Mack recall — Control Unit/Module
NHTSA · April 23, 2026
- NHTSA recall campaign 26V261000 (Mack), reported .
- Potentially affected vehicles: 2,772.
- Component: Control Unit/Module.
- Details as of ; the linked official notice is authoritative for lot codes, VINs, and remedies.
- Agency
- NHTSA
- Posted
- Recalling firm
- Mack Trucks, Inc.
- Source ID
- 26V261000
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).
Consequence
A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
Corrective action
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 were mailed June 8, 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.
Affected vehicles
| Make | Model | Year |
|---|---|---|
| Mack | Anthem An (4) | 2026 |
| Mack | Anthem An (4) | 2027 |
| Mack | Pioneer Pr (4) | 2025 |
| Mack | Pioneer Pr (4) | 2026 |
| Mack | Pioneer Pr (4) | 2027 |
Related: Vehicle recalls · All recall events