Mack Pioneer and Anthem Rear Brake Modulator
Mack is recalling 2025–2027 Pioneer and 2026–2027 Anthem trucks over rear brake modulator short-circuit risk affecting ABS and stability control.
Contact Mack Trucks immediately to schedule service. Do not operate the vehicle until the rear brake modulator connectors have been inspected and repaired by an authorized dealer.
Recall at a glance
- Vehicles affected
- 2,772
- Repair cost
- Free of charge
- Owner letters mailed
- June 8, 2026
- Manufacturer's recall number
- SC0494
- Manufacturer phone
- 1-800-866-1177
Why it was recalled
Mack Trucks is recalling certain 2025–2027 Pioneer (4) and 2026–2027 Anthem (4) vehicles due to unprotected electrical connectors on the rear brake modulators that may short circuit. A short circuit can disable the anti-lock brake system (ABS) and electronic stability control (ESC), increasing crash risk.
Is mine affected?
This recall covers specific vehicles. Look up your VIN at nhtsa.gov/recalls or check with the manufacturer to confirm yours is included.
MACK ANTHEM AN (4) (2025-2027), SERVICE BRAKES, AIR
Where it was sold
Distributed nationwide.
Timeline
- Reported to NHTSA
- Listed on Recall Canary
- Summary updated
Other recent recalls from Mack Trucks, Inc.
Editorial summary by Recall Canary · summary updated 2026-04-29 · primary source: U.S. National Highway Traffic Safety Administration · severity reflects the agency's published classification