2022 Pierce F550, 2022 Pierce M2-106, 2022 Pierce M2-112 Recall: An additional resistor was incorrectly installed on the printed circuit…
NHTSA campaign 22V596000 · Electrical System · filed Aug 8, 2022 · verified Jul 30, 2026
The defect
Pierce Manufacturing (Pierce) is recalling certain 2022 M2-106, M2-112, and F550 fire trucks equipped with Weldon V-mux Hercules HC Node 1.5 electrical multiplex modules. An additional resistor was incorrectly installed on the printed circuit board, which can disrupt CAN network communication and cause vehicle lighting to fail.
The risk
Inoperative vehicle lighting can reduce visibility and increase the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Weldon will replace the modules, free of charge. Owner notification letters were mailed on October 4, 2022. Owners may contact Pierce's customer service at 1-888-974-3723. Pierce's number for this recall is 74B320.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
Other campaigns involving Pierce vehicles
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- 2023–2024 Pierce Enforcer and 2 other models — Tires mounted on the front steer axles are incompatible…
Source: NHTSA recall database, campaign 22V596000 (manufacturer number 74B320). Data last verified Jul 30, 2026.