also lists recall number 74B334 for this campaign.
| Reimbursement | Reimbursement available |
|---|
Timeline
| February 26, 2024 | NHTSA published the recall |
|---|---|
| April 16, 2024 | Owner notification mailed |
| April 16, 2024 | Dealer notification began |
| April 16, 2024 | Interim owner notification (was planned for this date) |
| April 19, 2024 | Dealer notification ended |
Frequently asked questions
What is recall 24V147?
Recall 24V147 covers 15 2023-2024 Pierce Commercial chassis equipped with Hercules HC 1.7 multiplex nodes. A short circuit or wiring failure can keep an output pin from shutting off, overloading electrical circuits and raising fire risk. Weldon will update the firmware for free.
What should I do if my 2023-2024 Pierce Commercial is on this recall?
Check your VIN to confirm your specific chassis is included in recall 24V147. If it is, contact Pierce customer service at 1-888-974-3723 or a Pierce service center to arrange the firmware update. Reference Pierce recall number 74B334 when you call.
Is the recall repair free?
Yes. Federal recall law requires the recall remedy to be performed at no cost, and Pierce's remedy states that Weldon will update the firmware free of charge. Parts and labor are covered for vehicles included in recall 24V147.
What is the safety risk?
The safety risk is fire. If the multiplex node does not shut off the output pin after a short circuit or wiring failure, the electrical circuit can overload and overheat. The recall repair updates the firmware to address that defect.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V147000 |
|---|---|
| Pierce customer service | 1-888-974-3723 |
| NHTSA recall # | 24V147 |
| NHTSA recall # (full) | 24V147000 |
Source documents
-
Download Recall Report (PDF) - Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →