MACK — recall

Automotive · United States · 2026-04-23

Mack Pioneer and Anthem trucks' rear brake modulators may malfunction

Country	United States
Category	Automotive
Published	2026-04-23
Manufacturer	Mack Trucks, Inc.
Models affected	ANTHEM AN (4), PIONEER PR (4)
Model year	2026-2027, 2025-2027
Units affected	2337
Defect	Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-2027 Anthem (4) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC)._x000D_ A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
Component	SERVICE BRAKES, AIR
Remedy	Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators, as necessary, free of charge. Owner notification letters are expected to be mailed June 22, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning April 30, 2026.
Recall number	26V261000
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	FMVSS (NHTSA) · Full guide →

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