SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Published April 23, 2026 · Recall initiated: April 23, 2026
What's the hazard
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).
What to do
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.
Recall details
- Brand
- MACK
- Model
- PIONEER PR (4)
- Manufacturer
- Mack Trucks, Inc.
- Lot
- 2027 MACK PIONEER PR (4) | 2027 MACK ANTHEM AN (4) | 2026 MACK ANTHEM AN (4) | 2026 MACK PIONEER PR (4) | 2025 MACK PIONEER PR (4)
- Risk classification
- V
- Country
- US
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