Recall 26V261000: Mack Trucks, Inc., service brakes, air:antilock:control unit/module
Reported 2026-04-23 · vehicle recall · 2,772 units
Problem
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).
Risk
A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
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 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 |
| Manufacturer campaign | SC0494 |
|---|---|
| Initiated by | MFR |
| Owner letters | 2026-06-08 |
Original record: NHTSA · JSON: /api/recall/26V261000.json · all recent recalls