Recall 22V596 affects 10 2022 Pierce M2-106, M2-112, and F550 fire trucks for vehicle-lighting failure. Repair is free at any franchised Pierce dealer.
Pierce is recalling 10 2022 M2-112, F550, and M2-106 fire trucks because an incorrectly installed resistor in the Weldon V-mux Hercules HC Node 1.5 module can disrupt CAN network communication and make vehicle lighting fail. Inoperative lighting reduces visibility and increases crash risk; Pierce dealers will complete the repair free of charge.
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What's wrong?
The V-Mux Hercules HC Node 1.5 on the 2022 Pierce M2-112, F550, and M2-106 fire trucks is an electrical multiplex module, which means it is a controller that receives signals and sends commands to vehicle equipment. In normal operation, it communicates on the truck's CAN network, the shared wiring communication system that lets lighting and other electrical functions respond to switches and programming.
On the affected modules, an extra resistor was installed on the printed circuit board because of a bill of material error. That resistor changes the circuit enough to disrupt CAN network communication, so the module can stop passing the commands that keep vehicle lighting operating, including lighting at the rear of the truck.
Owners and operators do not get a usable warning before this failure. There is no warning sign before failure, so lighting failure is found when the lights stop working or during an inspection.
Who's affected?
Covers three Pierce truck models from the 2022 model year, all tied to the same V-Mux Hercules HC Node 1.5 electrical component.
| 2022 Pierce M2-112 | electrical system |
|---|---|
| 2022 Pierce F550 | electrical system |
| 2022 Pierce M2-106 | electrical system |
| Units affected | 10 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Inoperative vehicle lighting reduces visibility and increases the risk of a crash. There is no warning sign before the lighting stops working, so check lights before trips and schedule the repair soon if your VIN is included. Repair is free at any franchised Pierce dealer.
What should I do?
- Check your VIN to confirm your 2022 Pierce M2-112, F550, or M2-106 is included in this recall.
- Contact a franchised Pierce dealer to schedule the free Weldon V-mux Hercules HC Node 1.5 module replacement that fixes the CAN communication disruption and lighting failure risk.
- Bring the recall notice if Pierce has mailed one. If not, reference recall number 22V596 and Pierce recall 74B320 when you call.
- Call Pierce customer service at 1-888-974-3723 with questions about the repair.
- Confirm the truck's exterior lighting works before each trip, and keep the truck out of service if lighting fails before repair.
What happens at the repair
At the dealer, a Pierce technician replaces the Weldon V-mux Hercules HC Node 1.5 electrical multiplex module covered by recall 22V596. The replacement module is free under the recall, and Weldon provides the replacement units. Pierce's plan says Weldon reimburses labor costs and that the affected private-label product has already been remedied. If your department paid labor for this module replacement, contact Pierce customer service with the work order and payment paperwork so the claim can be reviewed.
| Reimbursement | Reimbursement available |
|---|
Timeline
| August 8, 2022 | NHTSA published the recall |
|---|---|
| October 4, 2022 | Dealer notification began |
| October 4, 2022 | Dealer notification ended |
| October 4, 2022 | Owner notification mailed |
| October 4, 2022 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| October 4, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V596?
Recall 22V596 covers 10 2022 Pierce M2-106, M2-112, and F550 fire trucks equipped with Weldon V-mux Hercules HC Node 1.5 electrical multiplex modules. An incorrect resistor on the printed circuit board can disrupt CAN network communication and cause vehicle lighting to fail. Weldon will replace the modules for free.
What should I do if my 2022 Pierce M2-112, F550, or M2-106 is on this recall?
Check your VIN to confirm your specific fire truck is included in recall 22V596. If it is, contact Pierce customer service at 1-888-974-3723 and reference Pierce recall number 74B320. The affected Weldon module replacement is free.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost, and Weldon will replace the affected electrical multiplex modules free of charge. Pierce mailed owner letters on October 4, 2022 with recall instructions.
What is the safety risk?
The safety risk is failed vehicle lighting. If the lighting stops working, other drivers have less visibility of the fire truck, which increases crash risk. Confirm the VIN, then arrange the free module replacement through Pierce customer service or an authorized Pierce service location.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V596000 |
|---|---|
| Pierce customer service | 1-888-974-3723 |
| NHTSA recall # | 22V596 |
| NHTSA recall # (full) | 22V596000 |
Source documents
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 →